21140 vs 21405 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21140, Orange = ZIP 21405.
Quick verdict: ZIP 21140 is lower poverty rate, more diverse. ZIP 21405 is wealthier, higher home values, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 21140
Riva CDP, MD
View full profile →- Population4,231
- Median Income$152,188
- Median Home Value$598k
- Median Rent$2,071
- Median Age44.2 yrs
- Poverty Rate0.8%
ZIP 21405
MD
View full profile →- Population426
- Median Income$182,614
- Median Home Value$944k
- Median Rent—
- Median Age61.9 yrs
- Poverty Rate11.0%
Visual comparison (same scale)
Population
4,231426
Median Income
$152,188$182,614
Median Home Value
$598k$944k
Median Rent
$2,071—
Median Age
44.2 yrs61.9 yrs
Poverty Rate
0.8%11.0%
Demographics
ZIP 21140
Riva CDP, MD
View full profile →- White %90.8%
- Black %0.3%
- Asian %0.8%
- Hispanic %8.3%
- Age 0–17 %26.0%
- Age 18–64 %48.9%
- Age 65+ %25.1%
- Bachelor's+ %51.7%
- Diversity Index17/100
ZIP 21405
MD
View full profile →- White %100.0%
- Black %0.0%
- Asian %0.0%
- Hispanic %0.0%
- Age 0–17 %6.8%
- Age 18–64 %48.1%
- Age 65+ %45.1%
- Bachelor's+ %75.0%
- Diversity Index0/100
Visual comparison (same scale)
White %
90.8%100.0%
Black %
0.3%0.0%
Asian %
0.8%0.0%
Hispanic %
8.3%0.0%
Age 0–17 %
26.0%6.8%
Age 18–64 %
48.9%48.1%
Age 65+ %
25.1%45.1%
Bachelor's+ %
51.7%75.0%
Diversity Index
17/1000/100
Economy
ZIP 21140
Riva CDP, MD
View full profile →- Median Income$152,188
- Unemployment %0.7%
- IRS Net Migration+249
- Work From Home %22.9%
- Mean Commute (min)—
ZIP 21405
MD
View full profile →- Median Income$182,614
- Unemployment %0.0%
- IRS Net Migration+25
- Work From Home %38.5%
- Mean Commute (min)99 min
Visual comparison (same scale)
Median Income
$152,188$182,614
Unemployment %
0.7%0.0%
IRS Net Migration
+249+25
Work From Home %
22.9%38.5%
Mean Commute (min)
—99 min
Housing
ZIP 21140
Riva CDP, MD
View full profile →- Median Home Value$598k
- Median Rent$2,071
- Owner Occupied %97.6%
- Broadband %96.3%
- Vacant %2.5%
- Median Year Built1979
ZIP 21405
MD
View full profile →- Median Home Value$944k
- Median Rent—
- Owner Occupied %94.4%
- Broadband %94.4%
- Vacant %36.3%
- Median Year Built1944
Visual comparison (same scale)
Median Home Value
$598k$944k
Median Rent
$2,071—
Owner Occupied %
97.6%94.4%
Broadband %
96.3%94.4%
Vacant %
2.5%36.3%
Median Year Built
19791944
Climate & Location
ZIP 21140
Riva CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)25 ft
- Nearest Airport13.6 miles (21.8 km)
- Distance to Coast0.6 miles (1.0 km)
ZIP 21405
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)25 ft
- Nearest Airport11.6 miles (18.7 km)
- Distance to Coast0.4 miles (0.7 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
25 ft25 ft
Nearest Airport
13.6 miles (21.8 km)11.6 miles (18.7 km)
Distance to Coast
0.6 miles (1.0 km)0.4 miles (0.7 km)
Infrastructure
ZIP 21140
Riva CDP, MD
View full profile →- Mean Commute (min)—
- Work From Home %22.9%
- Walkability (0–100)44
- Broadband %96.3%
ZIP 21405
MD
View full profile →- Mean Commute (min)99 min
- Work From Home %38.5%
- Walkability (0–100)32
- Broadband %94.4%
Visual comparison (same scale)
Mean Commute (min)
—99 min
Work From Home %
22.9%38.5%
Walkability (0–100)
4432
Broadband %
96.3%94.4%
Frequently Asked Questions
How do ZIP 21140 and 21405 compare?
ZIP 21140 is lower poverty rate, more diverse. ZIP 21405 is wealthier, higher home values, lower unemployment, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21140), orange the second (21405). 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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