21733 vs 21782 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 21733, Orange = ZIP 21782.
Quick verdict: ZIP 21733 is wealthier, higher home values, lower unemployment, more diverse, more educated, higher work-from-home share. ZIP 21782 is lower poverty rate.
Quick Facts
ZIP 21733
St. James CDP, MD
View full profile →- Population1,240
- Median Income$106,667
- Median Home Value$316k
- Median Rent—
- Median Age38.1 yrs
- Poverty Rate3.1%
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%
Visual comparison (same scale)
Population
1,2404,056
Median Income
$106,667$89,375
Median Home Value
$316k$296k
Median Rent
—$857
Median Age
38.1 yrs48.1 yrs
Poverty Rate
3.1%2.7%
Demographics
ZIP 21733
St. James CDP, MD
View full profile →- White %81.9%
- Black %2.1%
- Asian %0.0%
- Hispanic %11.1%
- Age 0–17 %21.4%
- Age 18–64 %59.2%
- Age 65+ %19.4%
- Bachelor's+ %31.9%
- Diversity Index31/100
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
Visual comparison (same scale)
White %
81.9%97.3%
Black %
2.1%0.0%
Asian %
0.0%0.4%
Hispanic %
11.1%0.5%
Age 0–17 %
21.4%16.9%
Age 18–64 %
59.2%62.0%
Age 65+ %
19.4%21.1%
Bachelor's+ %
31.9%25.1%
Diversity Index
31/1005/100
Economy
ZIP 21733
St. James CDP, MD
View full profile →- Median Income$106,667
- Unemployment %0.0%
- IRS Net Migration+73
- Work From Home %17.6%
ZIP 21782
Mercersville CDP, MD
View full profile →- Median Income$89,375
- Unemployment %8.1%
- IRS Net Migration+238
- Work From Home %14.3%
Visual comparison (same scale)
Median Income
$106,667$89,375
Unemployment %
0.0%8.1%
IRS Net Migration
+73+238
Work From Home %
17.6%14.3%
Housing
ZIP 21733
St. James CDP, MD
View full profile →- Median Home Value$316k
- Median Rent—
- Owner Occupied %86.0%
- Broadband %92.3%
- Vacant %0.0%
- Median Year Built1968
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
Visual comparison (same scale)
Median Home Value
$316k$296k
Median Rent
—$857
Owner Occupied %
86.0%80.8%
Broadband %
92.3%84.7%
Vacant %
0.0%4.2%
Median Year Built
19681978
Climate & Location
ZIP 21733
St. James CDP, MD
View full profile →- Snow Days/Year0 days
- Elevation (ft)532 ft
- Nearest Airport11.1 miles (17.9 km)
- Distance to Coast56.0 miles (90.1 km)
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)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
532 ft400 ft
Nearest Airport
11.1 miles (17.9 km)12.4 miles (20.0 km)
Distance to Coast
56.0 miles (90.1 km)51.3 miles (82.6 km)
Infrastructure
ZIP 21733
St. James CDP, MD
View full profile →- Work From Home %17.6%
- Walkability (0–100)—
- Broadband %92.3%
ZIP 21782
Mercersville CDP, MD
View full profile →- Work From Home %14.3%
- Walkability (0–100)23
- Broadband %84.7%
Visual comparison (same scale)
Work From Home %
17.6%14.3%
Walkability (0–100)
—23
Broadband %
92.3%84.7%
Frequently Asked Questions
How do ZIP 21733 and 21782 compare?
ZIP 21733 is wealthier, higher home values, lower unemployment, more diverse, more educated, higher work-from-home share. ZIP 21782 is lower poverty rate.
What do the blue and orange colors mean?
Blue represents the first ZIP (21733), orange the second (21782). 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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