The constituency sent one MP to the House of Commons of Northern Ireland from 1929 until the Parliament was temporarily suspended in 1972, and then formally abolished in 1973.

In terms of the then local government areas the constituency in 1929 comprised parts of the rural districts of Antrim, Ballymena, Belfast and Lisburn.

After boundary changes in 1969, the constituency included parts of the rural districts of Antrim and Lisburn.

From 1969 to 1973, the division bordered Bannside to the north-west, Larne to the north-east, Carrick and Newtownabbey to the east, Belfast and Larkfield to the south-east, South Antrim to the south and Lough Neagh to the west.

Antrim was only represented by two MPs, both members of the Ulster Unionist Party.