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New Jersey River Map (PDF) | Major Rivers & Lakes in New Jersey

Written and Fact-checked by | Updated On: April 03, 2026 | 15:05 ET

New Jersey River Map showing major rivers in New Jersey, River start and end point, county boundaries.

River Map of New Jersey State

Rivers and Waterways in New Jersey

New Jersey’s river systems flow across coastal plains, rolling hills, and forested regions, with most waterways draining into the Atlantic Ocean or the Delaware River. The Delaware River forms the state’s western boundary, while many eastern rivers flow directly into bays and coastal estuaries. Northern areas feature smaller, faster streams, while southern regions include slower rivers and wetlands. Reservoirs and natural lakes across the state play an important role in drinking water supply, recreation, and environmental management.

Major Rivers in New Jersey

RiverLength (Approx.)RegionFlows Into
Delaware River301 miWestDelaware Bay
Passaic River80 miNorthNewark Bay
Raritan River121 miCentralRaritan Bay
Hackensack River45 miNorthNewark Bay
Maurice River50 miSouthDelaware Bay
Mullica River50 miSouthGreat Bay
Toms River41 miCentralBarnegat Bay
Great Egg Harbor River55 miSouthGreat Egg Harbor Bay
Salem River34 miSouthDelaware River
Musconetcong River45 miWestDelaware River
Pequest River35 miWestDelaware River
Manasquan River26 miCentralAtlantic Ocean
Shrewsbury River28 miCentralAtlantic Ocean
North Branch Raritan River38 miCentralRaritan River
South Branch Raritan River51 miCentralRaritan River
Cooper River16 miSouthDelaware River
Cohansey River30 miSouthDelaware Bay
Wading River35 miSouthMullica River

Major Lakes in New Jersey

LakeTypeRegion
Lake HopatcongNatural lakeNorth
Greenwood LakeNatural lakeNorth
Round Valley ReservoirReservoirCentral
Spruce Run ReservoirReservoirCentral
Monksville ReservoirReservoirNorth
Wanaque ReservoirReservoirNorth
Lake MusconetcongNatural lakeNorth
Deal LakeNatural lakeCentral
Union LakeReservoirSouth
Lake AtsionNatural lakeSouth

Major River Basins in New Jersey

New Jersey’s river basins are divided between those draining into the Delaware River and those flowing directly into the Atlantic Ocean. These basins support drinking water systems, wetlands, and coastal ecosystems across the state.

  • Delaware River Basin
  • Passaic River Basin
  • Raritan River Basin
  • Hackensack River Basin
  • Maurice River Basin
  • Mullica River Basin
  • Toms River Basin
  • Great Egg Harbor Basin
  • Cohansey River Basin

New Jersey Rivers Facts

StateNew Jersey
Total Rivers & Streams23,000+ miles of streams
Major RiversDelaware, Passaic, Raritan
Total Waterway Length25,000+ miles
Main DrainageAtlantic Ocean & Delaware River
Longest RiverDelaware River
Shortest RiverCooper River
Major River Basins9 Primary Basins
Primary OutletAtlantic Ocean
Key UsesDrinking water, recreation, ecosystems
Longest River Within StatePassaic River
Number of River Basins7–10 Basins
Major ReservoirsRound Valley, Spruce Run, Wanaque Reservoir
Primary Water SourceReservoirs and surface water