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U.S. ZIP Codes Database 2026

Name: Alpena County
Address: US

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Alpena County ZIP Codes

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

County	State	ZIP Code	City	Area Codes
Alpena County	MI	49707	Alpena	`989`
Alpena County	MI	49744	Herron	`989`
Alpena County	MI	49747	Hubbard Lake	`989`
Alpena County	MI	49753	Lachine	`989`
Alpena County	MI	49766	Ossineke	`989`

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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.