State
County
Land Area (mi²)
34.1 sq mi
Density (mi²)
1,961.30/sq mi
2020 Growth Rate
1.65%
Growth Since 2010
49.13%
Rank in State
Rank in Country
World Population Review
San Marcos, Texas Population 2021
66,952
San Marcos is a city located in Hays County Texas. It is also the county seat of Hays County. With a 2020 population of 66,952, it is the 60th largest city in Texas and the 565th largest city in the United States . San Marcos is currently growing at a rate of 1.65% annually and its population has increased by 49.13% since the most recent census, which recorded a population of 44,894 in 2010. San Marcos reached it's highest population of 66,952 in 2021. Spanning over 34 miles, San Marcos has a population density of 1,961 people per square mile.
The average household income in San Marcos is $54,535 with a poverty rate of 32.15%. The median rental costs in recent years comes to $1,064 per month, and the median house value is $171,500. The median age in San Marcos is 24.2 years, 25.3 years for males, and 22.9 years for females.
San Marcos Demographics
According to the most recent ACS, the racial composition of San Marcos was:
- White: 84.29%
- Black or African American: 6.38%
- Other race: 3.85%
- Two or more races: 2.65%
- Asian: 2.47%
- Native American: 0.27%
- Native Hawaiian or Pacific Islander: 0.08%
The current population of San Marcos, Texas is 66,952 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 63,688.The last official US Census in 2010 recorded the population at 44,894.
San Marcos, Texas Population 2021
| Race | Population | Percentage |
|---|---|---|
| White | 53,290 | 84.29% |
| Black or African American | 4,034 | 6.38% |
| Some Other Race | 2,435 | 3.85% |
| Two or More Races | 1,675 | 2.65% |
| Asian | 1,564 | 2.47% |
| American Indian and Alaska Native | 170 | 0.27% |
| Native Hawaiian and Other Pacific Islander | 52 | 0.08% |
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San Marcos Population by Race
San Marcos Population Pyramid $2021
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San Marcos Population by Age
San Marcos Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 23,154 | 2.45 | 29.7 |
| Non Family | 13,094 | 1.88 | 14.7 |
| Married | 6,212 | 3.12 | 64 |
| Female | 2,499 | 3.34 | 24 |
| Male | 1,349 | 3.36 | 27.8 |
3.05
Average Family Size
2.45
Average Household Size
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San Marcos Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 1,500 | 5.00% |
| 9th to 12th Grade | 2,304 | 7.67% |
| High School Graduate | 7,522 | 25.05% |
| Some College | 6,993 | 23.29% |
| Associates Degree | 1,657 | 5.52% |
| Bachelors Degree | 6,611 | 22.02% |
| Graduate Degree | 3,436 | 11.44% |
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San Marcos Educational Attainment by Sex (over 25)
San Marcos Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 14,516 | 13,896 | 7,220 |
| Hispanic | 12,691 | 9,719 | 1,911 |
| Black | 1,495 | 1,403 | 278 |
| Other Race | 1,191 | 1,020 | 156 |
| Asian | 812 | 754 | 474 |
| 2+ Races | 636 | 585 | 184 |
| Native American | 143 | 143 | 47 |
| Islander | 16 | 16 |
The highest rate of high school graduation is among native american people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 58.37%.
San Marcos Educational Attainment by Race
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$32,247
Average Earnings
$37,710
Average Male
$28,213
Average Female
San Marcos Earnings by Educational Attainment
San Marcos Language by Age
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San Marcos Language
71.35% of San Marcos residents speak only English, while 28.65% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 25.28% of the population.
San Marcos Language
San Marcos Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 26,622 | 8,998 | 33.80% |
| Hispanic | 24,794 | 7,853 | 31.67% |
| Black | 2,960 | 998 | 33.72% |
| Other | 2,226 | 894 | 40.16% |
| Asian | 1,332 | 239 | 17.94% |
| Multiple | 1,405 | 199 | 14.16% |
| Islander | 52 | 20 | 38.46% |
32.15%
Overall Poverty Rate
26.64%
Male Poverty Rate
37.54%
Female Poverty Rate
Poverty in San Marcos
The race most likely to be in poverty in San Marcos is Other, with 40.16% below the poverty level.
The race least likely to be in poverty in San Marcos is Multiple, with 14.16% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 6.90%. Among those working part-time, it was 51.20%, and for those that did not work, the poverty rate was 46.54%.
San Marcos Poverty
San Marcos Poverty Rate by Education
San Marcos Marital Status
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Marriage Rates
24.8%
Overall Marriage Rate
26.2%
Male Marriage Rate
23.5%
Female Marriage Rate
San Marcos Married by Age and Sex
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San Marcos Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
San Marcos Marital Status by Race
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San Marcos Marital Status
San Marcos Veterans by War
San Marcos Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 2,036 | 4.40% |
| Hispanic | 833 | 3.86% |
| Black | 321 | 9.10% |
| 2+ Races | 131 | 11.80% |
| Other Race | 76 | 3.91% |
| Native American | 23 | 13.53% |
San Marcos Veterans by Race
San Marcos Veterans by Education
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14.47%
Veteran Poverty Rate
28.58%
Veteran Disability Rate
San Marcos Veterans by Education
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67.3%
Labor Force Participation
62.2%
Employment Rate
7.5%
Unemployment Rate
San Marcos Employment by Age
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San Marcos Employment by Race
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San Marcos Employment by Education
Origin of Non-Citizens
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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
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90.92%
Native Born
9.08%
Foreign Born
5.35%
Non Citizen
3.73%
Naturalized
Place of Birth
90.92% of San Marcos residents were born in the United States, with 68.20% having been born in Texas. 5.35% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
San Marcos Place of Birth
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 66,952 | 1,088 | 1.65% |
| 2020 | 65,864 | 1,088 | 1.68% |
| 2019 | 64,776 | 1,088 | 1.71% |
| 2018 | 63,688 | 162 | 0.26% |
| 2017 | 63,526 | 1,800 | 2.92% |
| 2016 | 61,726 | 1,280 | 2.12% |
| 2015 | 60,446 | 1,463 | 2.48% |
| 2014 | 58,983 | 4,580 | 8.42% |
| 2013 | 54,403 | 4,393 | 8.78% |
| 2012 | 50,010 | 2,323 | 4.87% |
| 2011 | 47,687 | 2,420 | 5.35% |
| 2010 | 45,267 | 10,534 | 2.68% |
| 2000 | 34,733 | 5,990 | 1.91% |
| 1990 | 28,743 | 5,323 | 2.07% |
| 1980 | 23,420 | 4,560 | 2.19% |
| 1970 | 18,860 | 6,147 | 4.02% |
| 1960 | 12,713 | 2,733 | 2.45% |
| 1950 | 9,980 | 3,974 | 5.21% |
| 1940 | 6,006 | 872 | 1.58% |
| 1930 | 5,134 | 607 | 1.27% |
| 1920 | 4,527 | 456 | 1.07% |
| 1910 | 4,071 | 0.00% |