Concordia Parish is in central Louisiana, along the eastern border of the state, and strategically situated along the Mississippi River. Concordia Parish is almost entirely bounded by rivers, except for short stretches of land on the north and south boundaries. The parish consists of 696 square miles. Land use is mainly for agriculture and woodland. The parish has a population of 20,828. There are four incorporated municipal areas in Concordia Parish: Clayton, Ferriday, Ridgecrest and Vidalia. Vidalia, the parish seat, overlooks the Mississippi River on the eastern border.