Land for sale in Missouri's Caldwell County recently totaled nearly $16 million and almost 2,000 acres. Caldwell County ranks 90th in the Show Me State for the total number of acres of land currently advertised for sale. Of all locations in Caldwell County with land for sale, Hamilton featured the most land for sale. Caldwell County has a large agricultural economy, with 1,035 farms recorded in the county during the latest U.S. Census. Farming activities in Caldwell County generate annual revenues of $9 million, most of which is from crops. Caldwell County is Missouri's 102nd largest county (429 square miles). It's located in the Northwest Missouri region of Missouri.