Demographics & People — Mokena, Illinois
Population Overview
| Population (Census) | 19,906 |
| Estimated 2026 | ~20,300 |
| Median Age | 46.2 |
| Total Households | 7,227 |
| Family Households | 5,532 |
| Average Household Size | 2.75 |
| Diversity Index | 0.1683 (relatively homogeneous) |
Race & Ethnicity
| White | 18,050 |
| Black or African American | 326 |
| Asian | 206 |
| Hispanic or Latino | 1,263 |
Heritage & Ancestry
| Group | Count |
| German | 5,443 |
| Polish | 5,007 |
| Irish | 4,653 |
| Unclassified or not reported | 3,570 |
| Italian | 2,505 |
| Other groups | 1,832 |
| English | 1,610 |
| Hispanic: Hispanic or Latino | 935 |
| Dutch | 648 |
| Swedish | 542 |
Language
| English Only | 17,994 |
| Spanish | 512 |
| Population 5+ | 18,988 |
Veterans
| Veterans | 766 |
| Population 18+ | 15,511 |
Commuting
| Mean Commute Time | 30.5 minutes |
| Work from Home | 16.9% |
| 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 Mokena, Illinois.