92821 vs 91765 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 92821, Orange = ZIP 91765.
Quick verdict: ZIP 92821 is wealthier, more affordable rent, lower poverty rate, more diverse. ZIP 91765 is higher home values, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 92821
Brea city, CA
View full profile →- Population42,196
- Median Income$116,660
- Median Home Value$852k
- Median Rent$2,110
- Median Age39.7 yrs
- Poverty Rate6.2%
ZIP 91765
Diamond Bar city, CA
View full profile →- Population44,779
- Median Income$104,737
- Median Home Value$879k
- Median Rent$2,267
- Median Age45.7 yrs
- Poverty Rate10.2%
Visual comparison (same scale)
Population
42,19644,779
Median Income
$116,660$104,737
Median Home Value
$852k$879k
Median Rent
$2,110$2,267
Median Age
39.7 yrs45.7 yrs
Poverty Rate
6.2%10.2%
Demographics
ZIP 92821
Brea city, CA
View full profile →- White %49.0%
- Black %1.4%
- Asian %24.4%
- Hispanic %32.0%
- Age 0–17 %22.6%
- Age 18–64 %60.3%
- Age 65+ %17.1%
- Bachelor's+ %48.7%
- Diversity Index60/100
ZIP 91765
Diamond Bar city, CA
View full profile →- White %17.9%
- Black %3.5%
- Asian %60.7%
- Hispanic %17.1%
- Age 0–17 %18.9%
- Age 18–64 %60.3%
- Age 65+ %20.8%
- Bachelor's+ %53.4%
- Diversity Index57/100
Visual comparison (same scale)
White %
49.0%17.9%
Black %
1.4%3.5%
Asian %
24.4%60.7%
Hispanic %
32.0%17.1%
Age 0–17 %
22.6%18.9%
Age 18–64 %
60.3%60.3%
Age 65+ %
17.1%20.8%
Bachelor's+ %
48.7%53.4%
Diversity Index
60/10057/100
Economy
ZIP 92821
Brea city, CA
View full profile →- Median Income$116,660
- Unemployment %5.6%
- IRS Net Migration+2,077
- Work From Home %12.2%
ZIP 91765
Diamond Bar city, CA
View full profile →- Median Income$104,737
- Unemployment %5.3%
- IRS Net Migration+2,204
- Work From Home %15.6%
Visual comparison (same scale)
Median Income
$116,660$104,737
Unemployment %
5.6%5.3%
IRS Net Migration
+2,077+2,204
Work From Home %
12.2%15.6%
Housing
ZIP 92821
Brea city, CA
View full profile →- Median Home Value$852k
- Median Rent$2,110
- Owner Occupied %58.0%
- Broadband %95.2%
- Vacant %2.9%
- Median Year Built1976
ZIP 91765
Diamond Bar city, CA
View full profile →- Median Home Value$879k
- Median Rent$2,267
- Owner Occupied %77.2%
- Broadband %94.7%
- Vacant %4.0%
- Median Year Built1979
Visual comparison (same scale)
Median Home Value
$852k$879k
Median Rent
$2,110$2,267
Owner Occupied %
58.0%77.2%
Broadband %
95.2%94.7%
Vacant %
2.9%4.0%
Median Year Built
19761979
Climate & Location
ZIP 92821
Brea city, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)235 ft
- Nearest Airport16.9 miles (27.2 km)
- Distance to Coast16.0 miles (25.8 km)
ZIP 91765
Diamond Bar city, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)999 ft
- Nearest Airport13.5 miles (21.7 km)
- Distance to Coast21.4 miles (34.4 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
235 ft999 ft
Nearest Airport
16.9 miles (27.2 km)13.5 miles (21.7 km)
Distance to Coast
16.0 miles (25.8 km)21.4 miles (34.4 km)
Infrastructure
ZIP 91765
Diamond Bar city, CA
View full profile →- Work From Home %15.6%
- Walkability (0–100)58
- Broadband %94.7%
Visual comparison (same scale)
Work From Home %
12.2%15.6%
Walkability (0–100)
6958
Broadband %
95.2%94.7%
Frequently Asked Questions
How do ZIP 92821 and 91765 compare?
ZIP 92821 is wealthier, more affordable rent, lower poverty rate, more diverse. ZIP 91765 is higher home values, lower unemployment, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (92821), orange the second (91765). 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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