92021 vs 91978 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 92021, Orange = ZIP 91978.
Quick verdict: ZIP 92021 is more affordable rent. ZIP 91978 is wealthier, higher home values, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share.
Quick Facts
ZIP 92021
Harbison Canyon CDP, CA
View full profile →- Population69,306
- Median Income$69,979
- Median Home Value$572k
- Median Rent$1,684
- Median Age36.0 yrs
- Poverty Rate18.2%
ZIP 91978
Spring Valley CDP, CA
View full profile →- Population10,511
- Median Income$111,506
- Median Home Value$597k
- Median Rent$2,089
- Median Age38.4 yrs
- Poverty Rate13.4%
Visual comparison (same scale)
Population
69,30610,511
Median Income
$69,979$111,506
Median Home Value
$572k$597k
Median Rent
$1,684$2,089
Median Age
36.0 yrs38.4 yrs
Poverty Rate
18.2%13.4%
Demographics
ZIP 92021
Harbison Canyon CDP, CA
View full profile →- White %60.7%
- Black %6.4%
- Asian %5.3%
- Hispanic %28.2%
- Age 0–17 %25.2%
- Age 18–64 %59.4%
- Age 65+ %15.4%
- Bachelor's+ %22.1%
- Diversity Index54/100
ZIP 91978
Spring Valley CDP, CA
View full profile →- White %45.0%
- Black %11.5%
- Asian %6.1%
- Hispanic %36.7%
- Age 0–17 %23.6%
- Age 18–64 %62.3%
- Age 65+ %14.1%
- Bachelor's+ %30.6%
- Diversity Index65/100
Visual comparison (same scale)
White %
60.7%45.0%
Black %
6.4%11.5%
Asian %
5.3%6.1%
Hispanic %
28.2%36.7%
Age 0–17 %
25.2%23.6%
Age 18–64 %
59.4%62.3%
Age 65+ %
15.4%14.1%
Bachelor's+ %
22.1%30.6%
Diversity Index
54/10065/100
Economy
ZIP 92021
Harbison Canyon CDP, CA
View full profile →- Median Income$69,979
- Unemployment %8.0%
- IRS Net Migration+3,411
- Work From Home %9.3%
ZIP 91978
Spring Valley CDP, CA
View full profile →- Median Income$111,506
- Unemployment %6.9%
- IRS Net Migration+517
- Work From Home %12.1%
Visual comparison (same scale)
Median Income
$69,979$111,506
Unemployment %
8.0%6.9%
IRS Net Migration
+3,411+517
Work From Home %
9.3%12.1%
Housing
ZIP 92021
Harbison Canyon CDP, CA
View full profile →- Median Home Value$572k
- Median Rent$1,684
- Owner Occupied %52.8%
- Broadband %92.5%
- Vacant %3.4%
- Median Year Built1977
ZIP 91978
Spring Valley CDP, CA
View full profile →- Median Home Value$597k
- Median Rent$2,089
- Owner Occupied %65.8%
- Broadband %94.3%
- Vacant %2.2%
- Median Year Built1979
Visual comparison (same scale)
Median Home Value
$572k$597k
Median Rent
$1,684$2,089
Owner Occupied %
52.8%65.8%
Broadband %
92.5%94.3%
Vacant %
3.4%2.2%
Median Year Built
19771979
Climate & Location
ZIP 92021
Harbison Canyon CDP, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)495 ft
- Nearest Airport16.0 miles (25.7 km)
- Distance to Coast19.3 miles (31.1 km)
ZIP 91978
Spring Valley CDP, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)495 ft
- Nearest Airport10.7 miles (17.3 km)
- Distance to Coast11.6 miles (18.6 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
495 ft495 ft
Nearest Airport
16.0 miles (25.7 km)10.7 miles (17.3 km)
Distance to Coast
19.3 miles (31.1 km)11.6 miles (18.6 km)
Infrastructure
ZIP 92021
Harbison Canyon CDP, CA
View full profile →- Work From Home %9.3%
- Walkability (0–100)62
- Broadband %92.5%
ZIP 91978
Spring Valley CDP, CA
View full profile →- Work From Home %12.1%
- Walkability (0–100)60
- Broadband %94.3%
Visual comparison (same scale)
Work From Home %
9.3%12.1%
Walkability (0–100)
6260
Broadband %
92.5%94.3%
Frequently Asked Questions
How do ZIP 92021 and 91978 compare?
ZIP 92021 is more affordable rent. ZIP 91978 is wealthier, higher home values, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (92021), orange the second (91978). 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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