Highlands is a borough in northern Monmouth County, in the U.S. state of New Jersey. An historic waterfront community located on the Raritan Bay within the Raritan Valley region, this scenic borough is a commuter town of New York City in the New York metropolitan area. As of the 2020 United States census, the borough's population was 4,621, a decrease of 384 (−7.7%) from the 2010 census count of 5,005, which in turn reflected a decline of 92 (−1.8%) from the 5,097 counted in the 2000 census. The eastern part of the town is on a high bluff that overlooks Sandy Hook Bay, the entrance to New York Harbor, and the Atlantic Ocean, from which the borough derives its name. Atop this bluff are the Navesink Twin Lights.

Monmouth County is a county, located in the central section of the U.S. state of New Jersey. Comprising much of the northern half of the Jersey Shore, it is bordered to its west by Mercer and Middlesex Counties, to its south by Ocean County, to its east by the Atlantic Ocean, and to its north by the Raritan Bay. Monmouth County's geographic area comprises 30% water. The county is considered part of the Central Jersey region of the state, though it was not among the four counties explicitly listed as included in Central Jersey as part of legislation signed into law in 2023.