Land for sale in Caldwell County, Missouri, recently totaled approximately $16 million and 2,000 acres. Caldwell County ranks 89th out of 115 counties in the Gateway State for the total acreage of land currently advertised for sale. Among cities in Caldwell County with farms, ranches, and rural real estate 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 largest county (429 square miles) in Missouri. It's located in the Northwest Missouri region of the state.