Jasper County is a county in the U.S. state of Iowa. As of the 2010 census, the population was 36,842. The county seat is Newton. The county was founded in 1846 and is named after Sergeant William Jasper, an American Revolutionary War hero.
Jasper County is a county in the U.S. state of Iowa. As of the 2010 census, the population was 36,842. The county seat is Newton. The county was founded in 1846 and is named after Sergeant William Jasper, an American Revolutionary War hero.