18621 vs 18651 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 18621, Orange = ZIP 18651.
Quick verdict: ZIP 18621 is wealthier, higher home values, more affordable rent, lower poverty rate, lower unemployment, more educated, higher work-from-home share. ZIP 18651 is more diverse.
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 18651
Larksville borough, PA
View full profile →- Population8,672
- Median Income$43,639
- Median Home Value$90k
- Median Rent$722
- Median Age43.8 yrs
- Poverty Rate18.9%
Visual comparison (same scale)
Population
4,9038,672
Median Income
$66,492$43,639
Median Home Value
$191k$90k
Median Rent
$698$722
Median Age
49.5 yrs43.8 yrs
Poverty Rate
5.5%18.9%
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 18651
Larksville borough, PA
View full profile →- White %83.0%
- Black %5.2%
- Asian %0.3%
- Hispanic %10.1%
- Age 0–17 %23.1%
- Age 18–64 %58.1%
- Age 65+ %18.8%
- Bachelor's+ %11.4%
- Diversity Index30/100
Visual comparison (same scale)
White %
89.9%83.0%
Black %
3.6%5.2%
Asian %
0.1%0.3%
Hispanic %
2.9%10.1%
Age 0–17 %
14.6%23.1%
Age 18–64 %
62.8%58.1%
Age 65+ %
22.6%18.8%
Bachelor's+ %
17.1%11.4%
Diversity Index
19/10030/100
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 18651
Larksville borough, PA
View full profile →- Median Income$43,639
- Unemployment %8.3%
- IRS Net Migration+395
- Work From Home %7.1%
Visual comparison (same scale)
Median Income
$66,492$43,639
Unemployment %
4.8%8.3%
IRS Net Migration
+223+395
Work From Home %
8.7%7.1%
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 18651
Larksville borough, PA
View full profile →- Median Home Value$90k
- Median Rent$722
- Owner Occupied %55.3%
- Broadband %77.0%
- Vacant %19.2%
- Median Year Built1943
Visual comparison (same scale)
Median Home Value
$191k$90k
Median Rent
$698$722
Owner Occupied %
91.5%55.3%
Broadband %
83.6%77.0%
Vacant %
15.6%19.2%
Median Year Built
19761943
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 18651
Larksville borough, PA
View full profile →- Snow Days/Year0 days
- Elevation (ft)930 ft
- Nearest Airport13.5 miles (21.7 km)
- Distance to Coast94.2 miles (151.6 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
1,095 ft930 ft
Nearest Airport
20.4 miles (32.8 km)13.5 miles (21.7 km)
Distance to Coast
100.5 miles (161.7 km)94.2 miles (151.6 km)
Infrastructure
ZIP 18621
Silkworth CDP, PA
View full profile →- Work From Home %8.7%
- Walkability (0–100)21
- Broadband %83.6%
ZIP 18651
Larksville borough, PA
View full profile →- Work From Home %7.1%
- Walkability (0–100)40
- Broadband %77.0%
Visual comparison (same scale)
Work From Home %
8.7%7.1%
Walkability (0–100)
2140
Broadband %
83.6%77.0%
Frequently Asked Questions
How do ZIP 18621 and 18651 compare?
ZIP 18621 is wealthier, higher home values, more affordable rent, lower poverty rate, lower unemployment, more educated, higher work-from-home share. ZIP 18651 is more diverse.
What do the blue and orange colors mean?
Blue represents the first ZIP (18621), orange the second (18651). 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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