Demographics & People — Knoxville, Illinois
Population Overview
| Population (Census) | 3,137 |
|---|
| Estimated 2026 | ~3,400 |
|---|
| Median Age | 42.6 |
|---|
| Total Households | 1,264 |
|---|
| Family Households | 840 |
|---|
| Average Household Size | 2.35 |
|---|
| Diversity Index | 0.0176 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 3,014 |
|---|
| Black or African American | 9 |
|---|
| Asian | 15 |
|---|
| Hispanic or Latino | 3 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 1,066 |
| German | 595 |
| English | 568 |
| Irish | 481 |
| Swedish | 404 |
| Other groups | 374 |
| American | 205 |
| Scotch-Irish | 192 |
| Hispanic: Mexican | 70 |
| Hispanic: Hispanic or Latino | 70 |
Language
| English Only | 2,876 |
|---|
| Spanish | 5 |
|---|
| Population 5+ | 2,948 |
|---|
Veterans
| Veterans | 179 |
|---|
| Population 18+ | 2,392 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Knoxville, Illinois.
