Inagi is a city situated in the western portion of the Tokyo Metropolis in Japan. It covers a total land area of 17.97 square kilometres (6.94 sq mi) and is geographically positioned at coordinates 35°38′17″N, 139°30′16″E.
As of July 1, 2026, the city had an estimated population of 94,409 residents living in 44,606 households. This results in a population density of approximately 5,254 persons per square kilometre.