Portadown is a town in County Armagh, Northern Ireland. The town sits on the River Bann in the north of the county, about 24 miles southwest of Belfast. It is in the Armagh City, Banbridge and Craigavon Borough Council area and had a population of about 32,000 at the 2021 Census. For some purposes, Portadown is treated as part of the "Craigavon U…Portadown is a town in County Armagh, Northern Ireland. The town sits on the River Bann in the north of the county, about 24 miles southwest of Belfast. It is in the Armagh City, Banbridge and Craigavon Borough Council area and had a population of about 32,000 at the 2021 Census. For some purposes, Portadown is treated as part of the "Craigavon Urban Area", alongside Craigavon and Lurgan.