Lakes / Alaska / Matanuska-Susitna County / Twelvemile Lake
Twelvemile Lake, Matanuska-Susitna County, Alaska
51 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Alaska
61.77 degrees N, 149.72 degrees W - Matanuska-Susitna 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 Twelvemile Lake Stacks Up
- Larger than 15% of the 2,450 lakes counted in Alaska.
- About 39 miles from Anchorage, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Teakwood Lake | Matanuska-Susitna | 2.0 mi | 29 acres |
| Bench Lake | Matanuska-Susitna | 8.0 mi | 30 acres |
| Zero Lake | Matanuska-Susitna | 9.0 mi | 77 acres |
| Frying Pan Lake | Matanuska-Susitna | 9.3 mi | 61 acres |
| Stevens Lake | Matanuska-Susitna | 9.4 mi | 95 acres |
| Kelly Lake | Matanuska-Susitna | 10 mi | 36 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Twelvemile Lake
How Big Is Twelvemile Lake?
Twelvemile Lake covers 51 acres in Matanuska-Susitna County, Alaska.
What Is the Largest Lake in Matanuska-Susitna County?
Lake Louise is the largest lake in Matanuska-Susitna County, at 14,705 acres.
Largest Lakes in Alaska
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Iliamna Lake | Lake and Peninsula | 654,518 acres | - |
| 2 | Becharof Lake | Lake and Peninsula | 289,706 acres | - |
| 3 | Teshekpuk Lake | North Slope | 206,614 acres | - |
| 4 | Naknek Lake | Lake and Peninsula | 145,357 acres | - |
| 5 | Dall Lake | Bethel | 111,681 acres | - |
All 2,450 Alaska 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 49051590). Verified October 30, 2026.