Northern Ireland is part of the European Union which means you can smoothly exchange your BTC to EUR, or EUR to BTC using our platform. To Buy Bitcoin, you can use Bank Transfer (SEPA Transfer).
It doesn't matter in which city you live - Belfast, Ballymena, Coleraine, Craigavon, Derry, Dungannon, Lisburn, Newry or other location.
There is only one thing. Your bank account is probably with pound sterling (GBP). With every payment in EUR, you'll need to make an internal exchange (GBP/EUR) to make the transfer. Alternatively, you can use a 3rd party service (if you don't have EUR account) for money transfer with SEPA (which may have lower interbank fees).