Mercer County is in Central New Jersey. Of the 21 counties in the Garden State, Mercer County ranks 16th in terms of size (228 square miles). There is almost 1,000 acres of farms for sale in New Jersey's Mercer County based on recent Land Network data. The combined market value of land and rural real estate for sale here is nearly $12 million. The average price of farms for sale in Mercer County was $6 million. Together with fields and farmland for grazing and crop production, Mercer County farms for sale number orchards where harvests include regionally grown fruits and vegetables. Browse all New Jersey farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or lifestyle needs.