Lakes / New Hampshire / Belknap County / Halfmoon Lake
Halfmoon Lake, New Hampshire
282.44 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - New Hampshire
43.39 degrees N, 71.23 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 Halfmoon Lake Stacks Up
- Larger than 86% of the 516 lakes counted in New Hampshire.
- About 15 miles from Laconia, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Locke Lake | Belknap | 0.8 mi | 148.76 acres |
| Brindle Pond | Belknap | 1.8 mi | 91.43 acres |
| Lower Suncook Lake | Belknap | 2.4 mi | 295.08 acres |
| Upper Suncook Lake | Belknap | 2.8 mi | 401.96 acres |
| Huntress Pond | Belknap | 3.6 mi | 48.68 acres |
| Downing Pond | Strafford | 4.6 mi | 53.62 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Halfmoon Lake
How Big Is Halfmoon Lake?
Halfmoon Lake covers 282.44 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 135907912). Verified October 30, 2026.