Tokyo Metropolis Kodaira has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall.

[2] Per Japanese census data,[3] the population of Kodaira increased rapidly in the 1950s and 1960s and has continued to grow at a slower rate in the decades since.

In the post-Meiji Restoration cadastral reform of July 22, 1878, the area became part of Kitatama District in Kanagawa Prefecture.

Kodaira has a mayor-council form of government with a directly elected mayor and a unicameral city council of 28 members.

In terms of national politics, the city is part of Tokyo 18th district of the lower house of the Diet of Japan.