San Marcos, Texas Population 2024

72,686

San Marcos is a city located in Caldwell County, Comal County, Guadalupe County, Hays County, and Travis County Texas. San Marcos has a 2024 population of 72,686. It is also the county seat of Hays County. San Marcos is currently growing at a rate of 1.56% annually and its population has increased by 6.55% since the most recent census, which recorded a population of 68,217 in 2020.

The average household income in San Marcos is $60,543 with a poverty rate of 27.65%. The median age in San Marcos is 25.2 years: 25.7 years for males, and 24.6 years for females.

San Marcos Demographics

According to the most recent ACS, the racial composition of San Marcos was:

  • White: 66.01%
  • Two or more races: 17.85%
  • Other race: 7.1%
  • Black or African American: 6.16%
  • Asian: 2.31%
  • Native American: 0.48%
  • Native Hawaiian or Pacific Islander: 0.1%
State
Texas
Land Area (mi²)
38.9 sq mi
Density (mi²)
1,869.90/sq mi
Growth Since 2020
6.55% (4,469)
The current population of San Marcos, Texas is 72,686 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 68,217.

Population by Race

Race
Population
Percentage (of total)
White44,32066.01%
Two or more races11,98417.85%
Other race4,7687.1%
Black or African American4,1356.16%
Asian1,5492.31%
Native American3220.48%
Native Hawaiian or Pacific Islander650.1%

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

San Marcos Population by Race

San Marcos Population Pyramid 2024

San Marcos Median Age

25.2

Total

25.7

Male

24.6

Female

San Marcos Adults

There are 58,720 adults, (6,306 of whom are seniors) in San Marcos.

San Marcos Age Dependency

28.1

Age Dependency Ratio

12

Old Age Dependency Ratio

16.1

Child Dependency Ratio

San Marcos Sex Ratio

Female35,19752.42%
Male31,94647.58%

San Marcos Population by Age

San Marcos Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All26,9802.2628.971.1
Non Family15,1301.7214.285.8
Married7,7972.9357.842.2
Female2,8913.1323.176.9
Male1,1622.5340.459.6

2.84

Average Family Size

2.26

Average Household Size

28.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

San Marcos Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,5414.54%
Associates Degree2,2876.73%
Bachelors Degree7,51022.11%
Graduate Degree4,60213.55%
High School Graduate8,19824.14%
Less Than 9th Grade1,6754.93%
Some College8,15224%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

San Marcos Educational Attainment by Sex (over 25)

San Marcos Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White15,06714,8177,397
Hispanic14,51211,8752,928
2+ Races6,4375,3531,558
Other Race3,0382,6861,184
Black1,5601,401312
Asian682530299
Native American20517311
Islander27270

The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among white people with a rate of 49.09%.

San Marcos Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$49,281$65,724$43,292
Graduate Degree$56,079$62,468$49,917
High School Graduate$30,396$37,078$22,938
Less Than 9th Grade$32,151$35,110$21,333
Overall$36,778$39,621$30,243
Some College$30,213$34,920$25,287

$36,778

Average Earnings

$39,621

Average Male

$30,243

Average Female

San Marcos Earnings by Educational Attainment

San Marcos Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

San Marcos Language

71.13% of San Marcos residents speak only English, while 28.87% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 24.52% of the population.

San Marcos Language

San Marcos Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White27,8458,60330.9%
Hispanic26,2885,70721.71%
Multiple11,1601,75215.7%
Black2,7211,14442.04%
Other4,59489519.48%
Asian1,09733830.81%
Native29082.76%

27.65%

Overall Poverty Rate

21.62%

Male Poverty Rate

33.25%

Female Poverty Rate

Poverty in San Marcos

The race most likely to be in poverty in San Marcos is Black, with 42.04% below the poverty level.

The race least likely to be in poverty in San Marcos is Native, with 2.76% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 6.13%. Among those working part-time, it was 41.11%, and for those that did not work, the poverty rate was 43.98%.

San Marcos Poverty

rate

Rate
Poverty
Some College23.72%
High School18.11%
Less Than 9th Grade17.21%
Bachelors or Greater6.92%

San Marcos Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed66.72%
Female Unemployed39.09%
Female Employed23.42%
Male Employed13.34%

San Marcos Poverty Rate by Employment Status and Sex

San Marcos Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$60,805$80,774
Households$47,394$60,543
Married Families$75,559$-999,999,999
Non Families$31,458$42,362

mean

median

Income by Household Type

San Marcos Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

28.5%

Overall Marriage Rate

29.5%

Male Marriage Rate

27.5%

Female Marriage Rate

San Marcos Married by Age and Sex

male

female

San Marcos Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.

San Marcos Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

San Marcos Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

2,463

Number of Veterans

2,283

Male Veterans

180

Female Veterans

War
Veterans
Second Gulf War912
Vietnam826
First Gulf War521
Korea101
World War II8

San Marcos Veterans by War

count

Age Group
Veterans
35 to 54795
65 to 74577
75+460
18 to 34393
55 to 64238

San Marcos Veterans by Age

count

Name
Veterans
% of Total
White1,5940.04067052790039038
Hispanic7180.03115643306574094
Other Race3480.08149882903981265
2+ Races2720.027934682140289616
Black2390.06785917092561045
Native American100.03484320557491289

San Marcos Veterans by Race

San Marcos Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.24%

Veteran Poverty Rate

25.13%

Veteran Disability Rate

San Marcos Veterans by Education

LaborForceParticipation

66.8%

Labor Force Participation

62%

Employment Rate

6.8%

Unemployment Rate

San Marcos Employment by Age

LaborForceParticipation

San Marcos Employment by Race

LaborForceParticipation

San Marcos Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

69.73%

Born in San Marcos

91.26%

Native Born

8.74%

Foreign Born

5.98%

Non Citizen

2.75%

Naturalized

Place of Birth

91.26% of San Marcos residents were born in the United States, with 69.73% having been born in Texas. 5.98% 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

Note: data after 2022 is projected based on recent change

30 Rows

Year
Population
Growth
Change
202978,2721,1171.45%
202877,1551,1171.47%
202776,0381,1181.49%
202674,9201,1171.51%
202573,8031,1171.54%
202472,6861,1171.56%
202371,5691,1841.68%
202270,3851,0531.52%
202169,3321,1151.63%
202068,2173,4655.35%
201964,7529501.49%
201863,8021860.29%
201763,6161,8342.97%
201661,7821,3162.18%
201560,4661,4692.49%
201458,9974,5888.43%
201354,4094,3998.8%
201250,0102,3224.87%
201147,6882,4305.37%
201045,25800%
200034,7335,99020.84%
199028,7435,32322.73%
198023,4204,56024.18%
197018,8606,14748.35%
196012,7132,73327.38%
19509,9803,97466.17%
19406,00687216.98%
19305,13460713.41%
19204,52745611.2%
19104,071-74,201-94.8%

San Marcos Population by Year