21155 vs 21120 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21155, Orange = ZIP 21120.
Quick verdict: ZIP 21155 is more affordable rent, lower unemployment. ZIP 21120 is wealthier, higher home values, lower poverty rate, more diverse, more educated, higher work-from-home share.
Quick Facts
ZIP 21155
MD
View full profile →- Population3,124
- Median Income$124,219
- Median Home Value$538k
- Median Rent$1,186
- Median Age37.1 yrs
- Poverty Rate5.6%
ZIP 21120
MD
View full profile →- Population7,286
- Median Income$157,275
- Median Home Value$552k
- Median Rent$1,338
- Median Age41.4 yrs
- Poverty Rate2.7%
Visual comparison (same scale)
Population
3,1247,286
Median Income
$124,219$157,275
Median Home Value
$538k$552k
Median Rent
$1,186$1,338
Median Age
37.1 yrs41.4 yrs
Poverty Rate
5.6%2.7%
Demographics
ZIP 21155
MD
View full profile →- White %95.0%
- Black %1.5%
- Asian %1.1%
- Hispanic %1.8%
- Age 0–17 %25.4%
- Age 18–64 %54.5%
- Age 65+ %20.1%
- Bachelor's+ %48.8%
- Diversity Index10/100
ZIP 21120
MD
View full profile →- White %88.1%
- Black %1.6%
- Asian %3.0%
- Hispanic %4.6%
- Age 0–17 %27.0%
- Age 18–64 %55.8%
- Age 65+ %17.2%
- Bachelor's+ %62.0%
- Diversity Index22/100
Visual comparison (same scale)
White %
95.0%88.1%
Black %
1.5%1.6%
Asian %
1.1%3.0%
Hispanic %
1.8%4.6%
Age 0–17 %
25.4%27.0%
Age 18–64 %
54.5%55.8%
Age 65+ %
20.1%17.2%
Bachelor's+ %
48.8%62.0%
Diversity Index
10/10022/100
Economy
ZIP 21155
MD
View full profile →- Median Income$124,219
- Unemployment %1.9%
- IRS Net Migration+184
- Work From Home %15.5%
ZIP 21120
MD
View full profile →- Median Income$157,275
- Unemployment %2.2%
- IRS Net Migration+428
- Work From Home %22.9%
Visual comparison (same scale)
Median Income
$124,219$157,275
Unemployment %
1.9%2.2%
IRS Net Migration
+184+428
Work From Home %
15.5%22.9%
Housing
ZIP 21155
MD
View full profile →- Median Home Value$538k
- Median Rent$1,186
- Owner Occupied %82.8%
- Broadband %86.1%
- Vacant %4.6%
- Median Year Built1972
ZIP 21120
MD
View full profile →- Median Home Value$552k
- Median Rent$1,338
- Owner Occupied %94.9%
- Broadband %97.2%
- Vacant %1.1%
- Median Year Built1986
Visual comparison (same scale)
Median Home Value
$538k$552k
Median Rent
$1,186$1,338
Owner Occupied %
82.8%94.9%
Broadband %
86.1%97.2%
Vacant %
4.6%1.1%
Median Year Built
19721986
Climate & Location
ZIP 21155
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)860 ft
- Nearest Airport27.1 miles (43.5 km)
- Distance to Coast22.1 miles (35.5 km)
ZIP 21120
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)860 ft
- Nearest Airport26.2 miles (42.1 km)
- Distance to Coast23.7 miles (38.1 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
860 ft860 ft
Nearest Airport
27.1 miles (43.5 km)26.2 miles (42.1 km)
Distance to Coast
22.1 miles (35.5 km)23.7 miles (38.1 km)
Infrastructure
Visual comparison (same scale)
Work From Home %
15.5%22.9%
Walkability (0–100)
2828
Broadband %
86.1%97.2%
Frequently Asked Questions
How do ZIP 21155 and 21120 compare?
ZIP 21155 is more affordable rent, lower unemployment. ZIP 21120 is wealthier, higher home values, lower poverty rate, more diverse, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21155), orange the second (21120). 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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