Strathmere is an unincorporated community and census-designated place (CDP) located within Upper Township in Cape May County, New Jersey, United States. As of the 2010 United States Census, the CDP's population was 158.
With its beaches in the Strathmere section, Upper Township is one of five municipalities in the state that offer free public access to oceanfront beaches monitored by lifeguards, joining Atlantic City, North Wildwood, Wildwood and Wildwood Crest.
The earliest known people on Ludlam Island (where Strathmere is located) were the Lenape indigenous people, who came to the island in the summertime to hunt fish and crustaceans. Along the northern 1.5 mi (2.4 km) portion of the island was a community named Corson's Inlet, after the waterway separating the island and Ocean City to the north. A part of Upper Township and Dennis Township became a part of neighboring Sea Isle City in 1905, also on Ludlam Island. That same year, Sea Isle City sold Corson's Inlet to Upper Township for $31,500 (1905 USD) to pay off municipal debt. In 1912, the community of Corson's Inlet was renamed Strathmere.
The Whale Beach section of Strathmere got its name from the whales that would periodically beach themselves there.
In 2007, Citizens for Strathmere and Whale Beach petitioned to leave Upper Township and join neighboring Sea Isle City, citing an unfair tax burden, inadequate municipal services, and a lengthy wait time for the police. The local planning board held 18 meetings over the next two years, and the township recommended against de-annexation in 2009, noting that taxes would increase school taxes by 20% for the remainder of Upper Township. The group in favor of de-annexation filed a suit with the New Jersey Superior Court, which ruled against the petition in 2010. An appeal to the New Jersey Supreme Court was denied in January 2013.
According to the United States Census Bureau, the CDP had a total area of 0.760 square miles (1.968 km2), including 0.598 square miles (1.549 km2) of land and 0.162 square miles (0.419 km2) of water (21.29%).
The 2010 United States Census counted 158 people, 82 households, and 49.036 families in the CDP. The population density was 264.2 per square mile (102.0/km2).