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CITY · 1990 CENSUS

San Marcos

Texas · 28,743 residents · 38.871 sq mi
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The short version

San Marcos has notably lower household income than the US average, with a median household income of $14,816. Population has fallen 17% since 2000, a loss of 5,990 residents. Median home value is $57,700. At a median age of 22.8, residents skew younger than the country as a whole. The poverty rate of 37.1% is well above the national figure. Households here earn about 45% less than the Texas median.

At a glance
Lower income
below the US median
US median: $30,130
Younger
median age 22.8
US median: 33.0
More educated
27% hold a bachelor's degree
US average: 20%
Stable housing
home values roughly flat, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
28,743
−17%vs 2000
vs 34,733 in 2000
1990 – 2025
Median age
22.8
−2%vs 2000
vs 23.3 in 2000
US average: 33.0
Population, 1990 – 2024
25K37K50K62K75K1990201020202024San Marcos
202471K
1990201020202024
Age distribution, 1990
Under 54.9%(1,412)
US avg: 7.3%
5 to 94.7%(1,357)
US avg: 7.3%
10 to 144.6%(1,323)
US avg: 6.9%
15 to 1916.1%(4,632)
US avg: 7.1%
20 to 2429.7%(8,525)
US avg: 7.5%
25 to 3415.1%(4,329)
US avg: 17.5%
35 to 448.3%(2,379)
US avg: 15.1%
45 to 545.5%(1,586)
US avg: 10.2%
55 to 644.1%(1,185)
US avg: 8.5%
65 to 743.5%(1,005)
US avg: 7.3%
75 to 842.6%(736)
US avg: 4%
85 and over1%(274)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$14,816
−24%inflation adjusted, since 2000
vs $25,809 in 2000
US average: $30,130
1990 – 2024
Per capita income
$8,103
−40%vs 2000
vs $13,468 in 2000
US average: $14,340
Poverty rate
37.1%
+8.6 ptsvs 2000
vs 28.5% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$57,700
Unchangedinflation adjusted, since 2000
vs $76,000 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$398
−16%inflation adjusted, since 2000
vs $622 in 2000
US average: $450
Owner-occupied
31.6%
+1.4 ptsvs 2000
vs 30.2% in 2000
68.4% rent
RELATED:See current rent listings in San Marcos on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic55.2%(19,165)
Black5.4%(1,860)
Hispanic / Latino36.5%(12,676)
Asian1.2%(418)
Other0%
1990
White, non-Hispanic78.5%(22,553)
Black5.3%(1,534)
Hispanic / Latino37.1%(10,651)
Asian0.9%(260)
Other15.3%(4,396)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican33.4%(23,658)
Central American3.8%(2,707)
Salvadoran1.5%(1,053)
Nicaraguan1.5%(1,038)
Puerto Rican0.6%(435)
Honduran0.5%(385)
Cuban0.5%(348)
Bolivian0.4%(290)
Spaniard0.4%(278)
Venezuelan0.3%(220)
Costa Rican0.2%(147)
+ 7 more hispanic origin groups with data
Colombian0.1%(95)
Chilean0.1%(50)
Guatemalan0.1%(42)
Panamanian0.1%(42)
Peruvian0%(28)
Argentine0%(19)
Asian origin
Filipino0.5%(327)
Asian Indian0.4%(293)
Chinese0.4%(285)
Vietnamese0.2%(160)
Korean0.2%(127)
Bangladeshi0.2%(123)
Nepalese0.1%(105)
Burmese0%(16)
Pakistani0%(16)
Japanese0%(15)
Malaysian0%(13)
+ 2 more asian origin groups with data
Pacific Islander origin
Samoan0%(35)
Tongan0%(10)
Ancestry
German11.9%(8,415)
Irish8.7%(6,179)
English7.3%(5,202)
Italian2.6%(1,808)
Scottish2.4%(1,675)
French2.3%(1,646)
American2%(1,424)
Polish1.2%(859)
Norwegian0.9%(603)
Czech0.8%(578)
Swedish0.8%(546)
+ 37 more ancestry groups with data
Scotch-Irish0.6%(458)
Welsh0.5%(346)
Russian0.4%(289)
Dutch0.4%(268)
Nigerian0.3%(241)
British0.3%(238)
Portuguese0.3%(219)
Arab0.3%(201)
Finnish0.2%(158)
Iranian0.2%(146)
Brazilian0.2%(140)
West Indian0.2%(133)
Austrian0.1%(101)
Hungarian0.1%(97)
Jamaican0.1%(89)
Lebanese0.1%(69)
Armenian0.1%(63)
Ghanaian0.1%(60)
Egyptian0.1%(58)
Turkish0.1%(44)
Canadian0.1%(38)
Belgian0.1%(36)
Danish0%(33)
Guyanese0%(33)
Greek0%(22)
Ethiopian0%(20)
Slovak0%(17)
Ukrainian0%(17)
Croatian0%(15)
Bulgarian0%(12)
Latvian0%(12)
Serbian0%(11)
Slovene0%(11)
Moroccan0%(10)
Haitian0%(10)
RANKED:Largest Mexican population · Largest German population · Largest Irish population · Largest English population · Largest Central American population
Section 05

Education

Bachelor's degree or higher
27.5%
−1.5 ptsvs 2000
vs 29.0% in 2000
US average: 20.3%
High school or higher
67.8%
−11.7 ptsvs 2000
vs 79.5% in 2000
US average: 75.2%
Graduate degree
9.7%
−1.3 ptsvs 2000
vs 11.0% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
17.9 min
+14%vs 2000
vs 15.7 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
Men 15+
Never married58.5%(16,756)
Married31.6%(9,045)
Widowed1.3%(359)
Divorced8.6%(2,462)
Women 15+
Never married59.6%(20,571)
Married26.6%(9,168)
Widowed4%(1,377)
Divorced9.9%(3,410)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
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Frequently asked

How many people live in San Marcos, Texas?

San Marcos, Texas has about 28,743 residents according to the 1990 Census.

What is the median household income in San Marcos, Texas?

The typical household in San Marcos, Texas earns about $14,816 a year. Half of households make more than that, and half make less.

Is San Marcos, Texas expensive?

In San Marcos, Texas, the median home is worth about $57,700, and the typical rent is about $398 a month.

How educated are people in San Marcos, Texas?

About 27.5% of adults age 25 and over in San Marcos, Texas hold a bachelor's degree or higher.

What is the poverty rate in San Marcos, Texas?

About 37.1% of people in San Marcos, Texas live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →