21794 vs 21045 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21794, Orange = ZIP 21045.
Quick verdict: ZIP 21794 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated. ZIP 21045 is more diverse, higher work-from-home share.
Quick Facts
ZIP 21794
MD
View full profile →- Population2,326
- Median Income$223,833
- Median Home Value$977k
- Median Rent—
- Median Age42.2 yrs
- Poverty Rate2.9%
ZIP 21045
Columbia CDP, MD
View full profile →- Population40,866
- Median Income$117,323
- Median Home Value$439k
- Median Rent$1,592
- Median Age38.4 yrs
- Poverty Rate8.4%
Visual comparison (same scale)
Population
2,32640,866
Median Income
$223,833$117,323
Median Home Value
$977k$439k
Median Rent
—$1,592
Median Age
42.2 yrs38.4 yrs
Poverty Rate
2.9%8.4%
Demographics
ZIP 21794
MD
View full profile →- White %75.7%
- Black %4.9%
- Asian %14.5%
- Hispanic %0.9%
- Age 0–17 %27.5%
- Age 18–64 %55.8%
- Age 65+ %16.7%
- Bachelor's+ %58.0%
- Diversity Index40/100
ZIP 21045
Columbia CDP, MD
View full profile →- White %45.0%
- Black %32.5%
- Asian %8.7%
- Hispanic %11.1%
- Age 0–17 %22.5%
- Age 18–64 %59.7%
- Age 65+ %17.8%
- Bachelor's+ %57.4%
- Diversity Index67/100
Visual comparison (same scale)
White %
75.7%45.0%
Black %
4.9%32.5%
Asian %
14.5%8.7%
Hispanic %
0.9%11.1%
Age 0–17 %
27.5%22.5%
Age 18–64 %
55.8%59.7%
Age 65+ %
16.7%17.8%
Bachelor's+ %
58.0%57.4%
Diversity Index
40/10067/100
Economy
ZIP 21794
MD
View full profile →- Median Income$223,833
- Unemployment %2.5%
- IRS Net Migration+137
- Work From Home %20.1%
ZIP 21045
Columbia CDP, MD
View full profile →- Median Income$117,323
- Unemployment %5.7%
- IRS Net Migration+2,401
- Work From Home %23.1%
Visual comparison (same scale)
Median Income
$223,833$117,323
Unemployment %
2.5%5.7%
IRS Net Migration
+137+2,401
Work From Home %
20.1%23.1%
Housing
ZIP 21794
MD
View full profile →- Median Home Value$977k
- Median Rent—
- Owner Occupied %99.6%
- Broadband %98.8%
- Vacant %3.1%
- Median Year Built1995
ZIP 21045
Columbia CDP, MD
View full profile →- Median Home Value$439k
- Median Rent$1,592
- Owner Occupied %69.0%
- Broadband %95.2%
- Vacant %2.9%
- Median Year Built1979
Visual comparison (same scale)
Median Home Value
$977k$439k
Median Rent
—$1,592
Owner Occupied %
99.6%69.0%
Broadband %
98.8%95.2%
Vacant %
3.1%2.9%
Median Year Built
19951979
Climate & Location
ZIP 21794
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)700 ft
- Nearest Airport18.1 miles (29.1 km)
- Distance to Coast16.7 miles (26.8 km)
ZIP 21045
Columbia CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)156 ft
- Nearest Airport8.8 miles (14.2 km)
- Distance to Coast9.4 miles (15.1 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
700 ft156 ft
Nearest Airport
18.1 miles (29.1 km)8.8 miles (14.2 km)
Distance to Coast
16.7 miles (26.8 km)9.4 miles (15.1 km)
Infrastructure
ZIP 21045
Columbia CDP, MD
View full profile →- Work From Home %23.1%
- Walkability (0–100)73
- Broadband %95.2%
Visual comparison (same scale)
Work From Home %
20.1%23.1%
Walkability (0–100)
3073
Broadband %
98.8%95.2%
Frequently Asked Questions
How do ZIP 21794 and 21045 compare?
ZIP 21794 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated. ZIP 21045 is more diverse, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21794), orange the second (21045). 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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