The value of all farms, ranches, and rural real estate for sale in Hamilton County recently was around $8 million, representing a combined 42 acres of land for sale in Hamilton County. Hamilton County ranks 67th in the Hawkeye State for the combined amount of land currently advertised for sale. Webster City featured the most land for sale. Hamilton County has a large agricultural economy, with 761 farms recorded in the county during the latest U.S. Census. Farming activities in Hamilton County generate annual revenues of $25 million, the majority of which comes from livestock products. Hamilton County is the 38th biggest county (577 square miles) in Iowa. It's located in the Central Iowa region of the state.