Land for sale in Kossuth County, Iowa, recently totaled almost $8 million and around 1,000 acres. Kossuth County ranks 67th out of 99 counties in the Cyclone State for the combined amount of land currently advertised for sale. Algona featured the most land for sale. Agriculture and farming drives the Kossuth County economy, with 1,349 farms recorded in the county during the U.S. Census in 2012. Farming activities in Kossuth County generate annual revenues of $24 million, most of which is from crops. Kossuth County is the largest county in Iowa (974 square miles). It's located in the Western Iowa region of Iowa.