Lakes / New Hampshire / Belknap County / Opechee Bay Reservoir
Opechee Bay Reservoir, New Hampshire
448.91 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - New Hampshire
43.55 degrees N, 71.47 degrees W - Belknap County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Opechee Bay Reservoir Stacks Up
- Larger than 92% of the 516 lakes counted in New Hampshire.
- About 1 miles from Laconia, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Winnisquam | Belknap | 2.0 mi | 4,213.89 acres |
| Lily Pond | Belknap | 2.6 mi | 44.73 acres |
| Saltmarsh Pond | Belknap | 3.0 mi | 39.54 acres |
| Pickerel Pond | Belknap | 4.1 mi | 77.1 acres |
| Randlett Pond | Belknap | 5.2 mi | 32.37 acres |
| Lake Wicwas | Belknap | 6.1 mi | 350.15 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Opechee Bay Reservoir
How Big Is Opechee Bay Reservoir?
Opechee Bay Reservoir covers 448.91 acres in Belknap County, New Hampshire.
What Is the Largest Lake in Belknap County?
Lake Winnipesaukee is the largest lake in Belknap County, at 45,654.45 acres.
Largest Lakes in New Hampshire
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Winnipesaukee | Belknap | 45,654.45 acres | - |
| 2 | Umbagog Lake | Coos | 7,642.5 acres | - |
| 3 | Squam Lake | Belknap | 6,791.2 acres | - |
| 4 | Newfound Lake | Grafton | 4,451.11 acres | - |
| 5 | Lake Winnisquam | Belknap | 4,213.89 acres | - |
All 516 New Hampshire lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 107204611). Verified October 30, 2026.