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ZIP Code 90603
Whittier, CA, Los Angeles County
Population
21,118
Land area
3.2sq mi
People per sq mi
6,676
City
Whittier
ZIP 90603 and nearby ZIP codes
ZIP 90603 at a glance
- ZIP 90603 (Whittier) is about 26 times as dense as California as a whole.
- The median household income is $136,705, 38% above the California median of $99,122.
- A typical owner-occupied home is valued at $859,000 (17% above California) and median rent is $2,344 a month.
Local data for ZIP 90603
Counts from official public data
Housing and community stats
ZIP 90603, American Community Survey 2020-2024
Median household income
$136,705
Poverty rate
3.5%
Median home value
$859,000
Prices +3.1% in a year
Median rent
$2,344/mo
Homeownership
78.5%
Bachelor's or higher
34.2%
Median age
40.8
Average commute
32.0 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
458
ZIP Business Patterns 2023
Employees
5,612
$270M annual payroll
PPP loans
$24.3M
419 loans
Campaign donations
$55.2K
16% D, 43% R, 2026 cycle
Environment and hazard risk
ZIP 90603, from FEMA, NOAA and EPA
Natural hazard risk
Very High
Top: earthquake
Storm events since 1996
662
Countywide, mostly flash flood
Flood insurance policies
10,584
0.5% of homes, county
July high / Jan low
84° / 46°F
11.9 inches of rain a year
Health statistics
Share of adults in ZIP 90603, CDC PLACES estimates
Obesity
25.1%
U.S. 33.3% -8.2 pts
Diabetes
10.5%
U.S. 12.1% -1.6 pts
Smoking
8.4%
U.S. 12.8% -4.4 pts
Uninsured (18-64)
9.5%
U.S. 11.1% -1.6 pts
Frequently asked questions
- What city is ZIP code 90603?
- ZIP code 90603 is in Whittier, CA (Los Angeles County).
- What county is ZIP code 90603 in?
- ZIP code 90603 is mostly in Los Angeles County, California.
- How many people live in ZIP code 90603?
- About 21,118 people live in the 90603 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.