Car availability datasets
Measures
Each measure is one kind of value you can request, using its id.
| Measure | Unit | Combining areas |
|---|---|---|
Households with no car or vancar-availability-none | households | Adds up |
Households with one car or vancar-availability-one | households | Adds up |
Households with two cars or vanscar-availability-two | households | Adds up |
Households with three or more cars or vanscar-availability-three-or-more | households | Adds up |
Householdscar-availability-total | households | Adds up |
“Adds up” means you can total it over areas or convert it to other areas. See Measures and periods for why some can't be combined.
Areas and years
Request each of these with its geography and code year as geography and boundaryYear.
| Areas | Code year | Periods | Covers | Records |
|---|---|---|---|---|
| Local authorities | 2023 | 2021 | England and Wales | 318 |
Things to know
- Households, not people. A household with four residents and one car counts once.
- The top category is open-ended, so the table gives no count of vehicles.
- The census reports on 2021 boundaries. The four authorities created in April 2023 are compiled by summing their predecessors, which is exact for a count, and the districts they replaced are not served, so no resident is counted twice. The partition is on April 2023 codes, which Barnsley and Sheffield changed in 2025.
Corrections and improvements
These reviewed changes apply to what the API serves for this data. The publisher's source files are not changed; when a code correction applies, the served record retains the publisher's code as sourceAreaCode.
| Change | What the API serves | Applies when |
|---|---|---|
| Opt-in canonical measure-unit presentation | On the explicit canonical request, each numeric value and any publisher-supplied interval bound is multiplied by the measure's declared scale; the response names the resulting unit and calculation. | GET /v1/data/{measure-id}?units=canonical |
curl "https://api.ukdataatlas.com/v1/corrections?measure=car-availability-none"/correctionsList reviewed correctionsRequest it
Get the first page of car-availability-none for local authorities:
curl "https://api.ukdataatlas.com/v1/data/car-availability-none?period=2021&geography=localAuthority&boundaryYear=2023&limit=5"Read the measure's full definition, including every period it's published for:
curl "https://api.ukdataatlas.com/v1/measures/car-availability-none"/data/{measure-id}Get observationsget/data/{measure-id}/seriesGet a time seriesSource and licence
| Dataset | Publisher | Licence |
|---|---|---|
| Car Availability | Office for National Statistics | Open Government Licence v3.0 |
Using this data in something you publish? Get attribution text with measure=car-availability-none returns the credit line to include.
Downloads
Download complete publisher-observation files instead of paging through the API. Each file has a stable hash and covers one measure, period set and source geography. Any reviewed served code correction is documented and retains its publisher code on the affected record. The source and licence information above applies to these files too; preserve the attribution and note any cleaning or reformatting when you redistribute one.
| Measure | Coverage | Records | Download |
|---|---|---|---|
Households with no car or vancar-availability-none | Local authorities · 2021 · code year 2023 | 318 | JSON |
Households with one car or vancar-availability-one | Local authorities · 2021 · code year 2023 | 318 | JSON |
Households with three or more cars or vanscar-availability-three-or-more | Local authorities · 2021 · code year 2023 | 318 | JSON |
Householdscar-availability-total | Local authorities · 2021 · code year 2023 | 318 | JSON |
Households with two cars or vanscar-availability-two | Local authorities · 2021 · code year 2023 | 318 | JSON |