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
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.
According to the most recent ACS, the racial composition of San Marcos was:
| 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% |
| 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
| 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% |
| 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%.
$32,247
Average Earnings
$37,710
Average Male
$28,213
Average Female
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.
| 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
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%.
24.8%
Overall Marriage Rate
26.2%
Male Marriage Rate
23.5%
Female Marriage Rate
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.
| 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% |
14.47%
Veteran Poverty Rate
28.58%
Veteran Disability Rate
67.3%
Labor Force Participation
62.2%
Employment Rate
7.5%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
90.92%
Native Born
9.08%
Foreign Born
5.35%
Non Citizen
3.73%
Naturalized
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.
| 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% |