Seabrook Farms is an unincorporated community and census-designated place located within Seabrook, which is in turn located in Upper Deerfield Township, in Cumberland County, in the U.S. state of New Jersey. It is part of the Vineland-Bridgeton metropolitan statistical area for statistical purposes. At the 2010 census, Seabrook Farms's population was 1,4…Seabrook Farms is an unincorporated community and census-designated place located within Seabrook, which is in turn located in Upper Deerfield Township, in Cumberland County, in the U.S. state of New Jersey. It is part of the Vineland-Bridgeton metropolitan statistical area for statistical purposes. At the 2010 census, Seabrook Farms's population was 1,484. Seabrook Farms is named after Charles F. Seabrook, a businessman who ran a truck farm that was one of the state's largest.