21702 vs 21770 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21702, Orange = ZIP 21770.
Quick verdict: ZIP 21702 is more diverse. ZIP 21770 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 21702
Frederick city, MD
View full profile →- Population47,437
- Median Income$104,659
- Median Home Value$385k
- Median Rent$1,585
- Median Age37.6 yrs
- Poverty Rate8.9%
ZIP 21770
Green Valley CDP, MD
View full profile →- Population7,815
- Median Income$184,464
- Median Home Value$600k
- Median Rent—
- Median Age41.2 yrs
- Poverty Rate1.4%
Visual comparison (same scale)
Population
47,4377,815
Median Income
$104,659$184,464
Median Home Value
$385k$600k
Median Rent
$1,585—
Median Age
37.6 yrs41.2 yrs
Poverty Rate
8.9%1.4%
Demographics
ZIP 21702
Frederick city, MD
View full profile →- White %57.1%
- Black %16.0%
- Asian %5.3%
- Hispanic %21.3%
- Age 0–17 %23.9%
- Age 18–64 %61.3%
- Age 65+ %14.8%
- Bachelor's+ %40.5%
- Diversity Index60/100
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
Visual comparison (same scale)
White %
57.1%76.3%
Black %
16.0%5.0%
Asian %
5.3%12.0%
Hispanic %
21.3%3.9%
Age 0–17 %
23.9%21.8%
Age 18–64 %
61.3%59.2%
Age 65+ %
14.8%18.9%
Bachelor's+ %
40.5%54.5%
Diversity Index
60/10040/100
Economy
ZIP 21702
Frederick city, MD
View full profile →- Median Income$104,659
- Unemployment %2.6%
- IRS Net Migration+2,787
- Work From Home %16.5%
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%
Visual comparison (same scale)
Median Income
$104,659$184,464
Unemployment %
2.6%2.2%
IRS Net Migration
+2,787+459
Work From Home %
16.5%25.7%
Housing
ZIP 21702
Frederick city, MD
View full profile →- Median Home Value$385k
- Median Rent$1,585
- Owner Occupied %63.1%
- Broadband %92.2%
- Vacant %5.1%
- Median Year Built1990
ZIP 21770
Green Valley CDP, MD
View full profile →- Median Home Value$600k
- Median Rent—
- Owner Occupied %98.0%
- Broadband %96.4%
- Vacant %2.2%
- Median Year Built1988
Visual comparison (same scale)
Median Home Value
$385k$600k
Median Rent
$1,585—
Owner Occupied %
63.1%98.0%
Broadband %
92.2%96.4%
Vacant %
5.1%2.2%
Median Year Built
19901988
Climate & Location
ZIP 21702
Frederick city, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)380 ft
- Nearest Airport21.9 miles (35.3 km)
- Distance to Coast42.9 miles (69.0 km)
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)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
380 ft700 ft
Nearest Airport
21.9 miles (35.3 km)30.0 miles (48.3 km)
Distance to Coast
42.9 miles (69.0 km)31.0 miles (50.0 km)
Infrastructure
ZIP 21702
Frederick city, MD
View full profile →- Work From Home %16.5%
- Walkability (0–100)50
- Broadband %92.2%
ZIP 21770
Green Valley CDP, MD
View full profile →- Work From Home %25.7%
- Walkability (0–100)28
- Broadband %96.4%
Visual comparison (same scale)
Work From Home %
16.5%25.7%
Walkability (0–100)
5028
Broadband %
92.2%96.4%
Frequently Asked Questions
How do ZIP 21702 and 21770 compare?
ZIP 21702 is more diverse. ZIP 21770 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21702), orange the second (21770). 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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