Under the Local Government (Waikato Region) Reorganisation Order of 1989, nearly all of the county was merged with the boroughs of Huntly, Ngāruawāhia, most of Raglan County Council, and a small part of Waipa County Council, to form Waikato District Council.
[1] The council first met on 9 January 1877 at the Court House in Cambridge.
[3] The former County Council office at 455 Grey Street in Hamilton East opened in 1910.
[4] It is protected by a Category B listing in Hamilton City's District Plan.
[5] It was replaced by new offices to the rear of it, which had a foundation stone dated 4 February 1971 and were first used for a meeting on 21 March 1972.