Demographics & People — Rock Island Arsenal, Illinois
Population Overview
| Population (Census) | 372 |
|---|
| Estimated 2026 | ~800 |
|---|
| Median Age | 39.3 |
|---|
| Total Households | 79 |
|---|
| Family Households | 79 |
|---|
| Average Household Size | 4.71 |
|---|
| Diversity Index | 0.4382 (moderately diverse) |
|---|
Race & Ethnicity
| White | 82 |
|---|
| Black or African American | 3 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 33 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 193 |
| Welsh | 178 |
| European | 118 |
| Other groups | 118 |
| Unclassified or not reported | 44 |
| Irish | 35 |
| Hispanic: Mexican | 34 |
| Hispanic: Hispanic or Latino | 34 |
Language
| English Only | 327 |
|---|
| Spanish | 8 |
|---|
| Population 5+ | 372 |
|---|
Veterans
| Veterans | 0 |
|---|
| Population 18+ | 222 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Rock Island Arsenal, Illinois.
