Map of Belfast, United Kingdom

Belfast is the administrative centre of Northern Ireland, United Kingdom, with a population of about 348,005. It lies at 54.5968°N, 5.9254°W. Belfast is about 518 km (322 mi) northwest of London, the capital. The nearest city on our map is Castlereagh, 4 km to the southeast.

Belfast at a glance

Where is Belfast?

• The 13th largest city in United Kingdom by recorded population.
• The largest city in Northern Ireland on this site.
• Located in the Northern and Western hemispheres.
• Daylight ranges from about 7 h 15 min on the shortest day to 17 h 17 min on the longest day (around 21 December and 21 June).

Cities near Belfast

• Castlereagh — 4 km southeast
• Newtownabbey — 7 km north
• Lisburn — 11 km southwest
• Bangor — 18 km northeast
• Craigavon — 34 km southwest
• Dundalk — 74 km southwest, Ireland
• Peel — 90 km southeast, Isle of Man
• Port Erin — 95 km southeast, Isle of Man
• Castletown — 101 km southeast, Isle of Man
• Drogheda — 101 km south, Ireland

Largest cities in Northern Ireland

• Derry — 83,652
• Lisburn — 77,506
• Newtownabbey — 63,860
• Bangor — 61,011
• Craigavon — 59,236
• Castlereagh — 56,679

Largest cities in United Kingdom

• London — 8,961,989
• Birmingham — 1,157,603
• Glasgow — 626,410
• Manchester — 568,996
• Sheffield — 556,500
• Leeds — 536,280
• Edinburgh — 514,990
• Liverpool — 496,770
• Bristol — 479,024
• Cardiff — 372,089

Map of United Kingdom and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.