| Place Name | Rochester |
| Place Type | City |
| ZIP Code(s) | 03839 03867 03868 |
| County | Strafford County |
| Area Code(s) | 603 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 29,830 |
| Population Growth Rate (2010-19) | 9.21% |
| Majority Ethnicity | White 94.1% |
| Metro/Micro Stats Area | Boston-Cambridge-Newton, MA-NH |
| US Congressional District(s) | New Hampshire 1st |
| State House Districts | Strafford 7,Strafford 8,Strafford 9,Strafford 10,Strafford 11,Strafford 12 |
| State Senate Districts | 6 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.1% |
| African American | 1.02% |
| Hispanic | 0.01% |
| Asian | 1.81% |
| Native American | 0.47% |
| Hawaiin/Pacific Islander | 2.59% |