Land for sale in Lewis County recently totaled almost $7 million and nearly 1,000 acres. Lewis County ranks 42nd in the Gem State for the combined amount of land currently advertised for sale. Among cities in Lewis County with land for sale, Kamiah had the most land for sale. Its economy is defined as agricultural, with 216 farms recorded in the county during the most recent U.S. Census. Farming activities in Lewis County generate annual revenues of $2 million, most of which is from crops. Lewis County is the 41st largest county (479 square miles) in Idaho. It's located in the North Central Idaho region of the state.