Mingo is a city in Jasper County, Iowa, United States. The population was 302 at the time of the 2020 census. Mingo was platted in 1884. It is n…Mingo is a city in Jasper County, Iowa, United States. The population was 302 at the time of the 2020 census. Mingo was platted in 1884. It is named from Mingo, Ohio, a city name derived from the historic Iroquoian Mingo people.