92078   Zip Code San Marcos San Diego CA United States

City San Marcos
County San Diego
State California
Latitude 33.11834
Longitude -117.18554
Population 53,605
Density 3210.62 people per square mile
Time Zone America/Los Angeles
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $120,268
Median individual: $51,426

Race

Mode: 57.7% White

Gender

 51.3% female 

Rent

  $2567 / month  

Median house value: $929,191.0

Age

Median: 38.8 years old

Education

With at least college degree: 49.2%
With STEM degree: 48.5%

Marital Status

 56.8% married 

Never married: 28.2%

Labor Force Participation

 62.1% working 

Unemployed: 4.4%

Average Family Size

 3.28 people 

Commute Time

 26.5 minutes 

Health Care

 5.1% uninsured 

Poverty

 7.0%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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