90604 vs 90621 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 90604, Orange = ZIP 90621.
Quick verdict: ZIP 90604 is wealthier, more affordable rent, lower poverty rate, lower unemployment, higher work-from-home share. ZIP 90621 is higher home values, more diverse, more educated.
Quick Facts
ZIP 90604
South Whittier CDP, CA
View full profile →- Population39,378
- Median Income$101,104
- Median Home Value$684k
- Median Rent$1,692
- Median Age36.2 yrs
- Poverty Rate5.9%
ZIP 90621
Buena Park city, CA
View full profile →- Population35,735
- Median Income$94,679
- Median Home Value$734k
- Median Rent$1,891
- Median Age37.0 yrs
- Poverty Rate10.7%
Visual comparison (same scale)
Population
39,37835,735
Median Income
$101,104$94,679
Median Home Value
$684k$734k
Median Rent
$1,692$1,891
Median Age
36.2 yrs37.0 yrs
Poverty Rate
5.9%10.7%
Demographics
ZIP 90604
South Whittier CDP, CA
View full profile →- White %35.1%
- Black %1.2%
- Asian %8.4%
- Hispanic %68.2%
- Age 0–17 %23.7%
- Age 18–64 %63.7%
- Age 65+ %12.6%
- Bachelor's+ %23.4%
- Diversity Index40/100
ZIP 90621
Buena Park city, CA
View full profile →- White %26.8%
- Black %2.6%
- Asian %35.9%
- Hispanic %47.2%
- Age 0–17 %22.8%
- Age 18–64 %65.0%
- Age 65+ %12.2%
- Bachelor's+ %31.5%
- Diversity Index58/100
Visual comparison (same scale)
White %
35.1%26.8%
Black %
1.2%2.6%
Asian %
8.4%35.9%
Hispanic %
68.2%47.2%
Age 0–17 %
23.7%22.8%
Age 18–64 %
63.7%65.0%
Age 65+ %
12.6%12.2%
Bachelor's+ %
23.4%31.5%
Diversity Index
40/10058/100
Economy
ZIP 90604
South Whittier CDP, CA
View full profile →- Median Income$101,104
- Unemployment %3.3%
- IRS Net Migration+1,938
- Work From Home %8.8%
ZIP 90621
Buena Park city, CA
View full profile →- Median Income$94,679
- Unemployment %6.3%
- IRS Net Migration+1,759
- Work From Home %7.1%
Visual comparison (same scale)
Median Income
$101,104$94,679
Unemployment %
3.3%6.3%
IRS Net Migration
+1,938+1,759
Work From Home %
8.8%7.1%
Housing
ZIP 90604
South Whittier CDP, CA
View full profile →- Median Home Value$684k
- Median Rent$1,692
- Owner Occupied %63.8%
- Broadband %90.5%
- Vacant %3.9%
- Median Year Built1960
ZIP 90621
Buena Park city, CA
View full profile →- Median Home Value$734k
- Median Rent$1,891
- Owner Occupied %37.0%
- Broadband %94.3%
- Vacant %2.6%
- Median Year Built1975
Visual comparison (same scale)
Median Home Value
$684k$734k
Median Rent
$1,692$1,891
Owner Occupied %
63.8%37.0%
Broadband %
90.5%94.3%
Vacant %
3.9%2.6%
Median Year Built
19601975
Climate & Location
ZIP 90604
South Whittier CDP, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)96 ft
- Nearest Airport10.9 miles (17.6 km)
- Distance to Coast11.7 miles (18.8 km)
ZIP 90621
Buena Park city, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)96 ft
- Nearest Airport9.8 miles (15.8 km)
- Distance to Coast9.2 miles (14.8 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
96 ft96 ft
Nearest Airport
10.9 miles (17.6 km)9.8 miles (15.8 km)
Distance to Coast
11.7 miles (18.8 km)9.2 miles (14.8 km)
Infrastructure
ZIP 90604
South Whittier CDP, CA
View full profile →- Work From Home %8.8%
- Walkability (0–100)65
- Broadband %90.5%
ZIP 90621
Buena Park city, CA
View full profile →- Work From Home %7.1%
- Walkability (0–100)74
- Broadband %94.3%
Visual comparison (same scale)
Work From Home %
8.8%7.1%
Walkability (0–100)
6574
Broadband %
90.5%94.3%
Frequently Asked Questions
How do ZIP 90604 and 90621 compare?
ZIP 90604 is wealthier, more affordable rent, lower poverty rate, lower unemployment, higher work-from-home share. ZIP 90621 is higher home values, more diverse, more educated.
What do the blue and orange colors mean?
Blue represents the first ZIP (90604), orange the second (90621). The same colors are used in the map markers and comparison bars.
Where does this data come from?
Data is from the U.S. Census Bureau and other federal sources. See our Methodology page for details.
How can I compare other ZIP codes?
From any ZIP page, use the "Compare with Another ZIP" tool, or go to /compare/XXXXX-vs-YYYYY (replace with two 5-digit ZIP codes).
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