About ZIP Code 18101
ZIP code 18101 is assigned to Allentown, Lehigh County, Pennsylvania, United States. It falls in the Eastern Time (ET) zone. The estimated population of this ZIP code area is 6,120 with a density of 7,694.6 people per square mile.
Location Details
ZIP Code18101
CityAllentown
CountyLehigh County
StatePennsylvania
CountryUnited States
TimezoneEastern Time (ET)
Timezone IDAmerica/New_York
Latitude40.6030
Longitude-75.4698
ZIP TypeStandard ZIP
Post Office
Address1000 POSTAL RD SIDE
CityALLENTOWN
StatePA
Nearby ZIP Codes in Pennsylvania
Frequently Asked Questions
What city is ZIP code 18101 in?
ZIP code 18101 is in Allentown, Lehigh County, Pennsylvania, United States.
What county is ZIP code 18101 in?
ZIP code 18101 is in Lehigh County, Pennsylvania.
What timezone is ZIP code 18101 in?
ZIP code 18101 is in the Eastern Time (ET) zone (America/New_York).
What is the population of ZIP code 18101?
The estimated population of ZIP code 18101 is 6,120 people with a density of 7,694.6 people per square mile.
What state is ZIP code 18101 in?
ZIP code 18101 is in Pennsylvania (PA), United States.
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Data Source: United States Postal Service (USPS) & US Census Bureau (ZCTA data) · Public domain government data. For official ZIP code information visit tools.usps.com. Data is periodically updated but may not reflect the most recent changes.