Thornton Bay is a suburb which lies within the Territorial Authority of Coromandel, one of 39 residential suburbs which form the wider region. Thornton Bay is the 15th largest suburb of Coromandel in terms of the total number of residential housing stock. Thornton Bay provides a range of housing stock, with the earliest residential housing recorded in the area constructed between 1910 - 1919. The majority of the residential housing stock in the locality was constructed between 1950 - 1959. Residential housing stock in Thornton Bay is made up of approximately 83% residential housing , 2% residential investment housing and 14% lifestyle properties.