Bradley Beach is a borough in Monmouth County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 4,282, a decrease of 16 from the 2010 census count of 4,298, which in turn had reflected a decrease of 495 from the 4,793 counted at the 2000 census. The summer population can reach 30,000.