San Diego city, Texas
Official LSAD Designation: San Diego city • Census GEOID: 4865180
• Duval County / Jim Wells County
Demographics & Population Profile
Population and demographics for San Diego city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 3,503 | — | 2025 | Census |
| Median Age | 29.8 yrs | ±8.9 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 1,253 | ±230 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).