How old is your council area?

382 council areas, coloured by their creating Act or Order year. Stronger colours separate the years; click an area for its age, operation year and statutory source.

Upper and single tier (218): 21 counties plus 197 single-tier areas, including unitary authorities, London/metropolitan boroughs, City of London, Scilly, Scotland, Wales and Northern Ireland. Lower tier (164): English districts within counties. NI councils are single-tier but do not have all the functions of English county councils.

Use the checkboxes below. Both folders start visible; turn off lower-tier districts to see a complete UK-wide upper/single-tier view and turn off the upper/single-tier folder to see the districts. No combined authorities or parishes.

Age means council area, not organisation or latest boundary revision. City of London stays grey: no single statutory birth year. Boundaries are generalised, not for legal use.

Powered by Mapit, May 2026 edition. Contains OS, NISRA and National Statistics data, Crown copyright and database rights, under the OGL. Statutory sources are linked in each popup. Revised 3 November 2026.