Lakes / Missouri / Cass County / Harper Lake
Harper Lake, Missouri
26.19 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Missouri
38.72 degrees N, 94.47 degrees W - Cass 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 Harper Lake Stacks Up
- Larger than 3% of the 352 lakes counted in Missouri.
- About 27 miles from Kansas City, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Peculiar City Reservoir | Cass | 1.5 mi | 27.18 acres |
| Uhlmann Lake | Cass | 5.8 mi | 25.29 acres |
| Silver Lake | Cass | 5.9 mi | 54.36 acres |
| Sims Lake | Cass | 6.1 mi | 34.59 acres |
| North Lake | Cass | 6.4 mi | 37.81 acres |
| Harrisonville City Lake | Cass | 7.9 mi | 417.03 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Harper Lake
How Big Is Harper Lake?
Harper Lake covers 26.19 acres in Cass County, Missouri.
What Is the Largest Lake in Cass County?
Harrisonville City Lake is the largest lake in Cass County, at 417.03 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 107419855). Verified October 30, 2026.