Cape May County is the southernmost county in the U.S. state of New Jersey. Much of the county is located on the Cape May peninsula, bound by the Delaware Bay to its west and the Atlantic Ocean to its south and east. Adjacent to the Atlantic coastline are five barrier islands that have been built up as seaside resorts. A consistently popular summer destination with 30 miles (48 km) of beaches, Cape May County attracts vacationers from New Jersey and surrounding states, with the summer population exceeding 750,000. An estimated 11.6 million visitors in 2023 generated annual tourism spending of $7.7 billion, making it the county's single largest industry. The associated leisure and hospitality industries are Cape May's largest employers. Its county seat is the Cape May Court House section of Middle Township. The county is part of both the Jersey Shore and South Jersey regions of the state.
As of the 2020 United States census, the county was the state's second-least populous county, with a population of 95,263, a decrease of 2,002 (−2.1%) from the 2010 census count of 97,265, which in turn reflected a decline of 5,061 (-4.9%) from the 102,326 counted in the 2000 census. The United States Census Bureau's Population Estimates Program estimated a 2024 population of 93,875, a decrease of 1,388 (-1.5%) from the 2020 decennial census. The county is part of the Ocean City, NJ metropolitan statistical area and the Philadelphia-Reading-Camden, PA-NJ-DE-MD combined statistical area, also known as the Delaware Valley.