Camden is a city in and the county seat of Camden County, in the U.S. state of New Jersey. Camden is part of the Delaware Valley (Philadelphia metropolitan area) and is located directly across the Delaware River from Philadelphia, the nation's sixth most populous city. At the 2020 United States census, Camden was the 14th-most populous municipality in the state, with a population of 71,791, a decrease of 5,553 (−7.2%) from the 2010 census count of 77,344, when it had been ranked 12th in the state by population (falling behind both Brick Township and nearby Cherry Hill), which in turn reflected a decline of 1,984 (-2.5%) from the 79,318 counted in the 2000 census. The Census Bureau's Population Estimates Program calculated that the population was 70,996 in 2022, making it the 528th-most-populous in the country. 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 20 neighborhoods. The city is part of the South Jersey region of the state.