Demographics & People — Oswego, Illinois
Population Overview
| Population (Census) | 35,463 |
|---|
| Estimated 2026 | ~38,600 |
|---|
| Median Age | 38.7 |
|---|
| Total Households | 12,097 |
|---|
| Family Households | 9,813 |
|---|
| Average Household Size | 2.93 |
|---|
| Diversity Index | 0.5015 (moderately diverse) |
|---|
Race & Ethnicity
| White | 24,380 |
|---|
| Black or African American | 4,260 |
|---|
| Asian | 1,614 |
|---|
| Hispanic or Latino | 5,831 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 9,440 |
| German | 8,458 |
| Unclassified or not reported | 6,299 |
| Hispanic: Hispanic or Latino | 6,106 |
| Irish | 5,148 |
| Hispanic: Mexican | 4,846 |
| Polish | 3,060 |
| English | 3,020 |
| Italian | 2,411 |
| Hispanic: Puerto Rican | 896 |
Language
| English Only | 26,734 |
|---|
| Spanish | 4,185 |
|---|
| Population 5+ | 33,848 |
|---|
Veterans
| Veterans | 974 |
|---|
| Population 18+ | 25,339 |
|---|
Commuting
| Mean Commute Time | 31.5 minutes |
|---|
| Work from Home | 17.5% |
|---|
| 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 Oswego, Illinois.
