The value of all land and rural real estate for sale in Jay County recently was $3 million, representing a combined 66 acres of land for sale in Jay County. Jay County ranks 90th out of 92 counties in the Crossroads of America for the combined amount of land currently advertised for sale. Of all farms and rural real estate for sale in Jay County, Portland had the most land for sale. Jay County is Indiana's 59th biggest county (384 square miles). It's located in the East Indiana region of the state.