Winslow Township is a township in Camden County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 39,907, an increase of 408 (+1.0%) from the 2010 census count of 39,499, which in turn reflected an increase of 4,888 (+14.1%) from the 34,611 counted in the 2000 census.