Port Arthur city, Texas
Official LSAD Designation: Port Arthur city • Census GEOID: 4858820
• Jefferson County / Orange County
Demographics & Population Profile
Population and demographics for Port Arthur city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 55,804 | — | 2025 | Census |
| Median Age | 35.5 yrs | ±1.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 21,630 | ±702 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).