Atlantic County is a county located in the U.S. state of New Jersey. Its county seat is Mays Landing. This county is associated with (though not officially a part of) the Delaware Valley area as well as the Atlantic City Hammonton Metropolitan Statistical Area. Though the county itself is most well known for an affordable airport and Atlantic City, you will also find much to do outdoors. From camping to boating to exploring the Pine Barrens.. it is all here!