City in Menard County, Illinois · 1.6 sq mi · 1,348 people per sq mi
About 2,100 people live in Petersburg. The typical household earns $56,458, and the median resident is 38.7 years old.
2026 projection
From 2,214 in 2020
Poverty rate 15.7%
Men 33.1 · Women 42.2
2010–2026
2,106
2026 projection
4.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
2,106
2026 projection
4.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 2,106 | -19 | 0.89% |
|---|---|---|---|
| 2025 | 2,125 | -14 | 0.65% |
| 2024 | 2,139 | -18 | 0.83% |
| 2023 | 2,157 | -12 | 0.55% |
| 2022 | 2,169 | -22 | 1.00% |
| 2021 | 2,191 | -23 | 1.04% |
| 2020 | 2,214 | -15 | 0.67% |
| 2019 | 2,229 | -16 | 0.71% |
| 2018 | 2,245 | +1 | 0.04% |
| 2017 | 2,244 | -25 | 1.10% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 23 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 6 residents
49% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 49% | 55% | 45% |
| Never married | 29% | 36% | 23% |
| Divorced | 16% | 7% | 24% |
| Widowed | 5% | 2% | 7% |
| Separated | <1% | 0% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau