The value of all farms, rural land, hunting land and other land for sale in Indiana's Jay County recently was $2 million, representing a total of 106 acres of land for sale in Jay County. Jay County ranks 91st out of 92 counties in the state for the total acreage of land currently advertised for sale. Of all land and rural real estate for sale in Jay County, Dunkirk had the most land for sale. Jay County is Indiana's 59th largest county (384 square miles). It's located in the East Indiana region of the state.