| Place Name | Petersburg |
| Place Type | Census Designated Place |
| ZIP Code(s) | 99833 |
| County | Petersburg Borough |
| Area Code(s) | 907 |
| Timezone | Alaska Daylight Time (AKDT) |
| Population (2022) | 3,163 |
| Population Growth Rate (2010-19) | 3.22% |
| Majority Ethnicity | White 67.8% |
| US Congressional District(s) | Alaska At-Large |
| State House Districts | 35 |
| State Senate Districts | R |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 67.8% |
| African American | 1.1% |
| Hispanic | 6.89% |
| Asian | 17.84% |
| Native American | 0.16% |
| Hawaiin/Pacific Islander | 6.21% |