San Marcos is a city located in Hays County, Texas. San Marcos has a 2025 population of 73,803. It is also the county seat of Hays County. San Marcos is currently growing at a rate of 1.54% annually and its population has increased by 8.19% since the most recent census, which recorded a population of 68,217 in 2020.
The average household income in San Marcos is $63,872 with a poverty rate of 26.7%.The median age in San Marcos is 25.5 years: 26.1 years for males, and 24.8 years for females.
Data after 2023 is projected based on recent change
The racial composition of San Marcos includes 63.32% White, 8.23% other race, 5.64% Black or African American, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 43,643 | 63.32% |
Two or more races | 13,768 | 19.98% |
Other race | 5,673 | 8.23% |
Black or African American | 3,890 | 5.64% |
Asian | 1,474 | 2.14% |
Native American | 427 | 0.62% |
Native Hawaiian or Pacific Islander | 45 | 0.07% |
Married
Widowed
Divorced
Separated
Never Married
San Marcos' average per capita income is $39,076. Household income levels show a median of $51,030. The poverty rate stands at 26.7%.
Name | Median | Mean |
---|---|---|
Married Families | $83,801 | - |
Families | $63,670 | $83,378 |
Households | $51,030 | $63,872 |
Non Families | $35,997 | $46,506 |
Average Income
Median Household Income
Poverty Rate