20906 vs 20878 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 20906, Orange = ZIP 20878.
Quick verdict: ZIP 20906 is more affordable rent, more diverse. ZIP 20878 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 20906
Aspen Hill CDP, MD
View full profile →- Population71,216
- Median Income$92,964
- Median Home Value$441k
- Median Rent$1,796
- Median Age40.0 yrs
- Poverty Rate9.0%
ZIP 20878
Gaithersburg city, MD
View full profile →- Population65,236
- Median Income$142,062
- Median Home Value$675k
- Median Rent$1,934
- Median Age41.4 yrs
- Poverty Rate5.0%
Visual comparison (same scale)
Population
71,21665,236
Median Income
$92,964$142,062
Median Home Value
$441k$675k
Median Rent
$1,796$1,934
Median Age
40.0 yrs41.4 yrs
Poverty Rate
9.0%5.0%
Demographics
ZIP 20906
Aspen Hill CDP, MD
View full profile →- White %29.2%
- Black %24.9%
- Asian %11.5%
- Hispanic %32.0%
- Age 0–17 %21.9%
- Age 18–64 %57.0%
- Age 65+ %21.1%
- Bachelor's+ %42.4%
- Diversity Index74/100
ZIP 20878
Gaithersburg city, MD
View full profile →- White %47.6%
- Black %10.5%
- Asian %26.5%
- Hispanic %13.8%
- Age 0–17 %21.8%
- Age 18–64 %63.2%
- Age 65+ %15.0%
- Bachelor's+ %70.1%
- Diversity Index67/100
Visual comparison (same scale)
White %
29.2%47.6%
Black %
24.9%10.5%
Asian %
11.5%26.5%
Hispanic %
32.0%13.8%
Age 0–17 %
21.9%21.8%
Age 18–64 %
57.0%63.2%
Age 65+ %
21.1%15.0%
Bachelor's+ %
42.4%70.1%
Diversity Index
74/10067/100
Economy
ZIP 20906
Aspen Hill CDP, MD
View full profile →- Median Income$92,964
- Unemployment %7.6%
- IRS Net Migration+4,184
- Work From Home %16.4%
ZIP 20878
Gaithersburg city, MD
View full profile →- Median Income$142,062
- Unemployment %4.2%
- IRS Net Migration+3,833
- Work From Home %30.4%
Visual comparison (same scale)
Median Income
$92,964$142,062
Unemployment %
7.6%4.2%
IRS Net Migration
+4,184+3,833
Work From Home %
16.4%30.4%
Housing
ZIP 20906
Aspen Hill CDP, MD
View full profile →- Median Home Value$441k
- Median Rent$1,796
- Owner Occupied %66.8%
- Broadband %91.3%
- Vacant %4.3%
- Median Year Built1977
ZIP 20878
Gaithersburg city, MD
View full profile →- Median Home Value$675k
- Median Rent$1,934
- Owner Occupied %69.3%
- Broadband %98.1%
- Vacant %3.8%
- Median Year Built1987
Visual comparison (same scale)
Median Home Value
$441k$675k
Median Rent
$1,796$1,934
Owner Occupied %
66.8%69.3%
Broadband %
91.3%98.1%
Vacant %
4.3%3.8%
Median Year Built
19771987
Climate & Location
ZIP 20906
Aspen Hill CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)440 ft
- Nearest Airport16.0 miles (25.7 km)
- Distance to Coast11.8 miles (19.0 km)
ZIP 20878
Gaithersburg city, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)440 ft
- Nearest Airport16.0 miles (25.8 km)
- Distance to Coast15.7 miles (25.2 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
440 ft440 ft
Nearest Airport
16.0 miles (25.7 km)16.0 miles (25.8 km)
Distance to Coast
11.8 miles (19.0 km)15.7 miles (25.2 km)
Infrastructure
ZIP 20906
Aspen Hill CDP, MD
View full profile →- Work From Home %16.4%
- Walkability (0–100)57
- Broadband %91.3%
ZIP 20878
Gaithersburg city, MD
View full profile →- Work From Home %30.4%
- Walkability (0–100)62
- Broadband %98.1%
Visual comparison (same scale)
Work From Home %
16.4%30.4%
Walkability (0–100)
5762
Broadband %
91.3%98.1%
Frequently Asked Questions
How do ZIP 20906 and 20878 compare?
ZIP 20906 is more affordable rent, more diverse. ZIP 20878 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 (20906), orange the second (20878). 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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