Land for sale in Sedgwick County recently totaled $12 million and approximately 3,000 acres. Sedgwick County ranks 60th out of 64 counties in the state for the total number of acres of land currently advertised for sale. Julesburg had the most land for sale. Sedgwick County has a large agricultural economy, with 226 farms recorded in the county during the latest U.S. Census. Farming activities in Sedgwick County generate annual revenues of $5 million, most of which is from crops. Sedgwick County is the 57th largest county (549 square miles) in Colorado. It's located in the Northeast Colorado region of Colorado.