Higashikurume is a city located in the western portion of Tokyo Metropolis, Japan. As of 1 April 2021, the city had an estimated population of 117,020, and a population density of 9100 persons per km². The total area of the city was 12.88 square kilometres (4.97 sq mi).

Kodaira is a city located in the western portion of Tokyo Prefecture, Japan. As of 1 April 2021, the city had an estimated population of 195,207 in 93,654 households, and a population density of 9500 persons per km2. The total area of the city was 20.51 square kilometres (7.92 sq mi).