Mobara is a city located in Chiba Prefecture. As of 1 December 2020, the city had an estimated population of 88,330 in 40,869 households and a population density of 880 persons per km2. The total area of the city is 99.92 square kilometres (38.58 sq mi)

Midori Ward is one of the six wards of the city of Chiba in Chiba Prefecture, Japan. As of February 2016, the ward had an estimated population of 127,368 and a population density of 1920 persons per km2. The total area was 66.25 square kilometres (25.58 sq mi).