Lakes / Iowa / Jackson County / Flat Lake
Flat Lake, Iowa
114 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Iowa
42.19 degrees N, 90.35 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 Flat Lake Stacks Up
- Larger than 58% of the 220 lakes counted in Iowa.
- About 48 miles from Davenport, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Jackson Lake | Jackson | 0.4 mi | 67 acres |
| Western Pond | Jackson | 0.7 mi | 77 acres |
| Bonnie Lake | Jackson | 1.2 mi | 68 acres |
| Fish Lake | Jackson | 2.6 mi | 48 acres |
| Densmore Lake | Jackson | 3.6 mi | 60 acres |
| Sawmill Lake | Jackson | 4.0 mi | 66 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Flat Lake
How Big Is Flat Lake?
Flat Lake covers 114 acres in Jackson County, Iowa.
What Is the Largest Lake in Jackson County?
Town Lake is the largest lake in Jackson County, at 956 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 155495179). Verified October 30, 2026.