San Marcos, California Population 2022

97,043
map placeholder

San Marcos is a city located in San Diego County California. With a 2020 population of 97,043, it is the 78th largest city in California and the 359th largest city in the United States. San Marcos is currently growing at a rate of 1.15% annually and its population has increased by 0.86% since the most recent census, which recorded a population of 96,219 in 2020. Spanning over 24 miles, San Marcos has a population density of 3,984 people per square mile.

The average household income in San Marcos is $105,999 with a poverty rate of 10.04%. The median rental costs in recent years comes to $1,802 per month, and the median house value is $584,600. The median age in San Marcos is 35.5 years, 34.8 years for males, and 36.2 years for females.

San Marcos Demographics

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

  • White: 68.45%
  • Asian: 10.46%
  • Two or more races: 9.15%
  • Other race: 8.83%
  • Black or African American: 2.07%
  • Native American: 0.88%
  • Native Hawaiian or Pacific Islander: 0.17%
The current population of San Marcos, California is 97,043 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 96,219.

San Marcos, California Population 2022

Population by Race

Loading...

San Marcos Population by Race

San Marcos Population Pyramid 2022

Loading...

San Marcos Median Age

35


Total

33.2


Male

36.5


Female

San Marcos Adults

There are 70,716 adults, (12,227 of whom are seniors) in San Marcos.

San Marcos Age Dependency

Age Dependency Ratio

20.9

Old Age Dependency Ratio

43.6

Child Dependency Ratio

San Marcos Sex Ratio

Female

48,060

49.95%

Male

48,159

50.05%

San Marcos Population by Age

San Marcos Renter vs Owner Occupied by Household Type

map placeholder

San Marcos Household Types

62.6%

Rate of Home Ownership

San Marcos Households and Families

3.66

Average Family Size

3.2

Average Household Size

Loading...

San Marcos Households by Type

Loading...
Loading...

San Marcos Educational Attainment by Sex (over 25)

San Marcos Educational Attainment by Race

Loading...

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among islander people with a rate of 67.10%.

San Marcos Educational Attainment by Race

Loading...

$45,626

Average Earnings

$52,631

Average Male

$38,698

Average Female

San Marcos Earnings by Educational Attainment

San Marcos Language by Age

Loading...

San Marcos Language

62.06% of San Marcos residents speak only English, while 37.94% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 27.78% of the population.

San Marcos Language

San Marcos Poverty by Race

Loading...

10.04%

Overall Poverty Rate

9.01%

Male Poverty Rate

11.09%

Female Poverty Rate

Poverty in San Marcos

The race most likely to be in poverty in San Marcos is Islander, with 25.93% below the poverty level.

The race least likely to be in poverty in San Marcos is Multiple, with 7.33% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.82%. Among those working part-time, it was 15.04%, and for those that did not work, the poverty rate was 19.42%.

San Marcos Poverty

Loading...

San Marcos Poverty Rate by Education

Loading...

San Marcos Poverty Rate by Employment Status and Sex

San Marcos Income by Household Type

Loading...
Loading...

Income by Household Type

San Marcos Marital Status

map placeholder

Marriage Rates

52.5%

Overall Marriage Rate

54.2%

Male Marriage Rate

50.9%

Female Marriage Rate

San Marcos Married by Age and Sex

Loading...

San Marcos Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

San Marcos Marital Status by Race

map placeholder

San Marcos Marital Status

Loading...

4,786

Number of Veterans

Male Veterans

Female Veterans

San Marcos Veterans by War

Loading...

San Marcos Veterans by Age

Loading...

San Marcos Veterans by Race

San Marcos Veterans by Education

Loading...

9.28%

Veteran Poverty Rate

24.99%

Veteran Disability Rate

San Marcos Veterans by Education

Loading...

66.4%

Labor Force Participation

63.4%

Employment Rate

4.1%

Unemployment Rate

San Marcos Employment by Age

Loading...

San Marcos Employment by Race

Loading...

San Marcos Employment by Education

Origin of Non-Citizens

Loading...

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

Origin of Naturalized Citizens

Loading...

54.17%

Born in San Marcos

75.41%

Native Born

24.59%

Foreign Born

11.88%

Non Citizen

12.72%

Naturalized

Place of Birth

75.41% of San Marcos residents were born in the United States, with 54.17% having been born in California. 11.88% 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: 2021 and 2022 data is projected

San Marcos Population by Year