Demographics & People — St. Peter, Illinois
Population Overview
| Population (Census) | 256 |
|---|
| Estimated 2026 | ~600 |
|---|
| Median Age | 39.7 |
|---|
| Total Households | 104 |
|---|
| Family Households | 62 |
|---|
| Average Household Size | 2.46 |
|---|
| Diversity Index | 0.0 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 251 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 139 |
| Unclassified or not reported | 85 |
| American | 36 |
| Other groups | 22 |
| Irish | 21 |
| English | 8 |
| Dutch | 6 |
| Polish | 6 |
| French (except Basque) | 5 |
| Italian | 4 |
Language
| English Only | 235 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 237 |
|---|
Veterans
| Veterans | 10 |
|---|
| Population 18+ | 209 |
|---|
Commuting
| Mean Commute Time | 22.1 minutes |
|---|
| Work from Home | 1.2% |
|---|
| Commuter Profile | N/A |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Peter, Illinois.
