San Diego is a city located in Duval County, Texas. San Diego has a 2026 population of 3,557. It is also the county seat of Duval County. San Diego is currently declining at a rate of -0.86% annually and its population has decreased by -5.05% since the most recent census, which recorded a population of 3,746 in 2020.
The median household income in San Diego is $53,174 with a poverty rate of 34.01%. The median age in San Diego is 29.8 years: 25.7 years for males, and 30.9 years for females. For every 100 females there are 73.7 males.
Data after 2023 is projected based on recent change
Overall: 29.8 years
Female: 30.9 years
Male: 25.7 years
There are 2,347 adults, (487 of whom are seniors) in San Diego.
Female: 2,116 (57.6%)
Male: 1,559 (42.4%)
The racial composition of San Diego includes 72.9% White, 5.99% other race, and smaller percentages for Native American, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,679 | 72.9% |
| Two or more races | 699 | 19.02% |
| Other race | 220 | 5.99% |
| Native American | 75 | 2.04% |
| Black or African American | 2 | 0.05% |
San Diego 's average per capita income is $40,225. Household income levels show a median of $53,174. The poverty rate stands at 34.01%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $73,962 | - |
| Families | $61,800 | $62,488 |
| Households | $53,174 | $57,532 |
| Non Families | $36,984 | $44,333 |
Average Income
Median Household Income
Poverty Rate