20837 vs 20850 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 20837, Orange = ZIP 20850.
Quick verdict: ZIP 20837 is wealthier, higher home values, more affordable rent, lower unemployment, higher work-from-home share. ZIP 20850 is lower poverty rate, more diverse, more educated.
Quick Facts
ZIP 20837
Poolesville town, MD
View full profile →- Population6,605
- Median Income$191,927
- Median Home Value$701k
- Median Rent$1,561
- Median Age46.0 yrs
- Poverty Rate8.1%
ZIP 20850
Rockville city, MD
View full profile →- Population50,365
- Median Income$122,691
- Median Home Value$687k
- Median Rent$2,138
- Median Age40.8 yrs
- Poverty Rate7.1%
Visual comparison (same scale)
Population
6,60550,365
Median Income
$191,927$122,691
Median Home Value
$701k$687k
Median Rent
$1,561$2,138
Median Age
46.0 yrs40.8 yrs
Poverty Rate
8.1%7.1%
Demographics
ZIP 20837
Poolesville town, MD
View full profile →- White %75.4%
- Black %3.0%
- Asian %8.7%
- Hispanic %12.1%
- Age 0–17 %20.8%
- Age 18–64 %61.1%
- Age 65+ %18.2%
- Bachelor's+ %61.1%
- Diversity Index41/100
ZIP 20850
Rockville city, MD
View full profile →- White %46.7%
- Black %12.1%
- Asian %25.9%
- Hispanic %12.9%
- Age 0–17 %18.8%
- Age 18–64 %61.5%
- Age 65+ %19.6%
- Bachelor's+ %67.1%
- Diversity Index68/100
Visual comparison (same scale)
White %
75.4%46.7%
Black %
3.0%12.1%
Asian %
8.7%25.9%
Hispanic %
12.1%12.9%
Age 0–17 %
20.8%18.8%
Age 18–64 %
61.1%61.5%
Age 65+ %
18.2%19.6%
Bachelor's+ %
61.1%67.1%
Diversity Index
41/10068/100
Economy
ZIP 20837
Poolesville town, MD
View full profile →- Median Income$191,927
- Unemployment %3.9%
- IRS Net Migration+388
- Work From Home %37.5%
ZIP 20850
Rockville city, MD
View full profile →- Median Income$122,691
- Unemployment %4.4%
- IRS Net Migration+2,959
- Work From Home %31.9%
Visual comparison (same scale)
Median Income
$191,927$122,691
Unemployment %
3.9%4.4%
IRS Net Migration
+388+2,959
Work From Home %
37.5%31.9%
Housing
ZIP 20837
Poolesville town, MD
View full profile →- Median Home Value$701k
- Median Rent$1,561
- Owner Occupied %92.5%
- Broadband %98.8%
- Vacant %5.5%
- Median Year Built1987
ZIP 20850
Rockville city, MD
View full profile →- Median Home Value$687k
- Median Rent$2,138
- Owner Occupied %51.5%
- Broadband %95.1%
- Vacant %6.0%
- Median Year Built1996
Visual comparison (same scale)
Median Home Value
$701k$687k
Median Rent
$1,561$2,138
Owner Occupied %
92.5%51.5%
Broadband %
98.8%95.1%
Vacant %
5.5%6.0%
Median Year Built
19871996
Climate & Location
ZIP 20837
Poolesville town, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)288 ft
- Nearest Airport12.2 miles (19.6 km)
- Distance to Coast21.3 miles (34.3 km)
ZIP 20850
Rockville city, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)440 ft
- Nearest Airport17.8 miles (28.7 km)
- Distance to Coast12.7 miles (20.5 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
288 ft440 ft
Nearest Airport
12.2 miles (19.6 km)17.8 miles (28.7 km)
Distance to Coast
21.3 miles (34.3 km)12.7 miles (20.5 km)
Infrastructure
ZIP 20837
Poolesville town, MD
View full profile →- Work From Home %37.5%
- Walkability (0–100)43
- Broadband %98.8%
ZIP 20850
Rockville city, MD
View full profile →- Work From Home %31.9%
- Walkability (0–100)69
- Broadband %95.1%
Visual comparison (same scale)
Work From Home %
37.5%31.9%
Walkability (0–100)
4369
Broadband %
98.8%95.1%
Frequently Asked Questions
How do ZIP 20837 and 20850 compare?
ZIP 20837 is wealthier, higher home values, more affordable rent, lower unemployment, higher work-from-home share. ZIP 20850 is lower poverty rate, more diverse, more educated.
What do the blue and orange colors mean?
Blue represents the first ZIP (20837), orange the second (20850). 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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