21710 vs 20842 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21710, Orange = ZIP 20842.
Quick verdict: ZIP 21710 is more educated. ZIP 20842 is wealthier, higher home values, more affordable rent, lower poverty rate, lower unemployment, more diverse, higher work-from-home share.
Quick Facts
ZIP 21710
Adamstown CDP, MD
View full profile →- Population4,901
- Median Income$164,727
- Median Home Value$582k
- Median Rent$2,391
- Median Age51.4 yrs
- Poverty Rate3.4%
ZIP 20842
MD
View full profile →- Population2,093
- Median Income$166,389
- Median Home Value$709k
- Median Rent$1,325
- Median Age47.3 yrs
- Poverty Rate1.3%
Visual comparison (same scale)
Population
4,9012,093
Median Income
$164,727$166,389
Median Home Value
$582k$709k
Median Rent
$2,391$1,325
Median Age
51.4 yrs47.3 yrs
Poverty Rate
3.4%1.3%
Demographics
ZIP 21710
Adamstown CDP, MD
View full profile →- White %84.0%
- Black %6.6%
- Asian %1.9%
- Hispanic %6.0%
- Age 0–17 %17.3%
- Age 18–64 %58.9%
- Age 65+ %23.8%
- Bachelor's+ %52.6%
- Diversity Index29/100
ZIP 20842
MD
View full profile →- White %67.5%
- Black %11.4%
- Asian %1.5%
- Hispanic %14.1%
- Age 0–17 %21.4%
- Age 18–64 %62.2%
- Age 65+ %16.4%
- Bachelor's+ %51.3%
- Diversity Index51/100
Visual comparison (same scale)
White %
84.0%67.5%
Black %
6.6%11.4%
Asian %
1.9%1.5%
Hispanic %
6.0%14.1%
Age 0–17 %
17.3%21.4%
Age 18–64 %
58.9%62.2%
Age 65+ %
23.8%16.4%
Bachelor's+ %
52.6%51.3%
Diversity Index
29/10051/100
Economy
ZIP 21710
Adamstown CDP, MD
View full profile →- Median Income$164,727
- Unemployment %1.7%
- IRS Net Migration+288
- Work From Home %27.6%
ZIP 20842
MD
View full profile →- Median Income$166,389
- Unemployment %1.6%
- IRS Net Migration+123
- Work From Home %28.0%
Visual comparison (same scale)
Median Income
$164,727$166,389
Unemployment %
1.7%1.6%
IRS Net Migration
+288+123
Work From Home %
27.6%28.0%
Housing
ZIP 21710
Adamstown CDP, MD
View full profile →- Median Home Value$582k
- Median Rent$2,391
- Owner Occupied %84.9%
- Broadband %92.5%
- Vacant %5.2%
- Median Year Built1996
ZIP 20842
MD
View full profile →- Median Home Value$709k
- Median Rent$1,325
- Owner Occupied %78.5%
- Broadband %87.1%
- Vacant %7.4%
- Median Year Built1963
Visual comparison (same scale)
Median Home Value
$582k$709k
Median Rent
$2,391$1,325
Owner Occupied %
84.9%78.5%
Broadband %
92.5%87.1%
Vacant %
5.2%7.4%
Median Year Built
19961963
Climate & Location
ZIP 21710
Adamstown CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)380 ft
- Nearest Airport25.1 miles (40.5 km)
- Distance to Coast32.2 miles (51.9 km)
ZIP 20842
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)700 ft
- Nearest Airport17.8 miles (28.6 km)
- Distance to Coast25.7 miles (41.4 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
380 ft700 ft
Nearest Airport
25.1 miles (40.5 km)17.8 miles (28.6 km)
Distance to Coast
32.2 miles (51.9 km)25.7 miles (41.4 km)
Infrastructure
ZIP 21710
Adamstown CDP, MD
View full profile →- Work From Home %27.6%
- Walkability (0–100)30
- Broadband %92.5%
Visual comparison (same scale)
Work From Home %
27.6%28.0%
Walkability (0–100)
3032
Broadband %
92.5%87.1%
Frequently Asked Questions
How do ZIP 21710 and 20842 compare?
ZIP 21710 is more educated. ZIP 20842 is wealthier, higher home values, more affordable rent, lower poverty rate, lower unemployment, more diverse, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21710), orange the second (20842). 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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