Lakes / Alaska / Valdez-Cordova County / Sea Horse Lake
Sea Horse Lake, Alaska
273 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Alaska
62.37 degrees N, 146.38 degrees W - Valdez-Cordova 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 Sea Horse Lake Stacks Up
- Larger than 65% of the 2,450 lakes counted in Alaska.
- About 140 miles from Anchorage, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Puzzle Piece Lake | Valdez-Cordova | 0.9 mi | 116 acres |
| Dog Lake | Matanuska-Susitna | 4.4 mi | 751 acres |
| North Jans Lake | Valdez-Cordova | 5.4 mi | 63 acres |
| Second Hill Lake | Valdez-Cordova | 5.6 mi | 693 acres |
| South Jans Lake | Valdez-Cordova | 5.7 mi | 82 acres |
| Lake Louise | Matanuska-Susitna | 5.9 mi | 14,705 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Sea Horse Lake
How Big Is Sea Horse Lake?
Sea Horse Lake covers 273 acres in Valdez-Cordova County, Alaska.
What Is the Largest Lake in Valdez-Cordova County?
Tazlina Lake is the largest lake in Valdez-Cordova County, at 38,912 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 27394228). Verified October 30, 2026.