Arnold city, Pennsylvania
Official LSAD Designation: Arnold city • Census GEOID: 4203088
• Westmoreland County
Demographics & Population Profile
Population and demographics for Arnold city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 4,619 | — | 2025 | Census |
| Median Age | 40.6 yrs | ±3.8 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 2,189 | ±202 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).