Lakes / Indiana / St. Joseph County / Riddles Lake
Riddles Lake, Indiana
78.48 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Indiana
41.50 degrees N, 86.26 degrees W - St. Joseph 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 Riddles Lake Stacks Up
- Larger than 56% of the 425 lakes counted in Indiana.
- About 12 miles from South Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Pleasant Lake | St. Joseph | 1.1 mi | 31.97 acres |
| Lake of the Wood | Marshall | 5.9 mi | 420.83 acres |
| Worster Lake | St. Joseph | 6.1 mi | 336.95 acres |
| Sousley Lake | St. Joseph | 9.5 mi | 59.67 acres |
| Chamberlain Lake | St. Joseph | 12 mi | 28.16 acres |
| Koontz Lake | Starke | 13 mi | 339.49 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Riddles Lake
How Big Is Riddles Lake?
Riddles Lake covers 78.48 acres in St. Joseph County, Indiana.
What Is the Largest Lake in St. Joseph County?
Worster Lake is the largest lake in St. Joseph County, at 336.95 acres.
Largest Lakes in Indiana
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Monroe Lake | Monroe | 11,112.45 acres | - |
| 2 | Patoka Lake | Orange | 9,120.83 acres | - |
| 3 | Brookville Lake | Franklin | 4,364.22 acres | - |
| 4 | Lake Wawasee | Kosciusko | 3,426.28 acres | - |
| 5 | Broad Pond | Gibson | 2,941.52 acres | - |
All 425 Indiana lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 123166010). Verified October 30, 2026.