20621 vs 20645 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 20621, Orange = ZIP 20645.
Quick verdict: ZIP 20621 is higher home values. ZIP 20645 is wealthier, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share.
Quick Facts
ZIP 20621
MD
View full profile →- Population902
- Median Income$0
- Median Home Value$563k
- Median Age60.2 yrs
- Poverty Rate12.2%
ZIP 20645
MD
View full profile →- Population717
- Median Income$176,591
- Median Home Value$516k
- Median Age54.6 yrs
- Poverty Rate0.0%
Visual comparison (same scale)
Population
902717
Median Income
$0$176,591
Median Home Value
$563k$516k
Median Age
60.2 yrs54.6 yrs
Poverty Rate
12.2%0.0%
Demographics
ZIP 20621
MD
View full profile →- White %92.5%
- Black %7.5%
- Asian %0.0%
- Hispanic %0.0%
- Age 0–17 %7.4%
- Age 18–64 %68.4%
- Age 65+ %24.2%
- Bachelor's+ %8.5%
- Diversity Index14/100
ZIP 20645
MD
View full profile →- White %88.6%
- Black %1.9%
- Asian %0.0%
- Hispanic %0.0%
- Age 0–17 %22.9%
- Age 18–64 %48.8%
- Age 65+ %28.3%
- Bachelor's+ %43.0%
- Diversity Index21/100
Visual comparison (same scale)
White %
92.5%88.6%
Black %
7.5%1.9%
Asian %
0.0%0.0%
Hispanic %
0.0%0.0%
Age 0–17 %
7.4%22.9%
Age 18–64 %
68.4%48.8%
Age 65+ %
24.2%28.3%
Bachelor's+ %
8.5%43.0%
Diversity Index
14/10021/100
Economy
ZIP 20621
MD
View full profile →- Median Income$0
- Unemployment %4.3%
- IRS Net Migration+53
- Work From Home %8.1%
ZIP 20645
MD
View full profile →- Median Income$176,591
- Unemployment %0.0%
- IRS Net Migration+42
- Work From Home %36.0%
Visual comparison (same scale)
Median Income
$0$176,591
Unemployment %
4.3%0.0%
IRS Net Migration
+53+42
Work From Home %
8.1%36.0%
Housing
ZIP 20621
MD
View full profile →- Median Home Value$563k
- Owner Occupied %97.5%
- Broadband %56.3%
- Vacant %31.3%
- Median Year Built1978
ZIP 20645
MD
View full profile →- Median Home Value$516k
- Owner Occupied %95.7%
- Broadband %88.8%
- Vacant %0.0%
- Median Year Built1994
Visual comparison (same scale)
Median Home Value
$563k$516k
Owner Occupied %
97.5%95.7%
Broadband %
56.3%88.8%
Vacant %
31.3%0.0%
Median Year Built
19781994
Climate & Location
ZIP 20621
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)100 ft
- Nearest Airport21.3 miles (34.3 km)
- Distance to Coast1.5 miles (2.4 km)
ZIP 20645
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)100 ft
- Nearest Airport25.4 miles (40.8 km)
- Distance to Coast0.4 miles (0.6 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
100 ft100 ft
Nearest Airport
21.3 miles (34.3 km)25.4 miles (40.8 km)
Distance to Coast
1.5 miles (2.4 km)0.4 miles (0.6 km)
Infrastructure
Visual comparison (same scale)
Work From Home %
8.1%36.0%
Walkability (0–100)
2025
Broadband %
56.3%88.8%
Frequently Asked Questions
How do ZIP 20621 and 20645 compare?
ZIP 20621 is higher home values. ZIP 20645 is wealthier, 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 (20621), orange the second (20645). 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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