Lakes / Colorado / Weld County / Frederick Reservoir
Frederick Reservoir, Colorado
63 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
40.12 degrees N, 104.95 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 Frederick Reservoir Stacks Up
- Larger than 52% of the 778 lakes counted in Colorado.
- About 19 miles from Boulder, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Coal Ridge Waste Reservoir | Weld | 5.2 mi | 54 acres |
| Foster Reservoir | Weld | 5.5 mi | 137 acres |
| Highland Reservoir Number 3 | Weld | 5.6 mi | 34 acres |
| Sanborn Reservoir | Weld | 5.7 mi | 35 acres |
| North Star Reservoir | Weld | 6.2 mi | 25 acres |
| Calkins Lake | Weld | 6.4 mi | 749 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Frederick Reservoir
How Big Is Frederick Reservoir?
Frederick Reservoir covers 63 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 128058275). Verified October 30, 2026.