Demographics & People — South New Castle, Pennsylvania
Population Overview
| Population (Census) | 849 |
| Estimated 2026 | ~500 |
| Median Age | 42.3 |
| Total Households | 315 |
| Family Households | 233 |
| Average Household Size | 2.7 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 806 |
| Black or African American | 1 |
| Asian | 0 |
| Hispanic or Latino | 9 |
Heritage & Ancestry
| Group | Count |
| Italian | 311 |
| German | 249 |
| Irish | 245 |
| Other groups | 94 |
| Polish | 90 |
| Unclassified or not reported | 86 |
| English | 69 |
| Slovak | 43 |
| Hungarian | 34 |
| European | 26 |
Language
| English Only | 796 |
| Spanish | 0 |
| Population 5+ | 800 |
Veterans
| Veterans | 90 |
| Population 18+ | 672 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for South New Castle, Pennsylvania.