21037 vs 21403 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21037, Orange = ZIP 21403.
Quick verdict: ZIP 21037 is wealthier, lower poverty rate, higher work-from-home share. ZIP 21403 is higher home values, more affordable rent, lower unemployment, more diverse, more educated.
Quick Facts
ZIP 21037
Mayo CDP, MD
View full profile →- Population20,851
- Median Income$135,541
- Median Home Value$531k
- Median Rent$1,954
- Median Age41.4 yrs
- Poverty Rate4.0%
ZIP 21403
Annapolis Neck CDP, MD
View full profile →- Population32,757
- Median Income$115,068
- Median Home Value$567k
- Median Rent$1,750
- Median Age45.1 yrs
- Poverty Rate4.9%
Visual comparison (same scale)
Population
20,85132,757
Median Income
$135,541$115,068
Median Home Value
$531k$567k
Median Rent
$1,954$1,750
Median Age
41.4 yrs45.1 yrs
Poverty Rate
4.0%4.9%
Demographics
ZIP 21037
Mayo CDP, MD
View full profile →- White %87.5%
- Black %5.3%
- Asian %1.0%
- Hispanic %5.6%
- Age 0–17 %22.0%
- Age 18–64 %61.3%
- Age 65+ %16.7%
- Bachelor's+ %46.2%
- Diversity Index23/100
ZIP 21403
Annapolis Neck CDP, MD
View full profile →- White %67.8%
- Black %11.6%
- Asian %0.4%
- Hispanic %19.4%
- Age 0–17 %18.7%
- Age 18–64 %59.4%
- Age 65+ %21.9%
- Bachelor's+ %57.6%
- Diversity Index49/100
Visual comparison (same scale)
White %
87.5%67.8%
Black %
5.3%11.6%
Asian %
1.0%0.4%
Hispanic %
5.6%19.4%
Age 0–17 %
22.0%18.7%
Age 18–64 %
61.3%59.4%
Age 65+ %
16.7%21.9%
Bachelor's+ %
46.2%57.6%
Diversity Index
23/10049/100
Economy
ZIP 21037
Mayo CDP, MD
View full profile →- Median Income$135,541
- Unemployment %3.8%
- IRS Net Migration+1,225
- Work From Home %24.6%
ZIP 21403
Annapolis Neck CDP, MD
View full profile →- Median Income$115,068
- Unemployment %3.4%
- IRS Net Migration+1,924
- Work From Home %17.9%
Visual comparison (same scale)
Median Income
$135,541$115,068
Unemployment %
3.8%3.4%
IRS Net Migration
+1,225+1,924
Work From Home %
24.6%17.9%
Housing
ZIP 21037
Mayo CDP, MD
View full profile →- Median Home Value$531k
- Median Rent$1,954
- Owner Occupied %89.3%
- Broadband %95.6%
- Vacant %8.6%
- Median Year Built1984
ZIP 21403
Annapolis Neck CDP, MD
View full profile →- Median Home Value$567k
- Median Rent$1,750
- Owner Occupied %70.0%
- Broadband %94.3%
- Vacant %6.9%
- Median Year Built1978
Visual comparison (same scale)
Median Home Value
$531k$567k
Median Rent
$1,954$1,750
Owner Occupied %
89.3%70.0%
Broadband %
95.6%94.3%
Vacant %
8.6%6.9%
Median Year Built
19841978
Climate & Location
ZIP 21037
Mayo CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)25 ft
- Nearest Airport16.3 miles (26.3 km)
- Distance to Coast0.8 miles (1.2 km)
ZIP 21403
Annapolis Neck CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)8 ft
- Nearest Airport17.5 miles (28.2 km)
- Distance to Coast1.0 miles (1.7 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
25 ft8 ft
Nearest Airport
16.3 miles (26.3 km)17.5 miles (28.2 km)
Distance to Coast
0.8 miles (1.2 km)1.0 miles (1.7 km)
Infrastructure
ZIP 21403
Annapolis Neck CDP, MD
View full profile →- Work From Home %17.9%
- Walkability (0–100)62
- Broadband %94.3%
Visual comparison (same scale)
Work From Home %
24.6%17.9%
Walkability (0–100)
4662
Broadband %
95.6%94.3%
Frequently Asked Questions
How do ZIP 21037 and 21403 compare?
ZIP 21037 is wealthier, lower poverty rate, higher work-from-home share. ZIP 21403 is higher home values, more affordable rent, lower unemployment, more diverse, more educated.
What do the blue and orange colors mean?
Blue represents the first ZIP (21037), orange the second (21403). 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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