San Marcos, California Population 2024

93,967

San Marcos Demographics

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

  • White: 55.11%
  • Two or more races: 19.28%
  • Other race: 12.36%
  • Asian: 10.89%
  • Black or African American: 1.48%
  • Native American: 0.8%
  • Native Hawaiian or Pacific Islander: 0.09%
Land Area (mi²)
24.6 sq mi
Density (mi²)
3,824.30/sq mi
Growth Since 2020
-0.93% (-882)
The current population of San Marcos, California is 93,967 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 94,849.

Population by Race

Race
Population
Percentage (of total)
White51,84455.11%
Two or more races18,13719.28%
Other race11,62812.36%
Asian10,24110.89%
Black or African American1,3911.48%
Native American7540.8%
Native Hawaiian or Pacific Islander830.09%

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

San Marcos Population by Race

San Marcos Population Pyramid 2024

San Marcos Median Age

36.8

Total

35.6

Male

37.7

Female

San Marcos Adults

There are 70,020 adults, (12,490 of whom are seniors) in San Marcos.

San Marcos Age Dependency

63.5

Age Dependency Ratio

21.7

Old Age Dependency Ratio

41.8

Child Dependency Ratio

San Marcos Sex Ratio

Female47,40650.39%
Male46,67249.61%

San Marcos Population by Age

San Marcos Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All30,8802.996337
Married17,7633.5675.724.3
Non Family8,0511.449.950.1
Female3,7613.5440.459.6
Male1,3053.537.462.6

3.45

Average Family Size

2.99

Average Household Size

63.0%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

San Marcos Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade2,6764.39%
Associates Degree5,3388.77%
Bachelors Degree17,26628.36%
Graduate Degree8,75914.39%
High School Graduate10,31716.94%
Less Than 9th Grade4,5587.49%
Some College11,97519.67%

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
White29,69828,74615,137
Hispanic20,02214,2493,711
2+ Races9,6107,8482,691
Asian7,5537,1405,211
Other Race7,2644,3631,177
Black1,1501,076575
Native American485424176
Islander83830

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

The highest rate of bachelors degrees is among asian people with a rate of 68.99%.

San Marcos Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$84,751$101,014$68,475
Graduate Degree$117,407$152,614$100,428
High School Graduate$36,526$41,222$29,931
Less Than 9th Grade$31,813$37,357$23,125
Overall$59,450$68,435$51,142
Some College$50,346$57,864$46,371

$59,450

Average Earnings

$68,435

Average Male

$51,142

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

65.05% of San Marcos residents speak only English, while 34.95% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 24.87% of the population.

San Marcos Language

San Marcos Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
Hispanic34,6634,53613.09%
White41,1103,4838.47%
Multiple17,9391,84110.26%
Other11,3451,71115.08%
Asian10,0178408.39%
Black1,27015211.97%
Native75413317.64%

10.17%

Overall Poverty Rate

8.8%

Male Poverty Rate

11.52%

Female Poverty Rate

Poverty in San Marcos

The race most likely to be in poverty in San Marcos is Native, with 17.64% below the poverty level.

The race least likely to be in poverty in San Marcos is Asian, with 8.39% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.56%. Among those working part-time, it was 15.04%, and for those that did not work, the poverty rate was 20.62%.

San Marcos Poverty

rate

Rate
Poverty
Less Than 9th Grade18.54%
High School16.41%
Some College10.2%
Bachelors or Greater4.89%

San Marcos Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed21.55%
Male Unemployed13.7%
Female Employed5.26%
Male Employed4.64%

San Marcos Poverty Rate by Employment Status and Sex

San Marcos Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$124,686$148,661
Households$105,286$131,847
Married Families$144,636$167,453
Non Families$55,633$74,755

mean

median

Income by Household Type

San Marcos Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.5%

Overall Marriage Rate

55.0%

Male Marriage Rate

50.2%

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 55-64, while the female age group most likely to be married is 35-44.

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

4,456

Number of Veterans

4,076

Male Veterans

380

Female Veterans

War
Veterans
Vietnam1,608
First Gulf War1,261
Second Gulf War1,258
Korea136
World War II33

San Marcos Veterans by War

count

Age Group
Veterans
65 to 741,291
35 to 541,234
75+790
55 to 64770
18 to 34371

San Marcos Veterans by Age

count

Name
Veterans
% of Total
White2,8217.25%
Hispanic8783.59%
2+ Races5724.76%
Asian3964.8%
Other Race3353.91%
Black31124.57%
Native American213.45%

San Marcos Veterans by Race

San Marcos Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

9.33%

Veteran Poverty Rate

30.01%

Veteran Disability Rate

San Marcos Veterans by Education

LaborForceParticipation

65.2%

Labor Force Participation

61.8%

Employment Rate

4.5%

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

55.22%

Born in San Marcos

77.59%

Native Born

22.41%

Foreign Born

9.59%

Non Citizen

12.82%

Naturalized

Place of Birth

77.59% of San Marcos residents were born in the United States, with 55.22% having been born in California. 9.59% 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
Year
Population
Growth
Change
202992,866-220-0.24%
202893,086-220-0.24%
202793,306-221-0.24%
202693,527-220-0.23%
202593,747-220-0.23%
202493,967-221-0.23%
202394,1882930.31%
202293,8956320.68%
202193,263-1,586-1.67%
202094,849-2,541-2.61%
201997,3909921.03%
201896,3981,2411.3%
201795,1576070.64%
201694,5508880.95%
201593,6621,7371.89%
201491,9252,4382.72%
201389,4872,7113.12%
201286,7761,5871.86%
201185,1891,2411.48%
201083,94800%
200054,97716,00341.06%
199038,97421,495122.98%
198017,47913,583348.64%
19703,8961,39655.84%
19602,500-90,366-97.31%

San Marcos Population by Year