20855 vs 20851 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 20855, Orange = ZIP 20851.
Quick verdict: ZIP 20855 is wealthier, higher home values, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share. ZIP 20851 is more affordable rent.
Quick Facts
ZIP 20855
Redland CDP, MD
View full profile →- Population16,557
- Median Income$147,708
- Median Home Value$615k
- Median Rent$2,251
- Median Age41.8 yrs
- Poverty Rate4.5%
ZIP 20851
Rockville city, MD
View full profile →- Population14,660
- Median Income$113,951
- Median Home Value$524k
- Median Rent$1,843
- Median Age38.6 yrs
- Poverty Rate9.2%
Visual comparison (same scale)
Population
16,55714,660
Median Income
$147,708$113,951
Median Home Value
$615k$524k
Median Rent
$2,251$1,843
Median Age
41.8 yrs38.6 yrs
Poverty Rate
4.5%9.2%
Demographics
ZIP 20855
Redland CDP, MD
View full profile →- White %49.1%
- Black %15.7%
- Asian %18.6%
- Hispanic %13.1%
- Age 0–17 %21.2%
- Age 18–64 %60.4%
- Age 65+ %18.4%
- Bachelor's+ %67.8%
- Diversity Index68/100
ZIP 20851
Rockville city, MD
View full profile →- White %33.0%
- Black %11.8%
- Asian %14.1%
- Hispanic %42.2%
- Age 0–17 %19.9%
- Age 18–64 %68.0%
- Age 65+ %12.1%
- Bachelor's+ %41.4%
- Diversity Index68/100
Visual comparison (same scale)
White %
49.1%33.0%
Black %
15.7%11.8%
Asian %
18.6%14.1%
Hispanic %
13.1%42.2%
Age 0–17 %
21.2%19.9%
Age 18–64 %
60.4%68.0%
Age 65+ %
18.4%12.1%
Bachelor's+ %
67.8%41.4%
Diversity Index
68/10068/100
Economy
ZIP 20855
Redland CDP, MD
View full profile →- Median Income$147,708
- Unemployment %3.1%
- IRS Net Migration+973
- Work From Home %28.0%
ZIP 20851
Rockville city, MD
View full profile →- Median Income$113,951
- Unemployment %3.8%
- IRS Net Migration+861
- Work From Home %23.6%
Visual comparison (same scale)
Median Income
$147,708$113,951
Unemployment %
3.1%3.8%
IRS Net Migration
+973+861
Work From Home %
28.0%23.6%
Housing
ZIP 20855
Redland CDP, MD
View full profile →- Median Home Value$615k
- Median Rent$2,251
- Owner Occupied %77.9%
- Broadband %97.7%
- Vacant %1.6%
- Median Year Built1983
ZIP 20851
Rockville city, MD
View full profile →- Median Home Value$524k
- Median Rent$1,843
- Owner Occupied %56.7%
- Broadband %91.9%
- Vacant %3.6%
- Median Year Built1958
Visual comparison (same scale)
Median Home Value
$615k$524k
Median Rent
$2,251$1,843
Owner Occupied %
77.9%56.7%
Broadband %
97.7%91.9%
Vacant %
1.6%3.6%
Median Year Built
19831958
Climate & Location
ZIP 20855
Redland CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)440 ft
- Nearest Airport20.1 miles (32.3 km)
- Distance to Coast15.0 miles (24.2 km)
ZIP 20851
Rockville city, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)440 ft
- Nearest Airport16.3 miles (26.3 km)
- Distance to Coast11.3 miles (18.1 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
440 ft440 ft
Nearest Airport
20.1 miles (32.3 km)16.3 miles (26.3 km)
Distance to Coast
15.0 miles (24.2 km)11.3 miles (18.1 km)
Infrastructure
ZIP 20855
Redland CDP, MD
View full profile →- Work From Home %28.0%
- Walkability (0–100)56
- Broadband %97.7%
ZIP 20851
Rockville city, MD
View full profile →- Work From Home %23.6%
- Walkability (0–100)67
- Broadband %91.9%
Visual comparison (same scale)
Work From Home %
28.0%23.6%
Walkability (0–100)
5667
Broadband %
97.7%91.9%
Frequently Asked Questions
How do ZIP 20855 and 20851 compare?
ZIP 20855 is wealthier, higher home values, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share. ZIP 20851 is more affordable rent.
What do the blue and orange colors mean?
Blue represents the first ZIP (20855), orange the second (20851). 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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