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ZIP Code 92078
San Marcos, CA, San Diego County
Population
53,605
Land area
16.7sq mi
People per sq mi
3,210
City
San Marcos
ZIP 92078 and nearby ZIP codes
ZIP 92078 at a glance
- ZIP 92078 (San Marcos) is about 13 times as dense as California as a whole.
- The median household income is $120,268, 21% above the California median of $99,122.
- A typical owner-occupied home is valued at $942,300 (28% above California) and median rent is $2,567 a month.
Local data for ZIP 92078
Counts from official public data
Housing and community stats
ZIP 92078, American Community Survey 2020-2024
Median household income
$120,268
Poverty rate
7.0%
Median home value
$942,300
Prices -6.7% in a year
Median rent
$2,567/mo
Homeownership
72.0%
Bachelor's or higher
49.2%
Median age
38.8
Average commute
26.5 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
1,458
ZIP Business Patterns 2023
Employees
16,140
$918M annual payroll
PPP loans
$139M
1,685 loans
Campaign donations
$210K
33% D, 28% R, 2026 cycle
Environment and hazard risk
ZIP 92078, from FEMA, NOAA and EPA
Natural hazard risk
Very High
Top: wildfire
Storm events since 1996
2,698
Countywide, mostly high wind
Flood insurance policies
6,088
0.7% of homes, county
July high / Jan low
74° / 48°F
11.4 inches of rain a year
Health statistics
Share of adults in ZIP 92078, CDC PLACES estimates
Obesity
23.8%
U.S. 33.3% -9.5 pts
Diabetes
9.4%
U.S. 12.1% -2.7 pts
Smoking
8.6%
U.S. 12.8% -4.2 pts
Uninsured (18-64)
6.6%
U.S. 11.1% -4.5 pts
Cities in ZIP 92078
ZIP codes near 92078
| Name | Distance | Land area (sq mi) |
|---|---|---|
| 92096San Marcos | 1.7 mi | 0.3 |
| 92029Harmony Grove | 3.6 mi | 22.6 |
| 92009Carlsbad | 3.9 mi | 12.2 |
| 92081Vista | 4.1 mi | 8.9 |
| 92069San Marcos | 4.2 mi | 18.5 |
| 92091Elfin Forest | 4.7 mi | 1.3 |
| 92024Encinitas | 6.3 mi | 18 |
| 92011Carlsbad | 6.5 mi | 6.5 |
| 92010Carlsbad | 6.6 mi | 8.2 |
| 92083Vista | 6.7 mi | 5.5 |
| 92084Vista | 6.8 mi | 28.3 |
| 92067Rancho Santa Fe | 7.4 mi | 22.4 |
Frequently asked questions
- What city is ZIP code 92078?
- ZIP code 92078 is in San Marcos, CA (San Diego County).
- What county is ZIP code 92078 in?
- ZIP code 92078 is mostly in San Diego County, California.
- How many people live in ZIP code 92078?
- About 53,605 people live in the 92078 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.