Lakes / Missouri / Washington County / Hornsey Brothers Lake
Hornsey Brothers Lake, Missouri
48.93 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Missouri
37.96 degrees N, 90.87 degrees W - Washington 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 Hornsey Brothers Lake Stacks Up
- Larger than 46% of the 352 lakes counted in Missouri.
- About 59 miles from St. Louis, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Sunnen Lake | Washington | 3.4 mi | 212.13 acres |
| Hornsey Lake | Washington | 3.6 mi | 73.88 acres |
| Sayersbrook Lake | Washington | 4.1 mi | 44.8 acres |
| Keyes Branch Mine Tailings Pond | Washington | 6.0 mi | 54.04 acres |
| Howell Lake | Washington | 9.4 mi | 27.96 acres |
| Parole Lake | Washington | 9.4 mi | 43.14 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Hornsey Brothers Lake
How Big Is Hornsey Brothers Lake?
Hornsey Brothers Lake covers 48.93 acres in Washington County, Missouri.
What Is the Largest Lake in Washington County?
Sunnen Lake is the largest lake in Washington County, at 212.13 acres.
Largest Lakes in Missouri
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake of the Ozarks | Camden | 51,171.75 acres | - |
| 2 | Harry S Truman Reservoir | Benton | 49,365.93 acres | - |
| 3 | Table Rock Lake | Stone | 41,777.86 acres | - |
| 4 | Stockton Lake | Cedar | 24,962.34 acres | - |
| 5 | Mark Twain Lake | Ralls | 18,362.33 acres | - |
All 352 Missouri lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 43890675). Verified October 30, 2026.