San Marcos Authority

San Marcos is a middle-income small city of 70,897.

San Marcos, Texas

With 70,897 residents, San Marcos ranks among the larger cities of Texas. Median household income is $51,281.

Definition and scope

Located in Caldwell County, Texas, San Marcos operates within Texas's county-municipal framework. Local services and ordinances are coordinated through county and state-level agencies. The city operates within Congressional District 21 and is part of the Austin-Round Rock-San Marcos, TX metropolitan area.

Who lives here

San Marcos has approximately 70,897 residents. The median age is 25.5 years. Roughly 31% of housing units are owner-occupied. The median home value is $310,400.

Demographic composition (Census 2023 ACS5):

• White (non-Hispanic): 44.6%
• Black or African American: 5.2%
• Hispanic or Latino: 42.2%
• Asian: 2.1%

Economy and earnings

Median household income in San Marcos is $51,281. Poverty rate stands at 26.9%. Unemployment rate at last release was 3.5%. Educational attainment: 38.3% of residents 25 and over hold a bachelor's degree or higher.

Public services and infrastructure

Available public services on file for San Marcos:

• Public schools: 15
• Public libraries: 1
• Fire stations: 3
• Police stations: 3
• Hospitals: 2

Getting around

The nearest commercial airport serving San Marcos is Alison Air Park. Federal court business routes through Hays County Government Center. Amtrak service is available at San Marcos, Texas.

Geography and climate

Elevation here is 589 feet. The USDA plant hardiness zone is 9a.

References

• Texas State Authority — state-level reference for Texas.
• U.S. Census Bureau, American Community Survey 5-Year Estimates — population, income, demographic data.
• Authority Network America — federal- and network-level reference.