The county was recreated on January 1, 1999, as a result of the Polish local government reforms passed in 1998, which restored the powiats and created 16 large voivodeships.

The county was created on January 1, 1999, as a result of the Polish local government reforms passed in 1998.

As a result of the 1989 local government reforms, Heathcote County was amalgamated with and became part of Christchurch City Council.

It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998.

As a result of the 1989 local government reforms, on 1 November 1989 Christchurch City Council took over the functions of the former Christchurch City Council, Heathcote County Council, Riccarton Borough Council, Waimairi District Council, part of Paparua County Council, and the Christchurch Drainage Board.

It originally existed from 1956 until the abolition of the powiats in 1975, but was re-created on January 1, 1999, as a result of the Polish local government reforms passed in 1998, which reintroduced the powiats and created 16 large voivodeships.