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U.S. ZIP Codes Database 2026

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Juniata County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Juniata County.

County State ZIP Code City Area Codes
Juniata County PA 17014 Cocolamus 223, 717
Juniata County PA 17021 East Waterford 223, 582, 717, 814
Juniata County PA 17035 Honey Grove 223, 717
Juniata County PA 17049 Mc Alisterville 223, 717
Juniata County PA 17056 Mexico 223, 717
Juniata County PA 17058 Mifflin 223, 717
Juniata County PA 17059 Mifflintown 223, 717
Juniata County PA 17076 Oakland Mills 223, 717
Juniata County PA 17082 Port Royal 223, 717
Juniata County PA 17086 Richfield 223, 272, 570, 717
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.