| Place Name | Rochester |
| Place Type | Village |
| ZIP Code(s) | 62563 |
| County | Sangamon County |
| Area Code(s) | 217 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 3,712 |
| Population Growth Rate (2010-19) | 4.72% |
| Majority Ethnicity | White 95.58% |
| Metro/Micro Stats Area | Springfield, IL |
| US Congressional District(s) | Illinois 13th |
| State House Districts | 87,96 |
| State Senate Districts | 44,48 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.58% |
| African American | 0.28% |
| Hispanic | 0% |
| Asian | 1.85% |
| Native American | 0.31% |
| Hawaiin/Pacific Islander | 1.98% |