Demographics & People — Mason, Illinois
Population Overview
| Population (Census) | 365 |
|---|
| Estimated 2026 | ~800 |
|---|
| Median Age | 29.8 |
|---|
| Total Households | 145 |
|---|
| Family Households | 95 |
|---|
| Average Household Size | 2.52 |
|---|
| Diversity Index | 0.1747 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 325 |
|---|
| Black or African American | 0 |
|---|
| Asian | 26 |
|---|
| Hispanic or Latino | 8 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 135 |
| German | 79 |
| American | 68 |
| English | 51 |
| Irish | 43 |
| Other groups | 43 |
| Scottish | 8 |
| Polish | 7 |
| Hispanic: Other Hispanic or Latino | 6 |
| Hispanic: All other Hispanic or Latino | 6 |
Language
| English Only | 312 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 334 |
|---|
Veterans
| Veterans | 18 |
|---|
| Population 18+ | 261 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Mason, Illinois.
