Local authority · W06000015

Cardiff

In use

Cardiff is a local authority in Wales, published in boundary releases since December 2011.

The May 2026 boundary, generalised to about 100 m.

Code
W06000015
Kind
Local authority
Area
142 km²
Population
383,919Mid-2024 estimate
In use
2011 to now

Where it sits

Ceremonial countySouth Glamorgan
Grouping of councilsCardiff, Cardiff and The Valleys, South East Wales, South Wales
CountryWales

What it contains

218 LSOAs, as of the December 2021 boundaries

36 parishes, as of the May 2026 boundaries

  • Adamsdown
  • Butetown
  • Caerau
  • Canton
  • Castle
  • Cathays
  • Cyncoed
  • Ely
  • Fairwater
  • Gabalfa
  • Grangetown
  • Heath
  • Lisvane
  • Llandaff
  • Llandaff North
  • Llanedeyrn
  • Llanishen
  • Llanrumney
  • Old St. Mellons
  • Pentwyn
  • Pentyrch
  • Penylan
  • Pontcanna
  • Pontprennau
  • Radyr and Morganstown
  • Rhiwbina
  • Riverside
  • Roath
  • Rumney
  • Splott
  • St. Fagans
  • Thornhill
  • Tongwynlais
  • Tremorfa
  • Trowbridge
  • Whitchurch

Neighbours

4 local authorities share a border with Cardiff, longest border first.

Data published for it

25 of the Atlas's datasets publish figures for Cardiff itself.

Ask the API

Everything on this page comes from the UK Data Atlas API's geography resolver. These requests return it, for the May 2026 release.

  • The areaDocs
    GET/v1/areas/localAuthority/2026-05-uk-bgc/W06000015
  • Its boundaryDocs
    GET/v1/areas/localAuthority/2026-05-uk-bgc/W06000015/geometry?tier=medium
  • Its historyDocs
    GET/v1/areas/localAuthority/2026-05-uk-bgc/W06000015/history
  • What it sits withinDocs
    GET/v1/areas/localAuthority/2026-05-uk-bgc/W06000015/parents
  • What it containsDocs
    GET/v1/areas/localAuthority/2026-05-uk-bgc/W06000015/children
  • Its neighboursDocs
    GET/v1/areas/localAuthority/2026-05-uk-bgc/W06000015/neighbours
  • What you can ask about itDocs
    GET/v1/areas/localAuthority/2026-05-uk-bgc/W06000015?include=capabilities