CensusEasy
ZIP CODE TABULATION AREA

91331

California · 97,608 residents · 9.345 sq mi
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ZIP 91331 has roughly average household income, with a median household income of $84,227. Population has held roughly steady since 2024. 11% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value is $633,200. Despite a median home value of $633,200, the poverty rate sits 30% above the US average — a pattern often seen in resort and college towns. Among the 276 ZIP codes in Los Angeles County, 91331 ranks 174th by median household income.

$84,227
US average: $82,259
$633,200
US average: $376,019
11.0%
US average: 35.6%
Age, sex & households
Under 18
23.7%
Age 65+
12.9%
51.3%
48.7%
4.17 people
Race & ethnicity · 2024
2024
White, non-Hispanic3.8%(3,745)
Black1.8%(1,731)
Hispanic / Latino88.3%(86,227)
Asian4.7%(4,580)
Other1.4%(1,325)
Diversity Score26.9%(26,285)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Los Angeles County
Income rank vs other ZIPs
LOWEST174TH OF 276HIGHEST
Adjacent ZIPs
90001$60,767
90002$59,021
90003$56,030
90004$64,826
Frequently asked

How many people live in ZIP code 91331?

ZIP code 91331 has about 97,608 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 91331?

The typical household in ZIP code 91331 earns about $84,227 a year. Half of households make more than that, and half make less.

Is ZIP code 91331 expensive?

In ZIP code 91331, the median home is worth about $633,200, and the typical rent is about $1,844 a month.

How educated are people in ZIP code 91331?

About 11.0% of adults age 25 and over in ZIP code 91331 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 91331?

About 16.2% of people in ZIP code 91331 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024