Williamsport, PA zip codes
Williamsport, Pennsylvania has 4 zip codes (2 residential, 2 PO box or single-organization). Most of it is in Lycoming County. Together these zip codes are home to about 54K people.
Zip codes
4
Population
54K
All zips combined
Largest zip
17701
43,104 residents
Income range
$53K–$70K
Median by zip