Lakes / Colorado / Jackson County / Alkali Lake
Alkali Lake, Jackson County, Colorado
139 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
40.78 degrees N, 106.43 degrees W - Jackson 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 Alkali Lake Stacks Up
- Larger than 74% of the 778 lakes counted in Colorado.
- About 81 miles from Boulder, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake John | Jackson | 2.3 mi | 728 acres |
| North Delaney Lake | Jackson | 4.7 mi | 163 acres |
| East Delaney Lake | Jackson | 5.1 mi | 66 acres |
| Boettcher Lake | Jackson | 5.6 mi | 128 acres |
| South Delaney Lake | Jackson | 5.6 mi | 151 acres |
| Walden Reservoir | Jackson | 6.6 mi | 766 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Alkali Lake
How Big Is Alkali Lake?
Alkali Lake covers 139 acres in Jackson County, Colorado.
What Is the Largest Lake in Jackson County?
Walden Reservoir is the largest lake in Jackson County, at 766 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 128867002). Verified October 30, 2026.