Wanderlust World Wanderlust World Based on 2021 Census (Northern Ireland Statistics and Research Agency) and recent estimates:
| Rank | City | Population | Notes |
|---|---|---|---|
| 1 | Belfast | 345,000 | Capital; metro ~670,000 |
| 2 | Derry/Londonderry | 110,000 | Second city; historic walls, Peace Bridge |
| 3 | Lisburn | 78,923 | SW of Belfast; city status 2002 |
| 4 | Newtownabbey | 65,001 | North Belfast commuter town; borough |
| 5 | Bangor | 61,000 | Coastal, Belfast Lough; commuter/resort |
| 6 | Craigavon | 58,000 | Planned "new city" (Portadown/Lurgan) |
| 7 | Newry | 27,000 | Near border; historic canal, cathedral |
| 8 | Carrickfergus | 27,000 | Medieval castle, Belfast Lough |