Jasper County
County in Iowa
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. Wikipedia
Cities: Newton, Colfax, Prairie City, and more
County seat: Newton
Population: 37,938 (2022)
Area: 733 mi²
Congressional district: 2nd