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ZIP CodeStandard

91789

Walnut, CA

ZIP Code 91789 in Walnut, CA has a population of 41,235 and a median household income of $125,720. Explore Census demographics, housing, and a map.

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
41,235
People
Median age
46.3
Housing
Total households
12,681
Income
Median household income
$125,720
Housing
Total housing units
13,503
Employment
Employment rate
56.3%
Education
Bachelor’s degree or higher
54.4%
Healthcare
Insured population
95.9%
ZIP details
Local time 23:03:52(PT)
LocationWalnut, CA
CountyLos Angeles
Area code
TimezonePacific Time (PT)
Coordinates34.0181949, -117.8548209
Land area15.9 sq miles(41,095,406 m²)

Map of ZIP Code 91789 — Walnut, CA

Map of ZIP Code 91789 — Walnut, CA

Nearby ZIP codes

ZIP codes near 91789.

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS