Camden County is located in the U.S. state of New Jersey. Its county seat is Camden. The county was founded in 1844 from parts of Gloucester County. This county is part of the Delaware Valley area.Camden County has a total area of approximately 228 square miles of which 98% is land and 2% water. As of the 2000 census, there were 508,932 people, 185,744 households, and 129,835 families residing in Camden County, NJ.