Lakes / Colorado / Weld County / Long Lake
Long Lake, Weld County, Colorado
84 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
40.54 degrees N, 104.50 degrees W - Weld 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 Long Lake Stacks Up
- Larger than 61% of the 778 lakes counted in Colorado.
- About 54 miles from Boulder, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Howards Lake | Weld | 4.2 mi | 53 acres |
| Lindies Lakes | Weld | 6.1 mi | 37 acres |
| Briscoe Lake | Weld | 7.1 mi | 46 acres |
| Owl Creek Reservoir | Weld | 8.3 mi | 92 acres |
| Darling Reservoir | Weld | 8.4 mi | 32 acres |
| Cozzens Lake | Weld | 9.9 mi | 43 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Long Lake
How Big Is Long Lake?
Long Lake covers 84 acres in Weld County, Colorado.
What Is the Largest Lake in Weld County?
Riverside Reservoir is the largest lake in Weld County, at 3,633 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 120672554). Verified October 30, 2026.