San Marcos, Texas Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of San Marcos, Texas is 68,920 as of the 2023 American Community Survey, making it the 59th-largest city in Texas. The median household income is $51,030, the median home value is $269,700, and the median age is 25.5.
The population has grown 64.2% since 2010 (45,267 → 74,316).
68,920
Population
1726
People / sq mi
$51,030
Median Income
$269,700
Median Home Value
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San Marcos covers 39.9 sq mi of land at 1726 people per square mile.
About San Marcos, TX
Homeownership is the standout figure in San Marcos: 30.5% of homes are owner-occupied, lower than the national rate. With 68,920 residents, San Marcos is a city in Texas.
The typical household earns $51,030, below the US median of $78,538. Roughly 11.5% of residents fall below the poverty line, below the national 12.4%. The typical home is valued at $269,700, with typical rent around $1,299.
Degree attainment is mid-range for US cities: 37.3% of adults hold a four-year degree, above the national 35.0%. Remote work is below the national 14.0% at 10.1%, and the average commute runs about 24 minutes each way.
San Marcos city Population History (2010-2024)
The city of San Marcos city had a population of 45,267 in 2010 and 74,316 in 2024, a 64.2% growth over 14 years. The peak was 74,316 in 2024. Average annual growth rate: 3.63%.
74,316
Population (2024)
45,267
Population (2010)
74,316
Peak (2024)
3.63%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 45,267 |
| 2011 | 47,687 |
| 2012 | 50,010 |
| 2013 | 54,403 |
| 2014 | 58,983 |
| 2015 | 60,446 |
| 2016 | 61,726 |
| 2017 | 63,526 |
| 2018 | 63,688 |
| 2019 | 64,776 |
| 2020 | 68,224 |
| 2021 | 69,370 |
| 2022 | 70,542 |
| 2023 | 71,933 |
| 2024 | 74,316 |
Race & Ethnicity
| White | 63.3% |
| Black or African American | 5.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.1% |
| Two or More Races | 0.1% |
Economy & Income
$51,030
Median Household Income
$26,576
Per Capita Income
11.5%
Poverty Rate
4.1%
Unemployment Rate
Housing
$269,700
Median Home Value
$1,299
Median Rent
30.5%
Owner-Occupied
Education
90.9%
High School+
37.3%
Bachelor's+
Commute
1.2%
Drive Alone
71.0%
Public Transit
10.1%
Work From Home
24.1 min
Avg Commute
Community Profile
21.4%
Foreign Born
73.6%
Non-English at Home
4.3%
Veterans
14.5%
With Disability
83.9%
Health Insurance
95.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 24.1% |
| Education, Health Care & Social Services | 19.5% |
| Finance, Insurance & Real Estate | 9.7% |
| Retail Trade | 6.2% |
| Arts, Entertainment & Food Services | 5.5% |
| Construction | 5.0% |
| Manufacturing | 4.8% |
| Information | 3.9% |
| Public Administration | 3.1% |
| Agriculture & Mining | 1.4% |
| Transportation & Warehousing | 1.3% |
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Frequently Asked Questions
San Marcos, Texas has a population of 68,920 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 59th-largest city in Texas.
The median household income in San Marcos, Texas is $51,030, with 11.5% of residents living below the federal poverty level.
The median home value in San Marcos, Texas is $269,700, with median monthly rent at $1,299 and a homeownership rate of 30.5%.
The median age in San Marcos, Texas is 25.5 years. The population is 46.9% male and 53.1% female.
The population has grown 64.2% since 2010 (45,267 → 74,316).
Where to stay in San Marcos
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.