Lakes / Iowa / Jackson County / Upper Y Lake
Upper Y Lake, Iowa
27 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Iowa
42.12 degrees N, 90.18 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 Upper Y Lake Stacks Up
- Larger than 4% of the 220 lakes counted in Iowa.
- About 46 miles from Davenport, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Town Lake | Jackson | 1.9 mi | 956 acres |
| Sabula Lakes | Jackson | 3.7 mi | 260 acres |
| Upper Brown Lake | Jackson | 4.8 mi | 443 acres |
| Sawmill Lake | Jackson | 6.1 mi | 66 acres |
| Densmore Lake | Jackson | 6.4 mi | 60 acres |
| Fish Lake | Jackson | 7.4 mi | 48 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Upper Y Lake
How Big Is Upper Y Lake?
Upper Y Lake covers 27 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 155495375). Verified October 30, 2026.