| Official Name: | Rochester, 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: | Wabash |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 394 |
| Coordinates: | 38.3456°N -87.8281°W |
| Area Code: | 618 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 416784 |
Rochester is an unincorporated community in Wabash County, Illinois, United States. Rochester is located on the Wabash River 2miles east of Keensburg.