The following information connects Lehigh Valley Area Municipal Information with the Postal Zip Codes associated with each Municipality.

Some of the Lehigh Valley Zip Codes overlap the boroughs, cities, and townships based on the Post Office that will deliver the mail to the home.

For instance, parts of Bethlehem Township have an Easton Mailing address with a zip code of 18045 (this is a Palmer Township zip code that also has mail delivered by Easton). That means that to search for homes in Bethlehem Township the search may also consist of listings in the 18045 Easton/Palmer zip code.

Some of the Municipalities are in Both Lehigh County and Northampton County and have different zip codes depending on where exactly the home is located. Bethlehem, Hanover Township, and Saucon Valley all border the county lines and have sections in Lehigh and Northampton Counties.