Tool

Compare places

Put up to four U.S. cities, towns or census-designated places side by side on 29 figures: 22 measures from the ACS 2020-2024 5-year estimates, each with its margin, and their 2025 population estimate, growth, density, new homes and housing costs against income. A filled square marks a figure that differs from the first place by more than both margins of error allow; without it, the survey cannot tell the two apart.

How do San Marcos, TX compare?

Population, growth, density, new homes and housing costs against income (Census Bureau estimates Vintage 2025, 2020 Census, Building Permits Survey 2025, ACS 2020-2024 5-year estimates)
FigureSan Marcos, TX
Residents, July 2025 (estimate)77,830
Change since April 2020+14.9%
Residents counted in the 2020 Census67,553
Residents per square mile (2020)1,692
Homes permitted in 2025 per 1,000 residents9.2
Median home value ÷ median household income6.1 years of income
A year of median rent ÷ median income of all households (renters usually earn less)30.9%
ACS 2020-2024 5-year estimates. ■ differs from San Marcos beyond the margins of error.
MeasureSan Marcos, TX
Total population70,897±80
Median age25.5±0.4
Hispanic or Latino (any race)42.2%±2.2 pts
White alone, not Hispanic44.6%±2.1 pts
Black or African American alone, not Hispanic5.2%±0.8 pts
Asian alone, not Hispanic2.1%±0.4 pts
Born outside the United States9.1%±1.9 pts
Bachelor's degree or higher (age 25+)38.3%±3.6 pts
Median household income$51,281±$2,567
Per capita income$27,545±$1,643
People below the poverty line26.9%±2.5 pts
Unemployment rate5.2%±1.2 pts
Median home value (owner-occupied)$310,400±$22,179
Median gross rent$1,322±$39
Renters paying 35% or more of income on rent56.1%±4.0 pts
Owner-occupied homes30.8%±2.5 pts
Built 2020 or later7.1%±1.5 pts
Worked from home11.1%±1.4 pts
Drove alone to work68.4%±2.6 pts
Public transportation1.3%±0.6 pts
Mean travel time to work24.0 min±1.3
No health insurance coverage16.4%±2.2 pts

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census Bureau population estimates, Vintage 2025; 2020 Census; Building Permits Survey 2025 · Check it at data.census.gov