Lake San Marcos is a city located in San Diego County California. Lake San Marcos has a 2024 population of 3,986. Lake San Marcos is currently declining at a rate of -1.17% annually but its population has increased by 0.73% since the most recent census, which recorded a population of 3,957 in 2020.
The average household income in Lake San Marcos is $119,917 with a poverty rate of 5.16%. The median age in Lake San Marcos is 64.5 years: 61.4 years for males, and 66.8 years for females.
According to the most recent ACS, the racial composition of Lake San Marcos was:
White
Two or more races
Asian
Other race
Black or African American
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 2,136 | 1.89 | 81.3 | 18.7 |
| Non Family | 972 | 1.21 | 80.6 | 19.4 |
| Married | 914 | 2.43 | 86.8 | 13.2 |
| Female | 234 | 2.55 | 62 | 38 |
| Male | 16 | 1.94 | 100 | 0 |
2.41
Average Family Size
1.89
Average Household Size
81.3%
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 other race people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 75.17%.
All
Male
Female
$47,200
Average Earnings
$64,196
Average Male
$33,618
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
88.06% of Lake San Marcos residents speak only English, while 11.94% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 5.34% of the population.
rate
5.16%
Overall Poverty Rate
5.13%
Male Poverty Rate
5.19%
Female Poverty Rate
The race most likely to be in poverty in Lake San Marcos is Black, with 100% below the poverty level.
The race least likely to be in poverty in Lake San Marcos is White, with 4.98% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 5.77%, and for those that did not work, the poverty rate was 6.55%.
Married
Widowed
Divorced
Separated
NeverMarried
48.4%
Overall Marriage Rate
52.6%
Male Marriage Rate
44.8%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, 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
5.6%
Veteran Poverty Rate
43.4%
Veteran Disability Rate
LaborForceParticipation
47.7%
Labor Force Participation
45.6%
Employment Rate
4.5%
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
43.5%
Born in Lake San Marcos
86.57%
Native Born
13.43%
Foreign Born
2.89%
Non Citizen
10.54%
Naturalized
86.57% of Lake San Marcos residents were born in the United States, with 43.5% having been born in California. 2.89% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2024 | 3,986 | -47 | -1.17% |
| 2023 | 4,033 | -47 | -1.15% |
| 2022 | 4,080 | -47 | -1.14% |
| 2021 | 4,127 | 170 | 4.3% |
| 2020 | 3,957 | -756 | -16.04% |
| 2019 | 4,713 | -177 | -3.62% |
| 2018 | 4,890 | -34 | -0.69% |
| 2017 | 4,924 | 395 | 8.72% |
| 2016 | 4,529 | -269 | -5.61% |
| 2015 | 4,798 | 119 | 2.54% |
| 2014 | 4,679 | 391 | 9.12% |
| 2013 | 4,288 | -267 | -5.86% |
| 2012 | 4,555 | -685 | -13.07% |
| 2011 | 5,240 | 803 | 18.1% |
| 2010 | 4,437 | 0 | 0% |