Lakes in Bay County, Michigan
3 lakes counted in Bay County - the largest is Tobico Lagoon at 643 acres.
3
Lakes Counted
643 acres
Largest - Tobico Lagoon
Bay County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Tobico Lagoon | Bay | 643 acres | - |
| 2 | Saginaw River | Bay | 583 acres | - |
| 3 | Tobico Lagoon | Bay | 37 acres | - |
Sources: Michigan DNR lake data; USGS. Verified October 30, 2026.