Lakes / Iowa / Emmet County / Swan Lake
Swan Lake, Emmet County, Iowa
766 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Iowa
43.36 degrees N, 94.67 degrees W - Emmet 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 Swan Lake Stacks Up
- Larger than 91% of the 220 lakes counted in Iowa.
- The largest lake in Emmet County among those counted.
- About 24 miles from Okoboji, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| North Slough | Emmet | 2.1 mi | 54 acres |
| West Slough | Emmet | 2.5 mi | 50 acres |
| Ingham Lake | Emmet | 3.0 mi | 368 acres |
| Cunningham Slough | Emmet | 3.7 mi | 242 acres |
| High Lake | Emmet | 4.2 mi | 555 acres |
| Bur Oak Lake | Emmet | 6.1 mi | 92 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Swan Lake
How Big Is Swan Lake?
Swan Lake covers 766 acres in Emmet County, Iowa.
What Is the Largest Lake in Emmet County?
Swan Lake is the largest lake in Emmet County, at 766 acres.
Largest Lakes in Iowa
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Rathbun Lake | Appanoose | 13,869 acres | - |
| 2 | Lake Red Rock | Marion | 8,619 acres | - |
| 3 | Spirit Lake | Dickinson | 5,463 acres | - |
| 4 | Saylorville Lake | Polk | 5,428 acres | - |
| 5 | Clear Lake | Cerro Gordo | 3,632 acres | - |
All 220 Iowa 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 120825939). Verified October 30, 2026.