Lakes / Colorado / Park County / Jefferson Lake
Jefferson Lake, Colorado
89 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
39.46 degrees N, 105.86 degrees W - Park 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 Jefferson Lake Stacks Up
- Larger than 62% of the 778 lakes counted in Colorado.
- About 50 miles from Boulder, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lininger Lake | Park | 4.2 mi | 52 acres |
| Goose Pasture Tarn | Summit | 9.2 mi | 64 acres |
| Como Lake | Park | 10 mi | 29 acres |
| Milligan Lakes | Park | 11 mi | 27 acres |
| Duck Lake | Clear Creek | 11 mi | 43 acres |
| Tarryall Ranch Reservoir Number 1 | Park | 12 mi | 30 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Jefferson Lake
How Big Is Jefferson Lake?
Jefferson Lake covers 89 acres in Park County, Colorado.
What Is the Largest Lake in Park County?
Elevenmile Canyon Reservoir is the largest lake in Park County, at 3,112 acres.
Largest Lakes in Colorado
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | John Martin Reservoir | Bent | 11,686 acres | - |
| 2 | Blue Mesa Reservoir | Gunnison | 8,944 acres | - |
| 3 | Lake Granby | Grand | 7,075 acres | - |
| 4 | Lake Meredith | Crowley | 5,539 acres | - |
| 5 | Adobe Creek Reservoir | Bent | 4,770 acres | - |
All 778 Colorado lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 127817993). Verified October 30, 2026.