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Name: UK Demographics: population estimates and Census ethnic group counts by local authority
License: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

Published figures for 318 local authorities, one row per figure, in CSV. Every row names its source table, and sources.csv gives the publisher, edition, file name and SHA-256 hash of each workbook. These files hold observed figures only. The projections on place pages are not included.

Files

places.csv: every place in one file.
sources.csv: one row per source table.
One file per place, listed below.

Contains public sector information licensed under the Open Government Licence v3.0. Cite the original ONS table; the source columns say which.

Columns

area_code: ONS local authority code.
area_name: Council name as used on this site.
measure: What the value counts: population_estimate, population_estimate_ci95, population_by_age, median_age, components_of_change, census_usual_residents or census_ethnic_group.
category: The group, band or component within the measure.
period: Reference date: mid-year (30 June), a year to mid-year, or the Census.
value: The figure as published, or a sum of published cells where the sources file says so.
unit: persons or years.
source_id: Key into sources.csv: publisher, table, edition, file and its SHA-256.
source_locator: Sheet and row of the source workbook, the Census area code, or the 2011 districts summed for a council formed since.

Sources

ons-mye4: Office for National Statistics, Mid-Year Population Estimates, England and Wales, June 2025, table MYE4, published 29 July 2026. Estimated usual resident population at 30 June, every year from mid-2011. Mid-2022 to mid-2024 are the July 2026 revisions. Source
ons-mye0: Office for National Statistics, Mid-Year Population Estimates, England and Wales, June 2025, table MYE0, published 29 July 2026. 95% research-based confidence interval for mid-2025, as ONS labels it. Source
ons-mye2: Office for National Statistics, Mid-Year Population Estimates, England and Wales, June 2025, table MYE2 - Persons, published 29 July 2026. Age bands are sums of single-year-of-age cells: 0 to 17, 18 to 64, and 65 to 89 plus 90+. Source
ons-mye3: Office for National Statistics, Mid-Year Population Estimates, England and Wales, June 2025, table MYE3, published 29 July 2026. Components of change, mid-2024 to mid-2025. Source
ons-mye6: Office for National Statistics, Mid-Year Population Estimates, England and Wales, June 2025, table MYE6, published 29 July 2026. Median age at mid-2025. Source
census-2011-ks201ew: Office for National Statistics, Census 2011, table KS201EW Ethnic group, published 11 December 2012. Six groups summed from the published categories by the group named before the colon in each label: White British; White Other (Irish, Gypsy or Irish Traveller, Roma in 2021, any other White); Asian; Black; Mixed (all four Mixed categories, including both Mixed White and Black ones); Other (Arab and any other ethnic group). Councils formed since 2011 are the exact sum of the 2011 districts they absorbed; the row's locator lists them. Source
census-2021-ts021: Office for National Statistics, Census 2021, table TS021 Ethnic group, published 29 November 2022. Six groups summed from the published categories by the group named before the colon in each label: White British; White Other (Irish, Gypsy or Irish Traveller, Roma in 2021, any other White); Asian; Black; Mixed (all four Mixed categories, including both Mixed White and Black ones); Other (Arab and any other ethnic group). Census 2021 counts are as published, after ONS's statistical disclosure control. Source

Pages, regions, and place profiles

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Files

Columns

Sources

By place