Land for sale in Colusa County recently totaled around $88 million and nearly 5,000 acres. Colusa County ranks 55th in the El Dorado State for the total number of acres of land currently advertised for sale. Of all locations in Colusa County with land for sale, Colusa featured the most land for sale. Agriculture and farming drives the Colusa County economy, with 782 farms recorded in the county during the U.S. Census in 2012. Farming activities in Colusa County generate annual revenues of $21 million, most of which is from crops. Colusa County is California's 40th biggest county (1,156 square miles). It's located in the Central Valley California region of California.