San Marcos is a city located in San Diego County California. San Marcos has a 2024 population of 94,808. San Marcos is currently declining at a rate of -0.02% annually and its population has decreased by -0.1% since the most recent census, which recorded a population of 94,900 in 2020.
The average household income in San Marcos is $126,652 with a poverty rate of 9.74%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in San Marcos is 35.9 years, 34.6 years for males, and 37.3 years for females.
According to the most recent ACS, the racial composition of San Marcos was:
White
Two or more races
Other race
Asian
Black or African American
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 30,503 | 3.05 | 61.9 | 38.1 |
| Married | 17,280 | 3.59 | 75 | 25 |
| Non Family | 8,102 | 1.39 | 48.1 | 51.9 |
| Female | 3,791 | 3.9 | 41.8 | 58.2 |
| Male | 1,330 | 3.62 | 33.9 | 66.1 |
3.53
Average Family Size
3.05
Average Household Size
61.9%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
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 67.16%.
All
Male
Female
$55,295
Average Earnings
$63,111
Average Male
$47,044
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
64.77% of San Marcos residents speak only English, while 35.23% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 25.48% of the population.
rate
9.74%
Overall Poverty Rate
7.95%
Male Poverty Rate
11.52%
Female Poverty Rate
The race most likely to be in poverty in San Marcos is Native, with 16.83% below the poverty level.
The race least likely to be in poverty in San Marcos is Black, with 6.16% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.41%. Among those working part-time, it was 14.85%, and for those that did not work, the poverty rate was 20.19%.
Married
Widowed
Divorced
Separated
NeverMarried
52.2%
Overall Marriage Rate
53.8%
Male Marriage Rate
50.5%
Female Marriage Rate
male
female
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.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
9.25%
Veteran Poverty Rate
29.33%
Veteran Disability Rate
LaborForceParticipation
65.6%
Labor Force Participation
62.5%
Employment Rate
4.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
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.
Europe
Asia
Africa
Oceania
Latin America
North America
54.97%
Born in San Marcos
76.98%
Native Born
23.02%
Foreign Born
10.54%
Non Citizen
12.49%
Naturalized
76.98% of San Marcos residents were born in the United States, with 54.97% having been born in California. 10.54% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 94,693 | -23 | -0.02% |
| 2028 | 94,716 | -23 | -0.02% |
| 2027 | 94,739 | -23 | -0.02% |
| 2026 | 94,762 | -23 | -0.02% |
| 2025 | 94,785 | -23 | -0.02% |
| 2024 | 94,808 | -23 | -0.02% |
| 2023 | 94,831 | -23 | -0.02% |
| 2022 | 94,854 | 1,098 | 1.17% |
| 2021 | 93,756 | -1,144 | -1.21% |
| 2020 | 94,900 | -2,490 | -2.56% |
| 2019 | 97,390 | 992 | 1.03% |
| 2018 | 96,398 | 1,241 | 1.3% |
| 2017 | 95,157 | 607 | 0.64% |
| 2016 | 94,550 | 888 | 0.95% |
| 2015 | 93,662 | 1,737 | 1.89% |
| 2014 | 91,925 | 2,438 | 2.72% |
| 2013 | 89,487 | 2,711 | 3.12% |
| 2012 | 86,776 | 1,587 | 1.86% |
| 2011 | 85,189 | 1,241 | 1.48% |
| 2010 | 83,948 | 28,971 | 52.7% |
| 2000 | 54,977 | 16,003 | 41.06% |
| 1990 | 38,974 | 21,495 | 122.98% |
| 1980 | 17,479 | 13,583 | 348.64% |
| 1970 | 3,896 | 1,396 | 55.84% |
| 1960 | 2,500 | 0 | 0% |