Demographics & People — Greencastle, Pennsylvania
Population Overview
| Population (Census) | 4,237 |
| Estimated 2026 | ~4,200 |
| Median Age | 43.6 |
| Total Households | 1,665 |
| Family Households | 1,126 |
| Average Household Size | 2.54 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 3,950 |
| Black or African American | 64 |
| Asian | 85 |
| Hispanic or Latino | 3 |
Heritage & Ancestry
| Group | Count |
| German | 1,810 |
| Unclassified or not reported | 872 |
| Irish | 449 |
| Other groups | 411 |
| American | 373 |
| English | 309 |
| European | 269 |
| Scotch-Irish | 187 |
| Arab | 104 |
| Other Arab | 104 |
Language
| English Only | 3,516 |
| Spanish | 95 |
| Population 5+ | 3,825 |
Veterans
| Veterans | 279 |
| Population 18+ | 3,192 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Greencastle, Pennsylvania.