Average government primary school class sizes by school size (2009-2024)

The class size audit is conducted in all NSW government primary, infant and central (primary grades only) schools in March each year.

Data notes

Students attending schools for specific purposes (SSPs), students in support classes in regular schools and distance education students are excluded from average class size calculations.
The average class size for each year level is calculated from regular and multi-age classes that contain a student from that year level. This can result in a lower K-6 average class size than any individual year level.
From 2017, school size is based on primary enrolment rather than school classification.
Data from earlier years is not replaced in the Class Size fact sheet. Schools change size. Historical data displays the data that was correct in that year.
Refer to the individual class size factsheet publication for further information and policy context.

Data source

Education Statistics and Measurement Unit, Centre for Education Statistics and Evaluation.

Data quality statement

The Class Size Audit Data Quality Statement addresses the quality of the Class Size Audit dataset using the dimensions outlined in the NSW Department of Education's data quality management framework: institutional environment, relevance, timeliness, accuracy, coherence, interpretability and accessibility. It provides an overview of the dataset's quality and highlights any known data quality issues.

Data Source:

Data.NSW

Tags

Data and Resources

CSV

Popular

2024 average primary class sizes by school size

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CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "2ddda7f9-004a-49c5-81f0-b8c46c76639a",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: '2ddda7f9-004a-49c5-81f0-b8c46c76639a',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "2ddda7f9-004a-49c5-81f0-b8c46c76639a",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="2ddda7f9-004a-49c5-81f0-b8c46c76639a",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = '2ddda7f9-004a-49c5-81f0-b8c46c76639a',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "2ddda7f9-004a-49c5-81f0-b8c46c76639a",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: '2ddda7f9-004a-49c5-81f0-b8c46c76639a', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "2ddda7f9-004a-49c5-81f0-b8c46c76639a",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="2ddda7f9-004a-49c5-81f0-b8c46c76639a",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='2ddda7f9-004a-49c5-81f0-b8c46c76639a', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=2ddda7f9-004a-49c5-81f0-b8c46c76639a&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=2ddda7f9-004a-49c5-81f0-b8c46c76639a&q=jones

CSV

2023 average primary class sizes by school size

Preview

Download

CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "057f26d1-198d-43d1-b6ca-52c1959f884d",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: '057f26d1-198d-43d1-b6ca-52c1959f884d',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "057f26d1-198d-43d1-b6ca-52c1959f884d",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="057f26d1-198d-43d1-b6ca-52c1959f884d",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = '057f26d1-198d-43d1-b6ca-52c1959f884d',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "057f26d1-198d-43d1-b6ca-52c1959f884d",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: '057f26d1-198d-43d1-b6ca-52c1959f884d', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "057f26d1-198d-43d1-b6ca-52c1959f884d",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="057f26d1-198d-43d1-b6ca-52c1959f884d",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='057f26d1-198d-43d1-b6ca-52c1959f884d', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=057f26d1-198d-43d1-b6ca-52c1959f884d&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=057f26d1-198d-43d1-b6ca-52c1959f884d&q=jones

PDF

Popular

2023 average class size fact sheet

Preview

Download

CSV

2022 average primary class sizes by school size

Preview

Download

CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "dc2c85a2-b6d4-422b-a831-9a49186cc803",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: 'dc2c85a2-b6d4-422b-a831-9a49186cc803',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "dc2c85a2-b6d4-422b-a831-9a49186cc803",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="dc2c85a2-b6d4-422b-a831-9a49186cc803",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = 'dc2c85a2-b6d4-422b-a831-9a49186cc803',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "dc2c85a2-b6d4-422b-a831-9a49186cc803",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: 'dc2c85a2-b6d4-422b-a831-9a49186cc803', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "dc2c85a2-b6d4-422b-a831-9a49186cc803",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="dc2c85a2-b6d4-422b-a831-9a49186cc803",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='dc2c85a2-b6d4-422b-a831-9a49186cc803', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=dc2c85a2-b6d4-422b-a831-9a49186cc803&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=dc2c85a2-b6d4-422b-a831-9a49186cc803&q=jones

PDF

2022 average class size fact sheet

Preview

Download

CSV

2021 average primary class sizes by school size

Preview

Download

CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "f09e737a-290c-45bb-b13d-81f89482b35a",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: 'f09e737a-290c-45bb-b13d-81f89482b35a',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "f09e737a-290c-45bb-b13d-81f89482b35a",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="f09e737a-290c-45bb-b13d-81f89482b35a",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = 'f09e737a-290c-45bb-b13d-81f89482b35a',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "f09e737a-290c-45bb-b13d-81f89482b35a",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: 'f09e737a-290c-45bb-b13d-81f89482b35a', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "f09e737a-290c-45bb-b13d-81f89482b35a",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="f09e737a-290c-45bb-b13d-81f89482b35a",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='f09e737a-290c-45bb-b13d-81f89482b35a', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=f09e737a-290c-45bb-b13d-81f89482b35a&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=f09e737a-290c-45bb-b13d-81f89482b35a&q=jones

PDF

2021 average class size factsheet

Preview

Download

CSV

2020 average primary class sizes by school size

Preview

Download

CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "c304d3aa-64dc-4faf-be0b-be8414c585b5",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: 'c304d3aa-64dc-4faf-be0b-be8414c585b5',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "c304d3aa-64dc-4faf-be0b-be8414c585b5",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="c304d3aa-64dc-4faf-be0b-be8414c585b5",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = 'c304d3aa-64dc-4faf-be0b-be8414c585b5',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "c304d3aa-64dc-4faf-be0b-be8414c585b5",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: 'c304d3aa-64dc-4faf-be0b-be8414c585b5', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "c304d3aa-64dc-4faf-be0b-be8414c585b5",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="c304d3aa-64dc-4faf-be0b-be8414c585b5",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='c304d3aa-64dc-4faf-be0b-be8414c585b5', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=c304d3aa-64dc-4faf-be0b-be8414c585b5&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=c304d3aa-64dc-4faf-be0b-be8414c585b5&q=jones

PDF

2020 average class size factsheet

Preview

Download

CSV

2019 Average primary class sizes by school size

Preview

Download

CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "5adb69f5-e10d-4983-92f8-b04a5ae6c834",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: '5adb69f5-e10d-4983-92f8-b04a5ae6c834',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "5adb69f5-e10d-4983-92f8-b04a5ae6c834",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="5adb69f5-e10d-4983-92f8-b04a5ae6c834",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = '5adb69f5-e10d-4983-92f8-b04a5ae6c834',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "5adb69f5-e10d-4983-92f8-b04a5ae6c834",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: '5adb69f5-e10d-4983-92f8-b04a5ae6c834', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "5adb69f5-e10d-4983-92f8-b04a5ae6c834",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="5adb69f5-e10d-4983-92f8-b04a5ae6c834",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='5adb69f5-e10d-4983-92f8-b04a5ae6c834', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=5adb69f5-e10d-4983-92f8-b04a5ae6c834&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=5adb69f5-e10d-4983-92f8-b04a5ae6c834&q=jones

PDF

2019 average class size factsheet

Preview

Download

CSV

2018 average primary class size by school size

Preview

Download

CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "08ffe952-9162-4159-8880-8bcf891014a1",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: '08ffe952-9162-4159-8880-8bcf891014a1',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "08ffe952-9162-4159-8880-8bcf891014a1",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="08ffe952-9162-4159-8880-8bcf891014a1",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = '08ffe952-9162-4159-8880-8bcf891014a1',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "08ffe952-9162-4159-8880-8bcf891014a1",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: '08ffe952-9162-4159-8880-8bcf891014a1', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "08ffe952-9162-4159-8880-8bcf891014a1",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="08ffe952-9162-4159-8880-8bcf891014a1",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='08ffe952-9162-4159-8880-8bcf891014a1', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=08ffe952-9162-4159-8880-8bcf891014a1&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=08ffe952-9162-4159-8880-8bcf891014a1&q=jones

PDF

2018 average class size factsheet

Preview

Download

CSV

2017 average primary class sizes by school size

Preview

Download

CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "ef377352-a584-4599-bab8-9354048f5b6f",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: 'ef377352-a584-4599-bab8-9354048f5b6f',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "ef377352-a584-4599-bab8-9354048f5b6f",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="ef377352-a584-4599-bab8-9354048f5b6f",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = 'ef377352-a584-4599-bab8-9354048f5b6f',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "ef377352-a584-4599-bab8-9354048f5b6f",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: 'ef377352-a584-4599-bab8-9354048f5b6f', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "ef377352-a584-4599-bab8-9354048f5b6f",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="ef377352-a584-4599-bab8-9354048f5b6f",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='ef377352-a584-4599-bab8-9354048f5b6f', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=ef377352-a584-4599-bab8-9354048f5b6f&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=ef377352-a584-4599-bab8-9354048f5b6f&q=jones

CSV

2009 - 2016 average primary class sizes by school size

Preview

Download

CKAN Data API

Access resource data via a web API with powerful query support. Further information in the main CKAN Data API and DataStore documentation.

Code examples:

curl JavaScript PowerShell Python R

Querying

Get 5 results containing "jones" in any field:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
  -H"Authorization:$API_TOKEN" -d '
{
  "resource_id": "5b1aafdc-b0c0-4af2-98ab-135546516c5b",
  "limit": 5,
  "q": "jones"
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({
        resource_id: '5b1aafdc-b0c0-4af2-98ab-135546516c5b',
        limit: 5,
        q: 'jones'
    })
})
await resp.json()

$json = @'
{
  "resource_id": "5b1aafdc-b0c0-4af2-98ab-135546516c5b",
  "limit": 5,
  "q": "jones"
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

(using the ckanapi client library)

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="5b1aafdc-b0c0-4af2-98ab-135546516c5b",
    limit=5,
    q="jones",
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id = '5b1aafdc-b0c0-4af2-98ab-135546516c5b',
        limit = 5,
        q = 'jones'))
    req_perform %>% 
    resp_body_json

Get results with either "watershed" or "survey" as subject and "active" as its stage:

curl https://data.nsw.gov.au/data/api/action/datastore_search \
-H"Authorization:$API_TOKEN" -d '
{
"resource_id": "5b1aafdc-b0c0-4af2-98ab-135546516c5b",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}'

const resp = await fetch(`https://data.nsw.gov.au/data/api/action/datastore_search`, {
    method: 'POST',
    headers: {
        'content-type': 'application/json',
        authorization: API_TOKEN
    },
    body: JSON.stringify({resource_id: '5b1aafdc-b0c0-4af2-98ab-135546516c5b', filters: {
        subject: ['watershed', 'survey'],
        stage: 'active'
    }})})
await resp.json()

$json = @'
{
  "resource_id": "5b1aafdc-b0c0-4af2-98ab-135546516c5b",
  "filters": {
    "subject": ["watershed", "survey"],
    "stage": "active"
  }
}
'@
$response = Invoke-RestMethod https://data.nsw.gov.au/data/api/action/datastore_search`
  -Method Post -Body $json -Headers @{"Authorization"="$API_TOKEN"}
$response.result.records

from ckanapi import RemoteCKAN

rc = RemoteCKAN('https://data.nsw.gov.au/data/', apikey=API_TOKEN)
result = rc.action.datastore_search(
    resource_id="5b1aafdc-b0c0-4af2-98ab-135546516c5b",
    filters={
      "subject": ["watershed", "survey"],
      "stage": "active",
    },
)
print(result['records'])

library(httr2)

req <- request("https://data.nsw.gov.au/data/api/action/datastore_search")
result <- req %>% 
    req_headers(Authorization = API_TOKEN) %>% 
    req_body_json(list(
        resource_id='5b1aafdc-b0c0-4af2-98ab-135546516c5b', 
        filters = list(
            subject = list("watershed", "survey"), 
            stage = "active")))
    req_perform %>% 
    resp_body_json

Using the API with this Web Browser

Some API endpoints may be accessed using a GET query string.

Query example (first 5 results)

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=5b1aafdc-b0c0-4af2-98ab-135546516c5b&limit=5

Query example (results containing 'jones')

https://data.nsw.gov.au/data/api/action/datastore_search?resource_id=5b1aafdc-b0c0-4af2-98ab-135546516c5b&q=jones

Data Preview: 2024 average primary class sizes by school size

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Additional Information

Field	Value
Title	Average government primary school class sizes by school size (2009-2024)
Date Published	18/09/2017
Last Updated	14/10/2025
Publisher/Agency	NSW Department of Education
Licence	Creative Commons Attribution
Update Frequency	Annually
Contact Point	NSW Department of Education open.data@det.nsw.edu.au
Temporal Coverage	01/01/2009 - 31/12/2024
Geospatial Coverage
Data Portal	Data.NSW