21163 vs 21042 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21163, Orange = ZIP 21042.
Quick verdict: ZIP 21163 is more affordable rent, more diverse. ZIP 21042 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 21163
Randallstown CDP, MD
View full profile →- Population7,031
- Median Income$131,154
- Median Home Value$599k
- Median Rent$1,160
- Median Age46.7 yrs
- Poverty Rate7.3%
ZIP 21042
Ellicott City CDP, MD
View full profile →- Population43,021
- Median Income$190,504
- Median Home Value$675k
- Median Rent$2,133
- Median Age45.0 yrs
- Poverty Rate2.7%
Visual comparison (same scale)
Population
7,03143,021
Median Income
$131,154$190,504
Median Home Value
$599k$675k
Median Rent
$1,160$2,133
Median Age
46.7 yrs45.0 yrs
Poverty Rate
7.3%2.7%
Demographics
ZIP 21163
Randallstown CDP, MD
View full profile →- White %47.8%
- Black %20.6%
- Asian %26.1%
- Hispanic %2.1%
- Age 0–17 %20.9%
- Age 18–64 %57.7%
- Age 65+ %21.4%
- Bachelor's+ %61.3%
- Diversity Index66/100
ZIP 21042
Ellicott City CDP, MD
View full profile →- White %57.8%
- Black %4.2%
- Asian %29.3%
- Hispanic %4.3%
- Age 0–17 %25.8%
- Age 18–64 %55.2%
- Age 65+ %19.0%
- Bachelor's+ %74.7%
- Diversity Index57/100
Visual comparison (same scale)
White %
47.8%57.8%
Black %
20.6%4.2%
Asian %
26.1%29.3%
Hispanic %
2.1%4.3%
Age 0–17 %
20.9%25.8%
Age 18–64 %
57.7%55.2%
Age 65+ %
21.4%19.0%
Bachelor's+ %
61.3%74.7%
Diversity Index
66/10057/100
Economy
ZIP 21163
Randallstown CDP, MD
View full profile →- Median Income$131,154
- Unemployment %4.0%
- IRS Net Migration+413
- Work From Home %21.2%
ZIP 21042
Ellicott City CDP, MD
View full profile →- Median Income$190,504
- Unemployment %2.1%
- IRS Net Migration+2,528
- Work From Home %26.2%
Visual comparison (same scale)
Median Income
$131,154$190,504
Unemployment %
4.0%2.1%
IRS Net Migration
+413+2,528
Work From Home %
21.2%26.2%
Housing
ZIP 21163
Randallstown CDP, MD
View full profile →- Median Home Value$599k
- Median Rent$1,160
- Owner Occupied %84.1%
- Broadband %94.9%
- Vacant %5.8%
- Median Year Built2000
ZIP 21042
Ellicott City CDP, MD
View full profile →- Median Home Value$675k
- Median Rent$2,133
- Owner Occupied %85.4%
- Broadband %95.7%
- Vacant %2.0%
- Median Year Built1986
Visual comparison (same scale)
Median Home Value
$599k$675k
Median Rent
$1,160$2,133
Owner Occupied %
84.1%85.4%
Broadband %
94.9%95.7%
Vacant %
5.8%2.0%
Median Year Built
20001986
Climate & Location
ZIP 21163
Randallstown CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)235 ft
- Nearest Airport14.8 miles (23.8 km)
- Distance to Coast11.1 miles (17.9 km)
ZIP 21042
Ellicott City CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)400 ft
- Nearest Airport14.0 miles (22.5 km)
- Distance to Coast12.8 miles (20.6 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
235 ft400 ft
Nearest Airport
14.8 miles (23.8 km)14.0 miles (22.5 km)
Distance to Coast
11.1 miles (17.9 km)12.8 miles (20.6 km)
Infrastructure
ZIP 21163
Randallstown CDP, MD
View full profile →- Work From Home %21.2%
- Walkability (0–100)36
- Broadband %94.9%
ZIP 21042
Ellicott City CDP, MD
View full profile →- Work From Home %26.2%
- Walkability (0–100)38
- Broadband %95.7%
Visual comparison (same scale)
Work From Home %
21.2%26.2%
Walkability (0–100)
3638
Broadband %
94.9%95.7%
Frequently Asked Questions
How do ZIP 21163 and 21042 compare?
ZIP 21163 is more affordable rent, more diverse. ZIP 21042 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 (21163), orange the second (21042). 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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