21777 vs 20839 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21777, Orange = ZIP 20839.
Quick verdict: ZIP 21777 is wealthier, more diverse. ZIP 20839 is higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 21777
Point of Rocks CDP, MD
View full profile →- Population2,333
- Median Income$136,827
- Median Home Value$441k
- Median Age43.6 yrs
- Poverty Rate1.6%
ZIP 20839
MD
View full profile →- Population116
- Median Income$101,250
- Median Home Value$900k
- Median Age35.0 yrs
- Poverty Rate0.0%
Visual comparison (same scale)
Population
2,333116
Median Income
$136,827$101,250
Median Home Value
$441k$900k
Median Age
43.6 yrs35.0 yrs
Poverty Rate
1.6%0.0%
Demographics
ZIP 21777
Point of Rocks CDP, MD
View full profile →- White %67.1%
- Black %14.0%
- Asian %5.7%
- Hispanic %15.9%
- Age 0–17 %19.3%
- Age 18–64 %69.2%
- Age 65+ %11.5%
- Bachelor's+ %41.8%
- Diversity Index50/100
ZIP 20839
MD
View full profile →- White %83.6%
- Black %0.0%
- Asian %0.0%
- Hispanic %0.0%
- Age 0–17 %18.1%
- Age 18–64 %57.8%
- Age 65+ %24.1%
- Bachelor's+ %65.3%
- Diversity Index27/100
Visual comparison (same scale)
White %
67.1%83.6%
Black %
14.0%0.0%
Asian %
5.7%0.0%
Hispanic %
15.9%0.0%
Age 0–17 %
19.3%18.1%
Age 18–64 %
69.2%57.8%
Age 65+ %
11.5%24.1%
Bachelor's+ %
41.8%65.3%
Diversity Index
50/10027/100
Economy
ZIP 21777
Point of Rocks CDP, MD
View full profile →- Median Income$136,827
- Unemployment %4.8%
- IRS Net Migration+137
- Work From Home %22.8%
- Mean Commute (min)—
ZIP 20839
MD
View full profile →- Median Income$101,250
- Unemployment %0.0%
- IRS Net Migration+7
- Work From Home %29.6%
- Mean Commute (min)57 min
Visual comparison (same scale)
Median Income
$136,827$101,250
Unemployment %
4.8%0.0%
IRS Net Migration
+137+7
Work From Home %
22.8%29.6%
Mean Commute (min)
—57 min
Housing
ZIP 21777
Point of Rocks CDP, MD
View full profile →- Median Home Value$441k
- Owner Occupied %99.6%
- Broadband %100.0%
- Vacant %0.0%
- Median Year Built1998
ZIP 20839
MD
View full profile →- Median Home Value$900k
- Owner Occupied %75.9%
- Broadband %100.0%
- Vacant %0.0%
- Median Year Built1975
Visual comparison (same scale)
Median Home Value
$441k$900k
Owner Occupied %
99.6%75.9%
Broadband %
100.0%100.0%
Vacant %
0.0%0.0%
Median Year Built
19981975
Climate & Location
ZIP 21777
Point of Rocks CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)380 ft
- Nearest Airport22.8 miles (36.8 km)
- Distance to Coast33.1 miles (53.3 km)
ZIP 20839
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)700 ft
- Nearest Airport16.4 miles (26.4 km)
- Distance to Coast25.3 miles (40.8 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
380 ft700 ft
Nearest Airport
22.8 miles (36.8 km)16.4 miles (26.4 km)
Distance to Coast
33.1 miles (53.3 km)25.3 miles (40.8 km)
Infrastructure
ZIP 21777
Point of Rocks CDP, MD
View full profile →- Mean Commute (min)—
- Work From Home %22.8%
- Walkability (0–100)21
- Broadband %100.0%
ZIP 20839
MD
View full profile →- Mean Commute (min)57 min
- Work From Home %29.6%
- Walkability (0–100)41
- Broadband %100.0%
Visual comparison (same scale)
Mean Commute (min)
—57 min
Work From Home %
22.8%29.6%
Walkability (0–100)
2141
Broadband %
100.0%100.0%
Frequently Asked Questions
How do ZIP 21777 and 20839 compare?
ZIP 21777 is wealthier, more diverse. ZIP 20839 is 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 (21777), orange the second (20839). 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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