Lakes / New Jersey / Morris County / Lake Swannanoa
Lake Swannanoa, New Jersey
54.61 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - New Jersey
41.01 degrees N, 74.52 degrees W - Morris 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 Lake Swannanoa Stacks Up
- Larger than 50% of the 295 lakes counted in New Jersey.
- About 15 miles from Morristown, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Oak Ridge Lake | Morris | 0.7 mi | 27.03 acres |
| Cozy Lake | Morris | 1.0 mi | 26.93 acres |
| Green Pond | Morris | 1.4 mi | 506.81 acres |
| Longwood Lake | Morris | 2.1 mi | 50.9 acres |
| Lake Denmark | Morris | 2.7 mi | 241.92 acres |
| Ryker Lake | Sussex | 3.3 mi | 32.12 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Swannanoa
How Big Is Lake Swannanoa?
Lake Swannanoa covers 54.61 acres in Morris County, New Jersey.
What Is the Largest Lake in Morris County?
Boonton Reservoir is the largest lake in Morris County, at 800.95 acres.
Largest Lakes in New Jersey
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Hopatcong | Sussex | 2,493.66 acres | - |
| 2 | Round Valley Reservoir | Hunterdon | 2,272.23 acres | - |
| 3 | Wanaque Reservoir | Passaic | 1,971.09 acres | - |
| 4 | Van Sciver Lake | Burlington | 1,396.61 acres | - |
| 5 | Spruce Run Reservoir | Hunterdon | 1,354.88 acres | - |
All 295 New Jersey lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 60436173). Verified October 30, 2026.