21782 vs 21756 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21782, Orange = ZIP 21756.
Quick verdict: ZIP 21782 is more affordable rent. ZIP 21756 is wealthier, higher home values, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share.
Quick Facts
ZIP 21782
Mercersville CDP, MD
View full profile →- Population4,056
- Median Income$89,375
- Median Home Value$296k
- Median Rent$857
- Median Age48.1 yrs
- Poverty Rate2.7%
ZIP 21756
Keedysville town, MD
View full profile →- Population3,172
- Median Income$91,836
- Median Home Value$361k
- Median Rent$992
- Median Age45.7 yrs
- Poverty Rate2.6%
Visual comparison (same scale)
Population
4,0563,172
Median Income
$89,375$91,836
Median Home Value
$296k$361k
Median Rent
$857$992
Median Age
48.1 yrs45.7 yrs
Poverty Rate
2.7%2.6%
Demographics
ZIP 21782
Mercersville CDP, MD
View full profile →- White %97.3%
- Black %0.0%
- Asian %0.4%
- Hispanic %0.5%
- Age 0–17 %16.9%
- Age 18–64 %62.0%
- Age 65+ %21.1%
- Bachelor's+ %25.1%
- Diversity Index5/100
ZIP 21756
Keedysville town, MD
View full profile →- White %96.4%
- Black %0.0%
- Asian %0.6%
- Hispanic %0.5%
- Age 0–17 %23.6%
- Age 18–64 %57.6%
- Age 65+ %18.9%
- Bachelor's+ %28.9%
- Diversity Index7/100
Visual comparison (same scale)
White %
97.3%96.4%
Black %
0.0%0.0%
Asian %
0.4%0.6%
Hispanic %
0.5%0.5%
Age 0–17 %
16.9%23.6%
Age 18–64 %
62.0%57.6%
Age 65+ %
21.1%18.9%
Bachelor's+ %
25.1%28.9%
Diversity Index
5/1007/100
Economy
ZIP 21782
Mercersville CDP, MD
View full profile →- Median Income$89,375
- Unemployment %8.1%
- IRS Net Migration+238
- Work From Home %14.3%
ZIP 21756
Keedysville town, MD
View full profile →- Median Income$91,836
- Unemployment %5.3%
- IRS Net Migration+186
- Work From Home %28.3%
Visual comparison (same scale)
Median Income
$89,375$91,836
Unemployment %
8.1%5.3%
IRS Net Migration
+238+186
Work From Home %
14.3%28.3%
Housing
ZIP 21782
Mercersville CDP, MD
View full profile →- Median Home Value$296k
- Median Rent$857
- Owner Occupied %80.8%
- Broadband %84.7%
- Vacant %4.2%
- Median Year Built1978
ZIP 21756
Keedysville town, MD
View full profile →- Median Home Value$361k
- Median Rent$992
- Owner Occupied %95.2%
- Broadband %96.7%
- Vacant %7.1%
- Median Year Built1988
Visual comparison (same scale)
Median Home Value
$296k$361k
Median Rent
$857$992
Owner Occupied %
80.8%95.2%
Broadband %
84.7%96.7%
Vacant %
4.2%7.1%
Median Year Built
19781988
Climate & Location
ZIP 21782
Mercersville CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)400 ft
- Nearest Airport12.4 miles (20.0 km)
- Distance to Coast51.3 miles (82.6 km)
ZIP 21756
Keedysville town, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)400 ft
- Nearest Airport15.6 miles (25.0 km)
- Distance to Coast49.5 miles (79.7 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
400 ft400 ft
Nearest Airport
12.4 miles (20.0 km)15.6 miles (25.0 km)
Distance to Coast
51.3 miles (82.6 km)49.5 miles (79.7 km)
Infrastructure
ZIP 21782
Mercersville CDP, MD
View full profile →- Work From Home %14.3%
- Walkability (0–100)23
- Broadband %84.7%
ZIP 21756
Keedysville town, MD
View full profile →- Work From Home %28.3%
- Walkability (0–100)26
- Broadband %96.7%
Visual comparison (same scale)
Work From Home %
14.3%28.3%
Walkability (0–100)
2326
Broadband %
84.7%96.7%
Frequently Asked Questions
How do ZIP 21782 and 21756 compare?
ZIP 21782 is more affordable rent. ZIP 21756 is wealthier, higher home values, lower poverty rate, lower unemployment, more diverse, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (21782), orange the second (21756). 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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