UK public data, by local authority district
StatsMapped

All 11 local authorities in Northern Ireland ranked by population — Belfast largest at 352,390, 2024 estimates. Year-on-year change for every area.

Why the caveats matter

Every figure carries the publisher's own caveats. Where a statistic is published for a wider area than the one you clicked, or where the publisher itself flags it as unreliable, the page says so rather than quietly rounding it off.

The UK's four nations publish separately, so some figures stop at a border: house sale prices cover England and Wales, road collisions Great Britain. Pupil absence is published for England, but not every English district individually — some are reported only as part of their wider county. An area with fewer datasets isn't missing data — either its nation publishes that statistic through a different body, or (pupil absence only) its own district isn't reported separately.

Rankings →

Northern Ireland

11 local authorities make up Northern Ireland. Belfast is the largest, at 352,390; Fermanagh and Omagh the smallest, at 117,687. Figures are mid-year population estimates as of 2024, published by Office for National Statistics, Population Estimates (via Nomis).

Population, every local authority in Northern Ireland ranked
RankLocal authorityPopulationYear on year
1Belfast352,390+0.5%
2Armagh City, Banbridge and Craigavon222,511+0.3%
3Newry, Mourne and Down183,115-0.2%
4Ards and North Down165,415+0.3%
5Mid Ulster152,718+0.5%
6Derry City and Strabane152,383+1.0%
7Lisburn and Castlereagh151,669+0.6%
8Antrim and Newtownabbey148,100+0.5%
9Causeway Coast and Glens141,954+0.2%
10Mid and East Antrim139,913+0.1%
11Fermanagh and Omagh117,687+0.4%

Change compares each area's latest estimate with the previous year's from the same publisher.

See every UK local authority ranked by population

Other UK nations: England · Scotland · Wales

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