21770 vs 54127 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21770, Orange = ZIP 54127.
Quick verdict: ZIP 21770 is wealthier, higher home values, lower poverty rate, more diverse, more educated, higher work-from-home share. ZIP 54127 is lower unemployment.
Quick Facts
ZIP 21770
Green Valley CDP, MD
View full profile →- Population7,815
- Median Income$184,464
- Median Home Value$600k
- Median Age41.2 yrs
- Poverty Rate1.4%
ZIP 54127
Green Valley CDP, WI
View full profile →- Population44
- Median Income$0
- Median Home Value$133k
- Median Age48.3 yrs
- Poverty Rate20.4%
Visual comparison (same scale)
Population
7,81544
Median Income
$184,464$0
Median Home Value
$600k$133k
Median Age
41.2 yrs48.3 yrs
Poverty Rate
1.4%20.4%
Demographics
ZIP 21770
Green Valley CDP, MD
View full profile →- White %76.3%
- Black %5.0%
- Asian %12.0%
- Hispanic %3.9%
- Age 0–17 %21.8%
- Age 18–64 %59.2%
- Age 65+ %18.9%
- Bachelor's+ %54.5%
- Diversity Index40/100
ZIP 54127
Green Valley CDP, WI
View full profile →- White %100.0%
- Black %0.0%
- Asian %0.0%
- Hispanic %0.0%
- Age 0–17 %11.4%
- Age 18–64 %75.0%
- Age 65+ %13.6%
- Bachelor's+ %2.8%
- Diversity Index0/100
Visual comparison (same scale)
White %
76.3%100.0%
Black %
5.0%0.0%
Asian %
12.0%0.0%
Hispanic %
3.9%0.0%
Age 0–17 %
21.8%11.4%
Age 18–64 %
59.2%75.0%
Age 65+ %
18.9%13.6%
Bachelor's+ %
54.5%2.8%
Diversity Index
40/1000/100
Economy
ZIP 21770
Green Valley CDP, MD
View full profile →- Median Income$184,464
- Unemployment %2.2%
- IRS Net Migration+459
- Work From Home %25.7%
- Mean Commute (min)—
ZIP 54127
Green Valley CDP, WI
View full profile →- Median Income$0
- Unemployment %0.0%
- IRS Net Migration+3
- Work From Home %17.9%
- Mean Commute (min)23 min
Visual comparison (same scale)
Median Income
$184,464$0
Unemployment %
2.2%0.0%
IRS Net Migration
+459+3
Work From Home %
25.7%17.9%
Mean Commute (min)
—23 min
Housing
ZIP 21770
Green Valley CDP, MD
View full profile →- Median Home Value$600k
- Owner Occupied %98.0%
- Broadband %96.4%
- Vacant %2.2%
- Median Year Built1988
ZIP 54127
Green Valley CDP, WI
View full profile →- Median Home Value$133k
- Owner Occupied %94.4%
- Broadband %88.9%
- Vacant %30.8%
- Median Year Built1938
Visual comparison (same scale)
Median Home Value
$600k$133k
Owner Occupied %
98.0%94.4%
Broadband %
96.4%88.9%
Vacant %
2.2%30.8%
Median Year Built
19881938
Climate & Location
ZIP 21770
Green Valley CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)700 ft
- Nearest Airport30.0 miles (48.3 km)
- Distance to Coast31.0 miles (50.0 km)
ZIP 54127
Green Valley CDP, WI
View full profile →- Snow Days/Year0 days
- Elevation (ft)792 ft
- Nearest Airport22.7 miles (36.5 km)
- Distance to Coast12.8 miles (20.7 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
700 ft792 ft
Nearest Airport
30.0 miles (48.3 km)22.7 miles (36.5 km)
Distance to Coast
31.0 miles (50.0 km)12.8 miles (20.7 km)
Infrastructure
ZIP 21770
Green Valley CDP, MD
View full profile →- Mean Commute (min)—
- Work From Home %25.7%
- Walkability (0–100)28
- Broadband %96.4%
ZIP 54127
Green Valley CDP, WI
View full profile →- Mean Commute (min)23 min
- Work From Home %17.9%
- Walkability (0–100)18
- Broadband %88.9%
Visual comparison (same scale)
Mean Commute (min)
—23 min
Work From Home %
25.7%17.9%
Walkability (0–100)
2818
Broadband %
96.4%88.9%
Frequently Asked Questions
How do ZIP 21770 and 54127 compare?
ZIP 21770 is wealthier, higher home values, lower poverty rate, more diverse, more educated, higher work-from-home share. ZIP 54127 is lower unemployment.
What do the blue and orange colors mean?
Blue represents the first ZIP (21770), orange the second (54127). 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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