Takamatsu is a capital city located in Kagawa Prefecture, Japan. As of 1 November 2022, the city had an estimated population of 414,134 in 190,120 households and a population density of 1,100 persons per km2. The total area of the city is 375.41 square kilometres (144.95 sq mi). It is the capital city of the prefecture.

Kagawa Prefecture is a prefecture of Japan located on the island of Shikoku. Kagawa Prefecture has a population of 949,358 and is the smallest prefecture by geographic area at 1,877 square kilometres (725 sq mi). Kagawa Prefecture borders Ehime Prefecture to the southwest and Tokushima Prefecture to the south.