| Official Name: | Bay City, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Pope |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 341 |
| Coordinates: | 37.2489°N -88.4967°W |
| Area Code: | 618 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 424606 |
Bay City is an unincorporated community in Pope County, Illinois, United States. Bay City is located on the Ohio River 8miles south of Golconda.
A general store, built in 1915, overlooks the river. The store is restored, and open weekends. Bed and breakfast rooms are upstairs. Riverboats of past decades were dependable local transportation, and would stop for passengers or freight if hailed from the shore. Bay City is 9miles north of the Smithland Lock and Dam.