Lakes / Iowa / Emmet County / Cunningham Slough
Cunningham Slough, Iowa
242 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Iowa
43.31 degrees N, 94.69 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 Cunningham Slough Stacks Up
- Larger than 73% of the 220 lakes counted in Iowa.
- About 24 miles from Okoboji, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Ingham Lake | Emmet | 0.9 mi | 368 acres |
| High Lake | Emmet | 1.1 mi | 555 acres |
| West Slough | Emmet | 1.5 mi | 50 acres |
| North Slough | Emmet | 1.9 mi | 54 acres |
| Bur Oak Lake | Emmet | 3.0 mi | 92 acres |
| Swan Lake | Emmet | 3.7 mi | 766 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Cunningham Slough
How Big Is Cunningham Slough?
Cunningham Slough covers 242 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 120826306). Verified October 30, 2026.