Demographics & People — St. Augustine, Illinois
Population Overview
| Population (Census) | 123 |
|---|
| Estimated 2026 | ~0 |
|---|
| Median Age | 60.3 |
|---|
| Total Households | 63 |
|---|
| Family Households | 37 |
|---|
| Average Household Size | 1.95 |
|---|
| Diversity Index | 0.0615 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 122 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 4 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 39 |
| Irish | 32 |
| Other groups | 32 |
| German | 24 |
| Hispanic: Hispanic or Latino | 7 |
| American | 6 |
| Polish | 6 |
| Hispanic: Mexican | 6 |
| Swedish | 4 |
| English | 3 |
Language
| English Only | 113 |
|---|
| Spanish | 1 |
|---|
| Population 5+ | 114 |
|---|
Veterans
| Veterans | 10 |
|---|
| Population 18+ | 105 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Augustine, Illinois.
