Demographics & People — Buffalo Grove, Illinois
Population Overview
| Population (Census) | 42,824 |
| Estimated 2026 | ~43,100 |
| Median Age | 42.0 |
| Total Households | 16,068 |
| Family Households | 12,013 |
| Average Household Size | 2.65 |
| Diversity Index | 0.5349 (moderately diverse) |
Race & Ethnicity
| White | 26,363 |
| Black or African American | 1,617 |
| Asian | 12,094 |
| Hispanic or Latino | 2,705 |
Heritage & Ancestry
| Group | Count |
| Other groups | 18,489 |
| Unclassified or not reported | 6,445 |
| German | 3,966 |
| Polish | 3,261 |
| Hispanic: Hispanic or Latino | 2,926 |
| Russian | 2,891 |
| Irish | 2,525 |
| Italian | 2,388 |
| Ukrainian | 2,204 |
| Hispanic: Mexican | 2,020 |
Language
| English Only | 21,977 |
| Spanish | 2,097 |
| Population 5+ | 40,437 |
Veterans
| Veterans | 950 |
| Population 18+ | 32,423 |
Commuting
| Mean Commute Time | 26.3 minutes |
| Work from Home | 32.1% |
| 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 Buffalo Grove, Illinois.