Tama is a city located in the western portion of the Tokyo Metropolis, Japan. As of 11 March 2021, the city had an estimated population of …Tama is a city located in the western portion of the Tokyo Metropolis, Japan. As of 11 March 2021, the city had an estimated population of 148,285 in 73,167 households, and a population density of 7,100 inhabitants per square kilometre. The total area of the city was 21.01 square kilometres.