A total of nearly 1,000 acres were listed for sale in Jasper County, Iowa, recently, representing a combined $47 million in Jasper County farms and ranches for sale. Jasper County ranks 10th out of 99 counties in the Hawkeye State for the total number of acres of land currently advertised for sale. Among cities in Jasper County with farms and ranches for sale, Newton had the most land for sale. Jasper County is one of the ten largest counties in Iowa (732 square miles). It's located in the Central Iowa region of the state.