Lakes / Colorado / Boulder County / Erie Lake
Erie Lake, Colorado
25 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
40.02 degrees N, 105.10 degrees W - Boulder 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 Erie Lake Stacks Up
- Larger than 1% of the 778 lakes counted in Colorado.
- About 9 miles from Boulder, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Waneka Reservoir | Boulder | 1.8 mi | 48 acres |
| Teller Lake Number 5 | Boulder | 2.5 mi | 31 acres |
| Harper Lake | Boulder | 4.3 mi | 27 acres |
| Leggett and Hillcrest Reservoir | Boulder | 5.0 mi | 507 acres |
| Panama Reservoir Number 1 | Boulder | 5.3 mi | 335 acres |
| Base Line Reservoir | Boulder | 5.8 mi | 261 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Erie Lake
How Big Is Erie Lake?
Erie Lake covers 25 acres in Boulder County, Colorado.
What Is the Largest Lake in Boulder County?
Boulder Reservoir is the largest lake in Boulder County, at 536 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 128058765). Verified October 30, 2026.