Camden is a city in and the county seat of Camden County, New Jersey, in the United States. Camden is located directly across the Delaware River from Philadelphia, Pennsylvania. At the 2010 U.S. Census, the city had a population of 77,344. Camden is the 12th most populous municipality in New Jersey. The city was incorporated on February 13, 1828. Camden has been the county seat of Camden County since the county was formed on March 13, 1844. The city derives its name from Charles Pratt, 1st Earl Camden. Camden is made up of over twenty different neighborhoods.