Lakes / New Jersey / Sussex County / Lake Iliff
Lake Iliff, New Jersey
31.63 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - New Jersey
41.03 degrees N, 74.72 degrees W - Sussex 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 Iliff Stacks Up
- Larger than 16% of the 295 lakes counted in New Jersey.
- About 20 miles from Morristown, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Clearwater Lake | Sussex | 0.8 mi | 41.76 acres |
| Howells Pond | Sussex | 1.1 mi | 27.68 acres |
| New Wawayanda Lake | Sussex | 1.3 mi | 111.69 acres |
| Stickle Pond | Sussex | 1.9 mi | 31.14 acres |
| Lake Lenape | Sussex | 2.0 mi | 54.36 acres |
| Whites Pond | Sussex | 2.5 mi | 39.54 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Iliff
How Big Is Lake Iliff?
Lake Iliff covers 31.63 acres in Sussex County, New Jersey.
What Is the Largest Lake in Sussex County?
Lake Hopatcong is the largest lake in Sussex County, at 2,493.66 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 26046630). Verified October 30, 2026.