Farmerville is a town in and the parish seat of Union Parish, Louisiana, United States. The population was 3,860 at the 2010 census. It is part of the Monroe Metropolitan Statistical Area. The town is spread about Lake D'Arbonne, a popular fishing and boating waterway.The Pilgrim's Pride poultry processing and protein conversion plant in Farmerville was slated for closure early in 2009, along with other company operations in nearby Arcadia in Bienville Parish, Athens in Claiborne Parish, and Choudrant in Union Parish. The closures impacted some 1,300 jobs in North Louisiana. Several weeks later, however, Pilgrim's Pride accepted an $80 million offer from Foster Farms of California to purchase the operations. In addition to the 1,300 direct jobs, the purchase spared the small farms of some three hundred independent growers. Foster Farms put up $40 million and the State of Louisiana a matching $40 million.