18621 vs 18656 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 18621, Orange = ZIP 18656.
Quick verdict: ZIP 18621 is more diverse. ZIP 18656 is wealthier, higher home values, more affordable rent, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 18621
Silkworth CDP, PA
View full profile →- Population4,903
- Median Income$66,492
- Median Home Value$191k
- Median Rent$698
- Median Age49.5 yrs
- Poverty Rate5.5%
ZIP 18656
PA
View full profile →- Population2,128
- Median Income$74,764
- Median Home Value$207k
- Median Rent$681
- Median Age48.4 yrs
- Poverty Rate5.2%
Visual comparison (same scale)
Population
4,9032,128
Median Income
$66,492$74,764
Median Home Value
$191k$207k
Median Rent
$698$681
Median Age
49.5 yrs48.4 yrs
Poverty Rate
5.5%5.2%
Demographics
ZIP 18621
Silkworth CDP, PA
View full profile →- White %89.9%
- Black %3.6%
- Asian %0.1%
- Hispanic %2.9%
- Age 0–17 %14.6%
- Age 18–64 %62.8%
- Age 65+ %22.6%
- Bachelor's+ %17.1%
- Diversity Index19/100
ZIP 18656
PA
View full profile →- White %95.7%
- Black %0.3%
- Asian %0.8%
- Hispanic %0.0%
- Age 0–17 %19.0%
- Age 18–64 %59.0%
- Age 65+ %22.0%
- Bachelor's+ %24.7%
- Diversity Index8/100
Visual comparison (same scale)
White %
89.9%95.7%
Black %
3.6%0.3%
Asian %
0.1%0.8%
Hispanic %
2.9%0.0%
Age 0–17 %
14.6%19.0%
Age 18–64 %
62.8%59.0%
Age 65+ %
22.6%22.0%
Bachelor's+ %
17.1%24.7%
Diversity Index
19/1008/100
Economy
ZIP 18621
Silkworth CDP, PA
View full profile →- Median Income$66,492
- Unemployment %4.8%
- IRS Net Migration+223
- Work From Home %8.7%
ZIP 18656
PA
View full profile →- Median Income$74,764
- Unemployment %4.2%
- IRS Net Migration+97
- Work From Home %9.8%
Visual comparison (same scale)
Median Income
$66,492$74,764
Unemployment %
4.8%4.2%
IRS Net Migration
+223+97
Work From Home %
8.7%9.8%
Housing
ZIP 18621
Silkworth CDP, PA
View full profile →- Median Home Value$191k
- Median Rent$698
- Owner Occupied %91.5%
- Broadband %83.6%
- Vacant %15.6%
- Median Year Built1976
ZIP 18656
PA
View full profile →- Median Home Value$207k
- Median Rent$681
- Owner Occupied %93.3%
- Broadband %86.2%
- Vacant %17.1%
- Median Year Built1982
Visual comparison (same scale)
Median Home Value
$191k$207k
Median Rent
$698$681
Owner Occupied %
91.5%93.3%
Broadband %
83.6%86.2%
Vacant %
15.6%17.1%
Median Year Built
19761982
Climate & Location
ZIP 18621
Silkworth CDP, PA
View full profile →- Snow Days/Year0 days
- Elevation (ft)1,095 ft
- Nearest Airport20.4 miles (32.8 km)
- Distance to Coast100.5 miles (161.7 km)
ZIP 18656
PA
View full profile →- Snow Days/Year0 days
- Elevation (ft)1,095 ft
- Nearest Airport23.9 miles (38.5 km)
- Distance to Coast107.8 miles (173.5 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
1,095 ft1,095 ft
Nearest Airport
20.4 miles (32.8 km)23.9 miles (38.5 km)
Distance to Coast
100.5 miles (161.7 km)107.8 miles (173.5 km)
Infrastructure
ZIP 18621
Silkworth CDP, PA
View full profile →- Work From Home %8.7%
- Walkability (0–100)21
- Broadband %83.6%
Visual comparison (same scale)
Work From Home %
8.7%9.8%
Walkability (0–100)
2123
Broadband %
83.6%86.2%
Frequently Asked Questions
How do ZIP 18621 and 18656 compare?
ZIP 18621 is more diverse. ZIP 18656 is wealthier, higher home values, more affordable rent, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (18621), orange the second (18656). 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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