There was a combined $16 million of farms, ranches, and rural real estate for sale in Missouri's Caldwell County recently on Land.com. The total acreage of all Caldwell County land and rural real estate for sale was 2,000 acres. Caldwell County ranks 91st in the Gateway State for the total number of acres of land currently advertised for sale. Hamilton had the most land for sale. Its economy is defined as agricultural, with 1,035 farms recorded in the county during the most recent U.S. Census. Farming activities in Caldwell County generate annual revenues of $9 million, most of which is from crops. Caldwell County is the 102nd biggest county (429 square miles) in Missouri. It's located in the Northwest Missouri region of the state.