Land for sale in Miami County recently totaled around $4 million and almost 1,000 acres. Miami County ranks 88th out of 92 counties in the Crossroads of America for the combined amount of land currently advertised for sale. Of all farms, rural land, hunting land and other land for sale in Miami County, Peru had the most land for sale. Miami County is the 61st largest county (377 square miles) in Indiana. It's located in the East Indiana region of the state.