Swimming River Reservoir is a lake in Monmouth County, New Jersey. Its current pool elevation is about 33 ft (USGS gauge 01407498, 2026-07-03 00:15). We never estimate missing readings — a “—” means no current source.
Full conditions, things to do, and where to stay, eat, and rent on the Swimming River Reservoir guide. More: boat rentals · cabins & rentals · fishing · things to do.