The total value of land and rural real estate for sale in Humboldt County, Iowa, recently on Land.com was around $7 million. This represents 1,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Humboldt County. Humboldt County ranks 92nd in the state for the combined amount of land currently advertised for sale. Among cities in Humboldt County with land and rural real estate for sale, Humboldt had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Humboldt County. Humboldt County is Iowa's 85th biggest county (435 square miles). It's located in the Western Iowa region of the state.