ZIP Code Tabulation Area · California

ZIP Code 91978: Spring Valley, CA

ZIP Code 91978 (Spring Valley, San Diego County, California) has an estimated 10,014 residents in 3,236 households. The median household income is $113,170, the median home value is $637,200 and the median gross rent is $2,327/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

10,014

Margin of error ±1,084

Median household income

$113,170

Margin of error ±$11,519

Median home value

$637,200

Margin of error ±$80,393

Median gross rent

$2,327/mo

Margin of error ±$246

Median age

42.5 yrs

Margin of error ±4.0 yrs

Mean travel time to work

26.7 min

Margin of error ±6.0 min

How ZIP 91978 compares with California and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 9197842.5 yrsCalifornia37.9 yrsUnited States38.9 yrs

Median household income

ZIP 91978$113,170California$99,122United States$80,734

Per capita income

ZIP 91978$44,103California$49,513United States$44,673

Poverty rate

ZIP 9197810.2%California12.0%United States12.5%

Unemployment rate

ZIP 919789.3%California6.6%United States5.2%

Bachelor's degree or higher

ZIP 9197831.3%California37.1%United States35.7%

Median home value

ZIP 91978$637,200California$734,700United States$332,700

Median gross rent

ZIP 91978$2,327/moCalifornia$2,036/moUnited States$1,413/mo

Owner-occupied homes

ZIP 9197867.9%California55.9%United States65.2%

Mean travel time to work

ZIP 9197826.7 minCalifornia28.7 minUnited States26.4 min

Worked from home

ZIP 9197811.3%California17.2%United States15.1%

All figures for ZIP 91978

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 91978 — ACS 2020–2024 5-year estimates
MeasureZIP 91978Margin of errorCaliforniaUnited States
Total population10,014±1,08439,287,377334,922,499
Median age42.5 yrs±4.0 yrs37.9 yrs38.9 yrs
Households3,236±27913,548,091129,227,496
Median household income$113,170±$11,519$99,122$80,734
Per capita income$44,103±$4,413$49,513$44,673
Poverty rate10.2%±5.4 pts12.0%12.5%
Unemployment rate9.3%±4.1 pts6.6%5.2%
Bachelor's degree or higher31.3%±2.6 pts37.1%35.7%
Median home value$637,200±$80,393$734,700$332,700
Median gross rent$2,327/mo±$246$2,036/mo$1,413/mo
Owner-occupied homes67.9%±7.5 pts55.9%65.2%
Mean travel time to work26.7 min±6.0 min28.7 min26.4 min
Worked from home11.3%±4.4 pts17.2%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 91978
GroupZIP 91978CaliforniaUnited States
White alone, not Hispanic or Latino41.5%33.8%57.4%
Black or African American alone, not Hispanic or Latino10.2%5.2%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.3%0.5%
Asian alone, not Hispanic or Latino6.5%15.3%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.2%0.3%0.2%
Some other race alone, not Hispanic or Latino0.9%0.6%0.6%
Two or more races, not Hispanic or Latino6.6%4.4%4.3%
Hispanic or Latino (of any race)34.1%40.2%19.3%

Where ZIP 91978 is

State
California
Main county
San Diego County
Largest overlapping place
Spring Valley (31% of the ZIP's land area)
Land area
11.94 sq mi· about 839 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in San Diego County

91932 Imperial Beach, CA91934 San Diego County, CA91935 San Diego County, CA91941 Casa de Oro-Mount Helix, CA91942 La Mesa, CA91945 Lemon Grove, CA91948 San Diego County, CA91950 National City, CA91962 San Diego County, CA91963 San Diego County, CA91977 La Presa, CA91980 San Diego County, CA92003 Bonsall, CA92004 San Diego County, CA92007 Encinitas, CA92008 Carlsbad, CA92009 Carlsbad, CA92010 Carlsbad, CA92011 Carlsbad, CA92014 San Diego, CA92019 Rancho San Diego, CA92020 El Cajon, CA92021 San Diego County, CA92024 Encinitas, CA

See every ZIP code in California, or compare ZIP 91978 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.