City in Monroe County, Michigan · 0.5 sq mi · 2,380 people per sq mi
1,149 people live in Petersburg. The typical household earns $83,235, and the median resident is 37.8 years old.
2026 projection
From 1,171 in 2020
Poverty rate 1.78%
Men 33.8 · Women 40.9
2010–2026
1,149
2026 projection
1.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
1,149
2026 projection
1.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 1,149 | -3 | 0.26% |
|---|---|---|---|
| 2025 | 1,152 | -4 | 0.35% |
| 2024 | 1,156 | -3 | 0.26% |
| 2023 | 1,159 | 0 | 0.00% |
| 2022 | 1,159 | -10 | 0.86% |
| 2021 | 1,169 | -2 | 0.17% |
| 2020 | 1,171 | +6 | 0.52% |
| 2019 | 1,165 | +6 | 0.52% |
| 2018 | 1,159 | +9 | 0.78% |
| 2017 | 1,150 | 0 | 0.00% |
Showing 10 of 17 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Petersburg has a population change lower than Monroe County, Michigan, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 12 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 56 residents
54% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 54% | 59% | 49% |
| Never married | 26% | 29% | 24% |
| Divorced | 10% | 10% | 10% |
| Widowed | 10% | 1% | 17% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources