Land for sale in Idaho's Power County recently totaled almost $23 million and almost 5,000 acres. Power County ranks 35th in the state for the total number of acres of land currently advertised for sale. Of all land and rural real estate for sale in Power County, American Falls featured the most land for sale. Its economy is defined as agricultural, with 308 farms recorded in the county during the most recent U.S. Census. Farming activities in Power County generate annual revenues of $13 million, most of which is from crops. Power County is Idaho's 21st largest county (1,442 square miles). It's located in the Southeastern Idaho region of Idaho.