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ZIP Code 91978
Spring Valley, CA, San Diego County
Population
10,014
Land area
11.9sq mi
People per sq mi
839
City
Spring Valley
ZIP 91978 and nearby ZIP codes
ZIP 91978 at a glance
- ZIP 91978 (Spring Valley) is about 3.3 times as dense as California as a whole.
- The median household income is $113,170, 14% above the California median of $99,122.
- A typical owner-occupied home is valued at $637,200 (13% below California) and median rent is $2,327 a month.
Local data for ZIP 91978
Counts from official public data
Housing and community stats
ZIP 91978, American Community Survey 2020-2024
Median household income
$113,170
Poverty rate
10.2%
Median home value
$637,200
Prices +16.2% in a year
Median rent
$2,327/mo
Homeownership
67.9%
Bachelor's or higher
31.3%
Median age
42.5
Average commute
26.7 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
183
ZIP Business Patterns 2023
Employees
1,678
$86.3M annual payroll
PPP loans
$19.7M
274 loans
Campaign donations
$82.9K
17% D, 46% R, 2026 cycle
Environment and hazard risk
ZIP 91978, 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
86° / 43°F
11.6 inches of rain a year
Health statistics
Share of adults in ZIP 91978, CDC PLACES estimates
Obesity
27.6%
U.S. 33.3% -5.7 pts
Diabetes
10.7%
U.S. 12.1% -1.4 pts
Smoking
11.1%
U.S. 12.8% -1.7 pts
Uninsured (18-64)
9.5%
U.S. 11.1% -1.6 pts
Frequently asked questions
- What city is ZIP code 91978?
- ZIP code 91978 is in Spring Valley, CA (San Diego County).
- What county is ZIP code 91978 in?
- ZIP code 91978 is mostly in San Diego County, California.
- How many people live in ZIP code 91978?
- About 10,014 people live in the 91978 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.