The borough is a Jersey Shore community situated on the Barnegat Peninsula, also known as Barnegat Bay Island, a long, narrow barrier island that separates Barnegat Bay from the Atlantic Ocean. The town is linked to the New Jersey-mainland via the Mantoloking Bridge, linking the town with Brick Township across the Barnegat Bay. Mantoloking is home to the Olympic-champion producing Mantoloking Yacht Club. Some old "summer cottages" in the borough were designed by architect Stanford White of McKim, Mead & White. Together with Bay Head to the north, Mantoloking is considered part of the Jersey Shore's "Gold Coast". It is a dry town where alcohol cannot be sold.