21840 vs 21837 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21840, Orange = ZIP 21837.
Quick verdict: ZIP 21840 is wealthier, lower poverty rate. ZIP 21837 is lower unemployment, more diverse, more educated, higher work-from-home share.
Quick Facts
ZIP 21840
Nanticoke CDP, MD
View full profile →- Population573
- Median Income$120,324
- Median Home Value—
- Median Rent—
- Median Age48.5 yrs
- Poverty Rate0.0%
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
5732,975
Median Income
$120,324$71,667
Median Home Value
—$206k
Median Rent
—$597
Median Age
48.5 yrs39.7 yrs
Poverty Rate
0.0%4.9%
Demographics
ZIP 21840
Nanticoke CDP, MD
View full profile →- White %74.0%
- Black %0.0%
- Asian %0.0%
- Hispanic %0.0%
- Age 0–17 %27.8%
- Age 18–64 %43.1%
- Age 65+ %29.1%
- Bachelor's+ %17.6%
- Diversity Index38/100
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 %
74.0%65.8%
Black %
0.0%26.1%
Asian %
0.0%0.9%
Hispanic %
0.0%6.2%
Age 0–17 %
27.8%21.0%
Age 18–64 %
43.1%60.4%
Age 65+ %
29.1%18.6%
Bachelor's+ %
17.6%19.0%
Diversity Index
38/10050/100
Economy
ZIP 21840
Nanticoke CDP, MD
View full profile →- Median Income$120,324
- Unemployment %19.7%
- IRS Net Migration+34
- Work From Home %0.0%
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
$120,324$71,667
Unemployment %
19.7%3.5%
IRS Net Migration
+34+175
Work From Home %
0.0%4.1%
Housing
ZIP 21840
Nanticoke CDP, MD
View full profile →- Median Home Value—
- Median Rent—
- Owner Occupied %78.2%
- Broadband %100.0%
- Vacant %52.2%
- Median Year Built1962
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
—$206k
Median Rent
—$597
Owner Occupied %
78.2%86.5%
Broadband %
100.0%70.6%
Vacant %
52.2%5.5%
Median Year Built
19621992
Climate & Location
ZIP 21840
Nanticoke CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)10 ft
- Nearest Airport22.1 miles (35.5 km)
- Distance to Coast0.4 miles (0.7 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)
10 ft10 ft
Nearest Airport
22.1 miles (35.5 km)15.9 miles (25.7 km)
Distance to Coast
0.4 miles (0.7 km)0.5 miles (0.8 km)
Infrastructure
ZIP 21840
Nanticoke CDP, MD
View full profile →- Work From Home %0.0%
- Walkability (0–100)22
- Broadband %100.0%
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 %
0.0%4.1%
Walkability (0–100)
2228
Broadband %
100.0%70.6%
Frequently Asked Questions
How do ZIP 21840 and 21837 compare?
ZIP 21840 is wealthier, lower poverty rate. ZIP 21837 is lower unemployment, more diverse, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21840), 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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