Lisburn Irish: Lios na gCearrbhach[1] Irish Linen Museum and Christ Church Cathedral Lisburn Lisburn shown within Northern Ireland Population 120,465 surrounding areas • Belfast 8 miles District Lisburn and Castlereagh County County Antrim County Down Country Northern Ireland Sovereign state United Kingdom Post town LISBURN Postcode district BT27 BT28 Dialling code 028 Police Northern Ireland Fire Northern Ireland Ambulance Northern Ireland EU Parliament Northern Ireland UK Parliament Lagan Valley NI Assembly Lagan Valley Website www.lisburn.gov.uk