New Hampshire River Map showing major rivers in New Hampshire, River start and end point, county boundaries.
River Map of New Hampshire State
PDF Map - Free Download New Hampshire River Map, United States
More New Hampshire Maps & Info
Rivers and Waterways in New Hampshire
New Hampshire鈥檚 river systems flow through mountainous terrain in the north and rolling hills toward the Atlantic coast. Most rivers drain southeast into the Atlantic Ocean, while western rivers flow into the Connecticut River and eventually Long Island Sound. Snowmelt and rainfall play a key role in maintaining water levels, especially in spring. The state also has numerous lakes and reservoirs that support drinking water, recreation, and hydropower across its largely forested landscape.
Major Rivers in New Hampshire
| River | Length (Approx.) | Region | Flows Into |
|---|---|---|---|
| Connecticut River | 410 mi | West | Long Island Sound |
| Merrimack River | 117 mi | South | Atlantic Ocean |
| Androscoggin River | 178 mi | North | Kennebec River |
| Pemigewasset River | 65 mi | Central | Merrimack River |
| Saco River | 136 mi | East | Atlantic Ocean |
| Salmon Falls River | 52 mi | East | Piscataqua River |
| Contoocook River | 71 mi | Central | Merrimack River |
| Ammonoosuc River | 55 mi | North | Connecticut River |
| Ashuelot River | 64 mi | Southwest | Connecticut River |
| Suncook River | 63 mi | Central | Merrimack River |
| Winnipesaukee River | 10 mi | Central | Merrimack River |
| Israel River | 24 mi | North | Connecticut River |
| Cold River | 21 mi | Southwest | Connecticut River |
| Swift River | 24 mi | Central | Saco River |
| Bearcamp River | 34 mi | Central | Ossipee Lake |
| Ossipee River | 40 mi | East | Saco River |
| Mascoma River | 31 mi | West | Connecticut River |
| Sugar River | 27 mi | West | Connecticut River |
Major Lakes in New Hampshire
| Lake | Type | Region |
|---|---|---|
| Lake Winnipesaukee | Natural lake | Central |
| Squam Lake | Natural lake | Central |
| Newfound Lake | Natural lake | Central |
| Umbagog Lake | Natural lake | North |
| Lake Sunapee | Natural lake | West |
| Ossipee Lake | Natural lake | East |
| Great Bay | Natural estuary | East |
| Moore Reservoir | Reservoir | North |
| Franklin Pierce Lake | Reservoir | South |
| Silver Lake | Natural lake | East |
Major River Basins in New Hampshire
New Hampshire鈥檚 river basins are divided between those draining into the Atlantic Ocean and those flowing west into the Connecticut River system. These basins are essential for water supply, hydropower, and maintaining natural ecosystems.
- Connecticut River Basin
- Merrimack River Basin
- Saco River Basin
- Piscataqua River Basin
- Androscoggin River Basin
- Contoocook River Basin
- Ammonoosuc River Basin
- Ashuelot River Basin
- Ossipee River Basin
New Hampshire Rivers Facts
| State | New Hampshire |
| Total Rivers & Streams | 10,000+ miles of streams |
| Major Rivers | Connecticut, Merrimack, Saco |
| Total Waterway Length | 11,000+ miles |
| Main Drainage | Atlantic Ocean & Long Island Sound |
| Longest River | Connecticut River |
| Shortest River | Winnipesaukee River |
| Major River Basins | 9 Primary Basins |
| Primary Outlet | Atlantic Ocean |
| Key Uses | Drinking water, hydropower, recreation |
| Longest River Within State | Merrimack River |
| Number of River Basins | 7鈥�10 Basins |
| Major Reservoirs | Moore Reservoir, Franklin Pierce Lake |
| Primary Water Source | Surface water and lakes |
River Maps of the 50 U.S. States 鈥� Click on a State to View Its River Map
- Alabama River Map
- Alaska River Map
- Arizona River Map
- Arkansas River Map
- California River Map
- Colorado River Map
- Connecticut River Map
- Delaware River Map
- Florida River Map
- Georgia River Map
- Hawaii River Map
- Idaho River Map
- Illinois River Map
- Indiana River Map
- Iowa River Map
- Kansas River Map
- Kentucky River Map
- Louisiana River Map
- Maine River Map
- Maryland River Map
- Massachusetts River Map
- Michigan River Map
- Minnesota River Map
- Mississippi River Map
- Missouri River Map
- Montana River Map
- Nebraska River Map
- Nevada River Map
- New Hampshire River Map
- New Jersey River Map
- New Mexico River Map
- New York River Map
- North Carolina River Map
- North Dakota River Map
- Ohio River Map
- Oklahoma River Map
- Oregon River Map
- Pennsylvania River Map
- Rhode Island River Map
- South Carolina River Map
- South Dakota River Map
- Tennessee River Map
- Texas River Map
- Utah River Map
- Vermont River Map
- Virginia River Map
- Washington River Map
- West Virginia River Map
- Wisconsin River Map
- Wyoming River Map