Lakes / Iowa / Poweshiek County / Diamond Lake
Diamond Lake, Poweshiek County, Iowa
90 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Iowa
41.59 degrees N, 92.55 degrees W - Poweshiek 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 Diamond Lake Stacks Up
- Larger than 48% of the 220 lakes counted in Iowa.
- About 53 miles from Cedar Rapids, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Ponderosa | Poweshiek | 1.4 mi | 111 acres |
| Lake Ponderosa | Poweshiek | 2.0 mi | 168 acres |
| Holiday Lake | Poweshiek | 17 mi | 90 acres |
| Rock Creek Lake | Jasper | 19 mi | 515 acres |
| Lake Iowa | Iowa | 20 mi | 81 acres |
| Lake Keomah | Mahaska | 20 mi | 90 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Diamond Lake
How Big Is Diamond Lake?
Diamond Lake covers 90 acres in Poweshiek County, Iowa.
What Is the Largest Lake in Poweshiek County?
Lake Ponderosa is the largest lake in Poweshiek County, at 168 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 152745948). Verified October 30, 2026.