There are 10 zip codes in Juniata County, Pennsylvania. The most populated is 17059, located in Mifflintown. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
170597,645Mifflintown
170493,145McAlisterville
170823,004Port Royal
170942,559Thompsontown
170581,599Mifflin
17021969East Waterford
17035833Honey Grove
17014152Cocolamus
17076123Oakland Mills
1705632Mexico

Zip Codes in Juniata County, Pennsylvania by Population (2024)