Ashikaga is a city located in Tochigi Prefecture of Honshu, Japan. As of 1 June 2023, the city had an estimated population of 140,036, in 62,123 households and a population density of 788 persons per km2. The total area of the city is 177.76 square kilometres (68.63 sq mi).

Ōta is a city located in Gunma Prefecture, Japan. As of 31 August 2020, the city had an estimated population of 224,358 in 109,541 households, and a population density of 1300 persons per km2. The total area of the city is 60.97 square kilometres (23.54 sq mi).