Allentown, PA zip codes
Allentown, Pennsylvania has 8 zip codes (7 residential, 1 PO box or single-organization). Most of it is in Lehigh County. Together these zip codes are home to about 179K people.
Zip codes
8
Population
179K
All zips combined
Largest zip
18102
51,001 residents
Income range
$43K–$95K
Median by zip