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CITY · 2000 CENSUS

San Marcos

Texas · 34,733 residents · 38.9 sq mi
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The short version

With 34,733 people, San Marcos is a city in Texas. This skews young, with a median age of 23.3. Owners hold 30% of the housing stock. The poverty rate is 28.5%, above the 12.4% national rate. Households here earn about 35% less than in Texas as a whole. Households take in $25,809 at the median, 39% less than the US figure.

At a glance
Lower income
below the US median
US median: $42,589
Younger
median age 23.3
US median: 35.2
More educated
29% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
34,733
+21%since 1990
from 28,743 in 1990
1990 – 2025
Median age
23.3
+2%since 1990
from 22.8 in 1990
US average: 35.2
Land area
38.9 sq mi
Population, 1990 – 2024
25K37K50K62K75K19902000201020202024San Marcos
202471K
1990201020202024
Age distribution, 2000
Under 54.9%(1,718)
US avg: 6.8%
5 to 94.1%(1,414)
US avg: 7.3%
10 to 143.8%(1,325)
US avg: 7.3%
15 to 1912%(4,167)
US avg: 7.2%
20 to 2432.5%(11,274)
US avg: 6.7%
25 to 3416%(5,567)
US avg: 14.2%
35 to 448.8%(3,040)
US avg: 16%
45 to 546.5%(2,250)
US avg: 13.4%
55 to 644.2%(1,471)
US avg: 8.6%
65 to 743.3%(1,158)
US avg: 6.5%
75 to 842.6%(904)
US avg: 4.4%
85 and over1.3%(445)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$25,809
+32%inflation adjusted, since 1990
from $14,816 in 1990
US average: $42,589
1990 – 2024
Per capita income
$13,468
+66%since 1990
from $8,103 in 1990
US average: $21,522
Poverty rate
28.5%
−8.6 ptssince 1990
from 37.1% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$76,000
Unchangedinflation adjusted, since 1990
from $57,700 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$622
+19%inflation adjusted, since 1990
from $398 in 1990
US average: $602
Owner-occupied
30.2%
−1.4 ptssince 1990
from 31.6% in 1990
69.8% rent
Section 04

Race & ethnicity

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

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)
Section 05

Education

Bachelor's degree or higher
29.0%
+1.5 ptssince 1990
from 27.5% in 1990
US average: 24.4%
High school or higher
79.5%
+11.7 ptssince 1990
from 67.8% in 1990
US average: 80.3%
Graduate degree
11.0%
+1.3 ptssince 1990
from 9.7% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
15.7 min
−12%since 1990
from 17.9 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married61%(8,847)
Married31.5%(4,563)
Widowed1.2%(179)
Divorced6.2%(904)
Women 15+
Never married55%(8,426)
Married30.4%(4,661)
Widowed6.7%(1,022)
Divorced7.9%(1,204)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured
16.4%
−7.0 ptssince 2013
from 23.4% in 2013
US average: 8.4%
Employer-based
54.0%
−1.4 ptssince 2020
from 55.4% in 2020
US average: 54.8%
Direct-purchase
19.3%
+2.3 ptssince 2020
from 17.0% in 2020
US average: 13.8%
Medicare
11.7%
+1.4 ptssince 2020
from 10.3% in 2020
US average: 18.4%
Medicaid
12.2%
+1.0 ptssince 2020
from 11.2% in 2020
US average: 20.9%
VA health care
1.9%
−0.1 ptssince 2020
from 2.0% in 2020
US average: 2.2%
Any private
70.0%
−0.5 ptssince 2020
from 70.5% in 2020
US average: 67.1%
Any public
22.3%
+1.6 ptssince 2020
from 20.7% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)38.1%(1,110)
US avg: 26.4%
Gulf War (1990s)19%(553)
US avg: 24.3%
Vietnam era32.5%(946)
US avg: 33.1%
Korean War2.7%(80)
US avg: 4.5%
World War II0.2%(6)
US avg: 1%

Share of the 2,911 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Compare San Marcos to nearby cities

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SAN MARCOS VS
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SAN MARCOS VS
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SAN MARCOS VS
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Income$86,021+233%
Home value$339,400+347%
Population122,492+57%
SEE FULL COMPARISON →
Frequently asked

How many people live in San Marcos, Texas?

San Marcos, Texas has about 34,733 residents according to the 2000 Census.

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

The typical household in San Marcos, Texas earns about $25,809 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 $76,000, and the typical rent is about $622 a month.

How educated are people in San Marcos, Texas?

About 29.0% 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 28.5% of people in San Marcos, Texas live below the federal poverty line.

Has San Marcos, Texas grown since 1990?

Yes, San Marcos, Texas has grown since 1990. The population has added about 5,990 residents, a change of about 21 percent over that period.

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

How we source and harmonize this data →