21791 vs 21701 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21791, Orange = ZIP 21701.
Quick verdict: ZIP 21791 is more affordable rent, lower poverty rate, lower unemployment. ZIP 21701 is wealthier, higher home values, more diverse, more educated, higher work-from-home share.
Quick Facts
ZIP 21791
Union Bridge town, MD
View full profile →- Population4,734
- Median Income$90,460
- Median Home Value$370k
- Median Rent$1,005
- Median Age40.9 yrs
- Poverty Rate6.5%
ZIP 21701
Frederick city, MD
View full profile →- Population41,340
- Median Income$102,306
- Median Home Value$405k
- Median Rent$1,436
- Median Age39.3 yrs
- Poverty Rate7.3%
Visual comparison (same scale)
Population
4,73441,340
Median Income
$90,460$102,306
Median Home Value
$370k$405k
Median Rent
$1,005$1,436
Median Age
40.9 yrs39.3 yrs
Poverty Rate
6.5%7.3%
Demographics
ZIP 21791
Union Bridge town, MD
View full profile →- White %93.9%
- Black %1.8%
- Asian %2.4%
- Hispanic %1.1%
- Age 0–17 %21.8%
- Age 18–64 %58.8%
- Age 65+ %19.4%
- Bachelor's+ %26.3%
- Diversity Index12/100
ZIP 21701
Frederick city, MD
View full profile →- White %73.1%
- Black %12.0%
- Asian %3.4%
- Hispanic %8.0%
- Age 0–17 %19.3%
- Age 18–64 %62.9%
- Age 65+ %17.8%
- Bachelor's+ %49.7%
- Diversity Index44/100
Visual comparison (same scale)
White %
93.9%73.1%
Black %
1.8%12.0%
Asian %
2.4%3.4%
Hispanic %
1.1%8.0%
Age 0–17 %
21.8%19.3%
Age 18–64 %
58.8%62.9%
Age 65+ %
19.4%17.8%
Bachelor's+ %
26.3%49.7%
Diversity Index
12/10044/100
Economy
ZIP 21791
Union Bridge town, MD
View full profile →- Median Income$90,460
- Unemployment %2.4%
- IRS Net Migration+278
- Work From Home %8.1%
ZIP 21701
Frederick city, MD
View full profile →- Median Income$102,306
- Unemployment %3.8%
- IRS Net Migration+2,429
- Work From Home %19.0%
Visual comparison (same scale)
Median Income
$90,460$102,306
Unemployment %
2.4%3.8%
IRS Net Migration
+278+2,429
Work From Home %
8.1%19.0%
Housing
ZIP 21791
Union Bridge town, MD
View full profile →- Median Home Value$370k
- Median Rent$1,005
- Owner Occupied %83.6%
- Broadband %86.4%
- Vacant %5.6%
- Median Year Built1964
ZIP 21701
Frederick city, MD
View full profile →- Median Home Value$405k
- Median Rent$1,436
- Owner Occupied %67.2%
- Broadband %91.9%
- Vacant %6.6%
- Median Year Built1984
Visual comparison (same scale)
Median Home Value
$370k$405k
Median Rent
$1,005$1,436
Owner Occupied %
83.6%67.2%
Broadband %
86.4%91.9%
Vacant %
5.6%6.6%
Median Year Built
19641984
Climate & Location
ZIP 21791
Union Bridge town, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)403 ft
- Nearest Airport31.2 miles (50.2 km)
- Distance to Coast33.5 miles (54.0 km)
ZIP 21701
Frederick city, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)380 ft
- Nearest Airport27.9 miles (44.9 km)
- Distance to Coast38.0 miles (61.1 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
403 ft380 ft
Nearest Airport
31.2 miles (50.2 km)27.9 miles (44.9 km)
Distance to Coast
33.5 miles (54.0 km)38.0 miles (61.1 km)
Infrastructure
ZIP 21791
Union Bridge town, MD
View full profile →- Work From Home %8.1%
- Walkability (0–100)24
- Broadband %86.4%
ZIP 21701
Frederick city, MD
View full profile →- Work From Home %19.0%
- Walkability (0–100)68
- Broadband %91.9%
Visual comparison (same scale)
Work From Home %
8.1%19.0%
Walkability (0–100)
2468
Broadband %
86.4%91.9%
Frequently Asked Questions
How do ZIP 21791 and 21701 compare?
ZIP 21791 is more affordable rent, lower poverty rate, lower unemployment. ZIP 21701 is wealthier, higher home values, more diverse, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21791), orange the second (21701). 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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