Of 64 counties in the state, Union Parish ranks 19th by size (905 square miles). Union Parish is in Sportsman's Paradise Louisiana. Union Parish, Louisiana, has nearly 1,000 acres of farms for sale based on recent Land Network data. The combined market value of farmsand rural real estate for sale here was nearly $800,000. Browse all Union Parish 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. The most common type of land for sale by combined acreage in Union Parish is residential property.