Lawnside is a borough in Camden County, in the U.S. state of New Jersey. Lawnside was developed in 1840 and incorporated in 1926 as the first independent, self-governing Black municipality north of the Mason–Dixon line. The United Parcel Service has a large depot in the borough. As of the 2020 United States census, the borough's population was 2,955, an increase of 10 (+0.3%) from the 2010 census count of 2,945, which in turn reflected an increase of 253 (+9.4%) from the 2,692 counted in the 2000 census.

Camden County is a county located in the U.S. state of New Jersey. Its county seat is Camden. As of the 2020 census, the county was the state's ninth-most populous county, with a population of 523,485, its highest decennial count ever and an increase of 9,828 (+1.9%) from the 2010 census count of 513,657, which in turn reflected an increase of 4,725 (0.9%) from the 508,932 counted in the 2000 census. The county is part of the South Jersey region of the state.