Camden County is a county located in the U.S. state of New Jersey. Its county seat is Camden. As of the 2019 Census estimate, the county's population was 506,471, making it the state's 8th-largest county, representing a 1.4% decrease from the 513,657 enumerated at the 2010 Census, in turn having increased by 4,725 (up 0.9%, the third-lowest growth rate in the state) from the 508,932 counted in the 2000 Census. The most populous place was Camden, with 77,344 residents at the time of the 2010 Census, while Winslow Township covered , the largest total area of any municipality.