Lakes / Michigan / Gratiot County
Lakes in Gratiot County, Michigan
3 lakes counted in Gratiot County - the largest is Rainbow Lake at 301 acres.
3
Lakes Counted
301 acres
Largest - Rainbow Lake
20 ft
Deepest - Half Moon Lake
Gratiot County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Rainbow Lake | Gratiot | 301 acres | - |
| 2 | Collier Creek | Gratiot | 134 acres | - |
| 3 | Half Moon Lake | Gratiot | 72 acres | 20 ft |
Sources: Michigan DNR lake data; USGS. Verified October 30, 2026.