Demographics & People — Mill Creek, Pennsylvania
Population Overview
| Population (Census) | 290 |
| Estimated 2026 | ~400 |
| Median Age | 34.3 |
| Total Households | 104 |
| Family Households | 62 |
| Average Household Size | 2.79 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 282 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 3 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 199 |
| German | 75 |
| Irish | 24 |
| Italian | 16 |
| Other groups | 14 |
| American | 11 |
| Scotch-Irish | 8 |
| Dutch | 6 |
| French Canadian | 5 |
| English | 4 |
Language
| English Only | 283 |
| Spanish | 0 |
| Population 5+ | 283 |
Veterans
| Veterans | 29 |
| Population 18+ | 237 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Mill Creek, Pennsylvania.