Demographics & People — Duncannon, Pennsylvania
Population Overview
| Population (Census) | 1,306 |
| Estimated 2026 | ~1,600 |
| Median Age | 43.5 |
| Total Households | 611 |
| Family Households | 323 |
| Average Household Size | 2.14 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 1,194 |
| Black or African American | 12 |
| Asian | 7 |
| Hispanic or Latino | 44 |
Heritage & Ancestry
| Group | Count |
| German | 532 |
| Other groups | 251 |
| Unclassified or not reported | 222 |
| Irish | 155 |
| Scotch-Irish | 120 |
| English | 107 |
| Pennsylvania German | 99 |
| American | 77 |
| Hispanic: Hispanic or Latino | 59 |
| Italian | 39 |
Language
| English Only | 1,226 |
| Spanish | 12 |
| Population 5+ | 1,243 |
Veterans
| Veterans | 122 |
| Population 18+ | 1,159 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Duncannon, Pennsylvania.