Antrim (, ) is a town and civil parish in County Antrim in the northeast of Northern Ireland, on the banks of the Six Mile Water, half a mile northeast of Lough Neagh. It had a population of 20,001 people in the 2001 Census. It is the county town of County Antrim and was the administrative centre of Antrim Borough Council. It is 22 miles (35 km) northwest of Belfast by rail.