San Diego is a city located in Duval County, Texas. San Diego has a 2025 population of 3,588 . It is also the county seat of Duval County . San Diego is currently declining at a rate of -0.88% annually and its population has decreased by -4.22% since the most recent census, which recorded a population of 3,746 in 2020.
The average household income in San Diego is $50,990 with a poverty rate of 32.07%. The median age in San Diego is 35.6 years: 39.5 years for males, and 32.1 years for females. For every 100 females there are 83.2 males.
Data after 2023 is projected based on recent change
The racial composition of San Diego includes 83.14% White, 4.43% other race, and smaller percentages for Native American, Black or African American and multiracial populations.
White (83.14%)
Two or more races (11.04%)
Other race (4.43%)
Native American (1.34%)
Black or African American (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,155 | 83.14% |
| Two or more races | 419 | 11.04% |
| Other race | 168 | 4.43% |
| Native American | 51 | 1.34% |
| Black or African American | 2 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
San Diego's average per capita income is $34,912. Household income levels show a median of $46,969. The poverty rate stands at 32.07%.
Name | Median | Mean |
|---|---|---|
| Married Families | $55,179 | - |
| Households | $46,969 | $50,990 |
| Non Families | $45,179 | $48,302 |
| Families | $44,203 | $48,834 |
Average Income
Median Household Income
Poverty Rate