21090 vs 21230 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21090, Orange = ZIP 21230.
Quick verdict: ZIP 21090 is wealthier, higher home values, lower poverty rate, lower unemployment. ZIP 21230 is more affordable rent, more diverse, more educated, higher work-from-home share.
Quick Facts
ZIP 21090
Linthicum CDP, MD
View full profile →- Population10,033
- Median Income$124,688
- Median Home Value$374k
- Median Rent$1,760
- Median Age38.3 yrs
- Poverty Rate3.0%
ZIP 21230
Baltimore city, MD
View full profile →- Population33,509
- Median Income$94,164
- Median Home Value$328k
- Median Rent$1,527
- Median Age33.0 yrs
- Poverty Rate15.8%
Visual comparison (same scale)
Population
10,03333,509
Median Income
$124,688$94,164
Median Home Value
$374k$328k
Median Rent
$1,760$1,527
Median Age
38.3 yrs33.0 yrs
Poverty Rate
3.0%15.8%
Demographics
ZIP 21090
Linthicum CDP, MD
View full profile →- White %81.1%
- Black %6.6%
- Asian %4.0%
- Hispanic %4.3%
- Age 0–17 %23.4%
- Age 18–64 %59.8%
- Age 65+ %16.8%
- Bachelor's+ %42.8%
- Diversity Index33/100
ZIP 21230
Baltimore city, MD
View full profile →- White %56.7%
- Black %23.1%
- Asian %3.6%
- Hispanic %13.0%
- Age 0–17 %19.3%
- Age 18–64 %69.7%
- Age 65+ %11.0%
- Bachelor's+ %58.9%
- Diversity Index61/100
Visual comparison (same scale)
White %
81.1%56.7%
Black %
6.6%23.1%
Asian %
4.0%3.6%
Hispanic %
4.3%13.0%
Age 0–17 %
23.4%19.3%
Age 18–64 %
59.8%69.7%
Age 65+ %
16.8%11.0%
Bachelor's+ %
42.8%58.9%
Diversity Index
33/10061/100
Economy
ZIP 21090
Linthicum CDP, MD
View full profile →- Median Income$124,688
- Unemployment %2.6%
- IRS Net Migration+589
- Work From Home %16.0%
ZIP 21230
Baltimore city, MD
View full profile →- Median Income$94,164
- Unemployment %3.4%
- IRS Net Migration+1,969
- Work From Home %19.9%
Visual comparison (same scale)
Median Income
$124,688$94,164
Unemployment %
2.6%3.4%
IRS Net Migration
+589+1,969
Work From Home %
16.0%19.9%
Housing
ZIP 21090
Linthicum CDP, MD
View full profile →- Median Home Value$374k
- Median Rent$1,760
- Owner Occupied %84.1%
- Broadband %92.2%
- Vacant %8.1%
- Median Year Built1960
ZIP 21230
Baltimore city, MD
View full profile →- Median Home Value$328k
- Median Rent$1,527
- Owner Occupied %49.6%
- Broadband %89.4%
- Vacant %11.4%
- Median Year Built1946
Visual comparison (same scale)
Median Home Value
$374k$328k
Median Rent
$1,760$1,527
Owner Occupied %
84.1%49.6%
Broadband %
92.2%89.4%
Vacant %
8.1%11.4%
Median Year Built
19601946
Climate & Location
ZIP 21090
Linthicum CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)156 ft
- Nearest Airport2.2 miles (3.6 km)
- Distance to Coast1.9 miles (3.1 km)
ZIP 21230
Baltimore city, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)20 ft
- Nearest Airport6.8 miles (10.9 km)
- Distance to Coast1.6 miles (2.6 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
156 ft20 ft
Nearest Airport
2.2 miles (3.6 km)6.8 miles (10.9 km)
Distance to Coast
1.9 miles (3.1 km)1.6 miles (2.6 km)
Infrastructure
ZIP 21090
Linthicum CDP, MD
View full profile →- Work From Home %16.0%
- Walkability (0–100)51
- Broadband %92.2%
ZIP 21230
Baltimore city, MD
View full profile →- Work From Home %19.9%
- Walkability (0–100)80
- Broadband %89.4%
Visual comparison (same scale)
Work From Home %
16.0%19.9%
Walkability (0–100)
5180
Broadband %
92.2%89.4%
Frequently Asked Questions
How do ZIP 21090 and 21230 compare?
ZIP 21090 is wealthier, higher home values, lower poverty rate, lower unemployment. ZIP 21230 is more affordable rent, more diverse, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21090), orange the second (21230). 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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