21875 vs 21830 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21875, Orange = ZIP 21830.
Quick verdict: ZIP 21875 is lower poverty rate, more diverse. ZIP 21830 is wealthier, higher home values, more affordable rent, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 21875
Delmar town, MD
View full profile →- Population7,455
- Median Income$76,007
- Median Home Value$227k
- Median Rent$1,269
- Median Age40.7 yrs
- Poverty Rate5.6%
ZIP 21830
Quantico CDP, MD
View full profile →- Population5,001
- Median Income$110,015
- Median Home Value$245k
- Median Rent$1,100
- Median Age38.9 yrs
- Poverty Rate6.4%
Visual comparison (same scale)
Population
7,4555,001
Median Income
$76,007$110,015
Median Home Value
$227k$245k
Median Rent
$1,269$1,100
Median Age
40.7 yrs38.9 yrs
Poverty Rate
5.6%6.4%
Demographics
ZIP 21875
Delmar town, MD
View full profile →- White %64.6%
- Black %19.3%
- Asian %5.5%
- Hispanic %8.9%
- Age 0–17 %17.4%
- Age 18–64 %65.9%
- Age 65+ %16.7%
- Bachelor's+ %26.7%
- Diversity Index53/100
ZIP 21830
Quantico CDP, MD
View full profile →- White %80.4%
- Black %13.6%
- Asian %0.2%
- Hispanic %2.7%
- Age 0–17 %24.0%
- Age 18–64 %62.4%
- Age 65+ %13.6%
- Bachelor's+ %39.2%
- Diversity Index33/100
Visual comparison (same scale)
White %
64.6%80.4%
Black %
19.3%13.6%
Asian %
5.5%0.2%
Hispanic %
8.9%2.7%
Age 0–17 %
17.4%24.0%
Age 18–64 %
65.9%62.4%
Age 65+ %
16.7%13.6%
Bachelor's+ %
26.7%39.2%
Diversity Index
53/10033/100
Economy
ZIP 21875
Delmar town, MD
View full profile →- Median Income$76,007
- Unemployment %4.9%
- IRS Net Migration+438
- Work From Home %6.3%
ZIP 21830
Quantico CDP, MD
View full profile →- Median Income$110,015
- Unemployment %4.6%
- IRS Net Migration+294
- Work From Home %14.9%
Visual comparison (same scale)
Median Income
$76,007$110,015
Unemployment %
4.9%4.6%
IRS Net Migration
+438+294
Work From Home %
6.3%14.9%
Housing
ZIP 21875
Delmar town, MD
View full profile →- Median Home Value$227k
- Median Rent$1,269
- Owner Occupied %70.8%
- Broadband %94.2%
- Vacant %7.3%
- Median Year Built1994
ZIP 21830
Quantico CDP, MD
View full profile →- Median Home Value$245k
- Median Rent$1,100
- Owner Occupied %86.3%
- Broadband %94.2%
- Vacant %3.7%
- Median Year Built1998
Visual comparison (same scale)
Median Home Value
$227k$245k
Median Rent
$1,269$1,100
Owner Occupied %
70.8%86.3%
Broadband %
94.2%94.2%
Vacant %
7.3%3.7%
Median Year Built
19941998
Climate & Location
ZIP 21875
Delmar town, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)20 ft
- Nearest Airport7.1 miles (11.5 km)
- Distance to Coast11.5 miles (18.5 km)
ZIP 21830
Quantico CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)20 ft
- Nearest Airport12.8 miles (20.6 km)
- Distance to Coast2.2 miles (3.5 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
20 ft20 ft
Nearest Airport
7.1 miles (11.5 km)12.8 miles (20.6 km)
Distance to Coast
11.5 miles (18.5 km)2.2 miles (3.5 km)
Infrastructure
ZIP 21875
Delmar town, MD
View full profile →- Work From Home %6.3%
- Walkability (0–100)32
- Broadband %94.2%
ZIP 21830
Quantico CDP, MD
View full profile →- Work From Home %14.9%
- Walkability (0–100)27
- Broadband %94.2%
Visual comparison (same scale)
Work From Home %
6.3%14.9%
Walkability (0–100)
3227
Broadband %
94.2%94.2%
Frequently Asked Questions
How do ZIP 21875 and 21830 compare?
ZIP 21875 is lower poverty rate, more diverse. ZIP 21830 is wealthier, higher home values, more affordable rent, lower unemployment, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21875), orange the second (21830). 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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