21738 vs 21104 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21738, Orange = ZIP 21104.
Quick verdict: ZIP 21738 is wealthier, higher home values, lower unemployment, more educated, higher work-from-home share. ZIP 21104 is lower poverty rate, more diverse.
Quick Facts
ZIP 21738
MD
View full profile →- Population3,668
- Median Income$230,429
- Median Home Value$889k
- Median Age47.0 yrs
- Poverty Rate3.0%
ZIP 21104
Eldersburg CDP, MD
View full profile →- Population5,786
- Median Income$199,803
- Median Home Value$660k
- Median Age46.0 yrs
- Poverty Rate2.5%
Visual comparison (same scale)
Population
3,6685,786
Median Income
$230,429$199,803
Median Home Value
$889k$660k
Median Age
47.0 yrs46.0 yrs
Poverty Rate
3.0%2.5%
Demographics
ZIP 21738
MD
View full profile →- White %87.4%
- Black %2.2%
- Asian %5.9%
- Hispanic %0.5%
- Age 0–17 %25.3%
- Age 18–64 %52.7%
- Age 65+ %22.1%
- Bachelor's+ %75.9%
- Diversity Index23/100
ZIP 21104
Eldersburg CDP, MD
View full profile →- White %75.9%
- Black %4.2%
- Asian %10.3%
- Hispanic %1.8%
- Age 0–17 %20.5%
- Age 18–64 %60.1%
- Age 65+ %19.4%
- Bachelor's+ %63.3%
- Diversity Index41/100
Visual comparison (same scale)
White %
87.4%75.9%
Black %
2.2%4.2%
Asian %
5.9%10.3%
Hispanic %
0.5%1.8%
Age 0–17 %
25.3%20.5%
Age 18–64 %
52.7%60.1%
Age 65+ %
22.1%19.4%
Bachelor's+ %
75.9%63.3%
Diversity Index
23/10041/100
Economy
ZIP 21738
MD
View full profile →- Median Income$230,429
- Unemployment %2.4%
- IRS Net Migration+215
- Work From Home %23.9%
ZIP 21104
Eldersburg CDP, MD
View full profile →- Median Income$199,803
- Unemployment %2.5%
- IRS Net Migration+340
- Work From Home %19.6%
Visual comparison (same scale)
Median Income
$230,429$199,803
Unemployment %
2.4%2.5%
IRS Net Migration
+215+340
Work From Home %
23.9%19.6%
Housing
ZIP 21738
MD
View full profile →- Median Home Value$889k
- Owner Occupied %98.6%
- Broadband %95.6%
- Vacant %0.0%
- Median Year Built1991
ZIP 21104
Eldersburg CDP, MD
View full profile →- Median Home Value$660k
- Owner Occupied %96.9%
- Broadband %96.8%
- Vacant %2.7%
- Median Year Built1994
Visual comparison (same scale)
Median Home Value
$889k$660k
Owner Occupied %
98.6%96.9%
Broadband %
95.6%96.8%
Vacant %
0.0%2.7%
Median Year Built
19911994
Climate & Location
ZIP 21738
MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)700 ft
- Nearest Airport19.6 miles (31.6 km)
- Distance to Coast19.8 miles (31.9 km)
ZIP 21104
Eldersburg CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)235 ft
- Nearest Airport17.6 miles (28.4 km)
- Distance to Coast14.6 miles (23.5 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
700 ft235 ft
Nearest Airport
19.6 miles (31.6 km)17.6 miles (28.4 km)
Distance to Coast
19.8 miles (31.9 km)14.6 miles (23.5 km)
Infrastructure
ZIP 21104
Eldersburg CDP, MD
View full profile →- Work From Home %19.6%
- Walkability (0–100)32
- Broadband %96.8%
Visual comparison (same scale)
Work From Home %
23.9%19.6%
Walkability (0–100)
3232
Broadband %
95.6%96.8%
Frequently Asked Questions
How do ZIP 21738 and 21104 compare?
ZIP 21738 is wealthier, higher home values, lower unemployment, more educated, higher work-from-home share. ZIP 21104 is lower poverty rate, more diverse.
What do the blue and orange colors mean?
Blue represents the first ZIP (21738), orange the second (21104). 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).
Continue exploring