This is a list of settlements in Northern Ireland by population. The fifty largest settlements are listed. This list has been compiled from data published by the Northern Ireland Statistics and Research Agency (NISRA), based on the 2001 census.[1] Settlements with city status are shown in bold.
| # | Settlement | District | County | Population |
|---|---|---|---|---|
| 1 | Belfast | Belfast | County Antrim County Down |
276,459 |
| 2 | Derry | Derry | County Londonderry | 83,699 |
| 3 | Lisburn | Lisburn | County Antrim County Down |
71,465 |
| 4 | Newtownabbey | Newtownabbey | County Antrim | 62,056 |
| 5 | Bangor | North Down | County Down | 58,388 |
| 6 | Craigavon urban area (includes Craigavon, Lurgan, Portadown, Bleary) |
Craigavon | County Armagh | 57,685 |
| 7 | Castlereagh urban area (includes Dundonald and part of Belfast) |
Castlereagh | County Down | 54,990 |
| 8 | Ballymena (including Gracehill) |
Ballymena | County Antrim | 28,717 |
| 9 | Newtownards | Ards | County Down | 27,821 |
| 10 | Newry (including Bessbrook) |
Newry and Mourne | County Armagh County Down |
27,433 |
| 11 | Carrickfergus | Carrickfergus | County Antrim | 27,201 |
| 12 | Coleraine | Coleraine | County Londonderry | 24,089 |
| 13 | Antrim | Antrim | County Antrim | 20,001 |
| 14 | Omagh | Omagh | County Tyrone | 19,910 |
| 15 | Larne | Larne | County Antrim | 18,228 |
| 16 | Banbridge | Banbridge | County Down | 14,744 |
| 17 | Armagh | Armagh | County Armagh | 14,590 |
| 18 | Enniskillen | Fermanagh | County Fermanagh | 13,599 |
| 19 | Strabane | Strabane | County Tyrone | 13,456 |
| 20 | Limavady | Limavady | County Londonderry | 12,135 |
| 21 | Holywood | North Down | County Down | 12,037 |
| 22 | Dungannon (including Moygashel) |
Dungannon | County Tyrone | 11,139 |
| 23 | Cookstown | Cookstown | County Tyrone | 10,646 |
| 24 | Downpatrick | Down | County Down | 10,316 |
| 25 | Ballymoney | Ballymoney | County Antrim | 9,021 |
| 26 | Comber | Ards | County Down | 8,933 |
| 27 | Ballyclare | Newtownabbey | County Antrim | 8,770 |
| 28 | Magherafelt | Magherafelt | County Londonderry | 8,372 |
| 29 | Portstewart | Coleraine | County Londonderry | 7,803 |
| 30 | Newcastle | Down | County Down | 7,444 |
| 31 | Warrenpoint | Newry and Mourne | County Down | 7,000 |
| 32 | Carryduff | Castlereagh | County Down | 6,595 |
| 33 | Donaghadee | Ards | County Down | 6,470 |
| 34 | Portrush | Coleraine | County Antrim | 6,372 |
| 35 | Kilkeel | Newry and Mourne | County Down | 6,338 |
| 36 | Ballynahinch | Down | County Down | 5,364 |
| 37 | Ballycastle | Moyle | County Antrim | 5,089 |
| 38 | Greenisland | Carrickfergus | County Antrim | 5,050 |
| 39 | Dromore | Banbridge | County Down | 4,968 |
| 40 | Randalstown | Antrim | County Antrim | 4,956 |
| 41 | Coalisland | Dungannon | County Tyrone | 4,917 |
| 42 | Crumlin | Antrim | County Antrim | 4,259 |
| 43 | Maghera | Magherafelt | County Londonderry | 3,711 |
| 44 | Whitehead | Carrickfergus | County Antrim | 3,702 |
| 45 | Moira | Lisburn | County Down | 3,682 |
| 46 | Hillsborough | Lisburn | County Down | 3,400 |
| 47 | Eglinton | Derry | County Londonderry | 3,165 |
| 48 | Ahoghill | Ballymena | County Antrim | 3,055 |
| 49 | Tandragee | Armagh | County Armagh | 3,050 |
| 50 | Dungiven | Limavady | County Londonderry | 2,993 |