Prairie City is a city in Jasper County, Iowa, United States. The population was 1,700 at the time of the 2020 census. It is twenty-two miles east of Des Moines.

Jasper County is a county in the U.S. state of Iowa. As of the 2020 census, the population was 37,813. The county seat is Newton. The county was organized in 1846 and is named after Sergeant William Jasper, a Revolutionary War hero.