21850 vs 21837 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21850, Orange = ZIP 21837.
Quick verdict: ZIP 21850 is wealthier, higher home values, higher work-from-home share. ZIP 21837 is more affordable rent, lower poverty rate, lower unemployment, more diverse, more educated.
Quick Facts
ZIP 21850
Powellville CDP, MD
View full profile →- Population3,733
- Median Income$76,667
- Median Home Value$224k
- Median Rent$725
- Median Age43.7 yrs
- Poverty Rate10.3%
ZIP 21837
Mardela Springs town, MD
View full profile →- Population2,975
- Median Income$71,667
- Median Home Value$206k
- Median Rent$597
- Median Age39.7 yrs
- Poverty Rate4.9%
Visual comparison (same scale)
Population
3,7332,975
Median Income
$76,667$71,667
Median Home Value
$224k$206k
Median Rent
$725$597
Median Age
43.7 yrs39.7 yrs
Poverty Rate
10.3%4.9%
Demographics
ZIP 21850
Powellville CDP, MD
View full profile →- White %80.3%
- Black %4.3%
- Asian %0.6%
- Hispanic %7.0%
- Age 0–17 %22.7%
- Age 18–64 %56.3%
- Age 65+ %21.1%
- Bachelor's+ %11.4%
- Diversity Index34/100
ZIP 21837
Mardela Springs town, MD
View full profile →- White %65.8%
- Black %26.1%
- Asian %0.9%
- Hispanic %6.2%
- Age 0–17 %21.0%
- Age 18–64 %60.4%
- Age 65+ %18.6%
- Bachelor's+ %19.0%
- Diversity Index50/100
Visual comparison (same scale)
White %
80.3%65.8%
Black %
4.3%26.1%
Asian %
0.6%0.9%
Hispanic %
7.0%6.2%
Age 0–17 %
22.7%21.0%
Age 18–64 %
56.3%60.4%
Age 65+ %
21.1%18.6%
Bachelor's+ %
11.4%19.0%
Diversity Index
34/10050/100
Economy
ZIP 21850
Powellville CDP, MD
View full profile →- Median Income$76,667
- Unemployment %4.4%
- IRS Net Migration+219
- Work From Home %4.9%
ZIP 21837
Mardela Springs town, MD
View full profile →- Median Income$71,667
- Unemployment %3.5%
- IRS Net Migration+175
- Work From Home %4.1%
Visual comparison (same scale)
Median Income
$76,667$71,667
Unemployment %
4.4%3.5%
IRS Net Migration
+219+175
Work From Home %
4.9%4.1%
Housing
ZIP 21850
Powellville CDP, MD
View full profile →- Median Home Value$224k
- Median Rent$725
- Owner Occupied %86.3%
- Broadband %95.0%
- Vacant %5.3%
- Median Year Built1994
ZIP 21837
Mardela Springs town, MD
View full profile →- Median Home Value$206k
- Median Rent$597
- Owner Occupied %86.5%
- Broadband %70.6%
- Vacant %5.5%
- Median Year Built1992
Visual comparison (same scale)
Median Home Value
$224k$206k
Median Rent
$725$597
Owner Occupied %
86.3%86.5%
Broadband %
95.0%70.6%
Vacant %
5.3%5.5%
Median Year Built
19941992
Climate & Location
ZIP 21850
Powellville CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)48 ft
- Nearest Airport6.3 miles (10.2 km)
- Distance to Coast11.6 miles (18.7 km)
ZIP 21837
Mardela Springs town, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)10 ft
- Nearest Airport15.9 miles (25.7 km)
- Distance to Coast0.5 miles (0.8 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
48 ft10 ft
Nearest Airport
6.3 miles (10.2 km)15.9 miles (25.7 km)
Distance to Coast
11.6 miles (18.7 km)0.5 miles (0.8 km)
Infrastructure
ZIP 21850
Powellville CDP, MD
View full profile →- Work From Home %4.9%
- Walkability (0–100)28
- Broadband %95.0%
ZIP 21837
Mardela Springs town, MD
View full profile →- Work From Home %4.1%
- Walkability (0–100)28
- Broadband %70.6%
Visual comparison (same scale)
Work From Home %
4.9%4.1%
Walkability (0–100)
2828
Broadband %
95.0%70.6%
Frequently Asked Questions
How do ZIP 21850 and 21837 compare?
ZIP 21850 is wealthier, higher home values, higher work-from-home share. ZIP 21837 is more affordable rent, lower poverty rate, lower unemployment, more diverse, more educated.
What do the blue and orange colors mean?
Blue represents the first ZIP (21850), orange the second (21837). 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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