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U.S. ZIP Codes Database 2026

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Armstrong County ZIP Codes

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

County State ZIP Code City Area Codes
Armstrong County PA 15673 North Apollo 724, 878
Armstrong County PA 15682 Schenley 724, 878
Armstrong County PA 15686 Spring Church 724, 878
Armstrong County PA 15736 Elderton 724, 878
Armstrong County PA 15774 Shelocta 724, 878
Armstrong County PA 16028 East Brady 582, 724, 814, 878
Armstrong County PA 16201 Kittanning 582, 724, 814, 878
Armstrong County PA 16210 Adrian 724, 878
Armstrong County PA 16212 Cadogan 724, 878
Armstrong County PA 16215 Kittanning 724
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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.