Demographics & People — San Marcos, Texas

Population Overview

Population (Census)68,920
Estimated 2026~75,700
Median Age25.5
Total Households27,606
Family Households12,004
Average Household Size2.25
Diversity IndexN/A (N/A)

Race & Ethnicity

White43,643
Black or African American3,890
Asian1,474
Hispanic or Latino28,890

Heritage & Ancestry

GroupCount
Other groups30,635
Hispanic: Hispanic or Latino28,124
Hispanic: Mexican23,399
Unclassified or not reported17,375
German7,743
Irish5,436
English4,642
Hispanic: Other Hispanic or Latino1,665
Hispanic: Central American1,645
Italian1,366

Language

English Only48,684
Spanish15,290
Population 5+66,164

Veterans

Veterans2,463
Population 18+58,515

Commuting

Mean Commute Time24.0 minutes
Work from Home11.1%
Commuter ProfileN/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for San Marcos, Texas.