Maurice River Township is the easternmost township in Cumberland County, in the U.S. state of New Jersey. The township, and all of Cumberland County, is part of the Vineland-Bridgeton metropolitan statistical area for statistical purposes, and of the Philadelphia-Wilmington-Camden, PA-NJ-DE-MD combined statistical area, also known as the Delaware Valley or Philadelphia metropolitan area. As of the 2020 United States census, the township's population was 6,218, a decrease of 1,758 (−22.0%) from the 2010 census count of 7,976, which in turn reflected an increase of 1,048 (+15.1%) from the 6,928 counted in the 2000 census.

Vineland is a city and the most populous municipality in Cumberland County, within the U.S. state of New Jersey. Bridgeton and Vineland are the two principal cities of the Vineland-Bridgeton metropolitan statistical area, which encompasses those cities and all of Cumberland County for statistical purposes and which constitutes a part of the Delaware Valley. The MSA had a population of 156,898 as of the 2010 census. As of the 2020 United States census, the city's population was 60,780, its highest decennial count ever and an increase of 56 (+0.1%) from the 60,724 recorded at the 2010 census, which in turn reflected an increase of 4,453 (+7.9%) from the 56,271 counted in the 2000 census. The Census Bureau's Population Estimates Program calculated that the city's population was 60,491 in 2022, ranking the city the 639th-most-populous in the country.