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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Oakland County ZIP Codes

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

County State ZIP Code City Area Codes
Oakland County MI 48348 Clarkston 248, 947
Oakland County MI 48350 Davisburg 248, 947
Oakland County MI 48356 Highland 248, 947
Oakland County MI 48357 Highland 248, 947
Oakland County MI 48359 Lake Orion 248, 947
Oakland County MI 48360 Lake Orion 248, 947
Oakland County MI 48361 Lake Orion 248
Oakland County MI 48362 Lake Orion 248, 947
Oakland County MI 48363 Oakland 248, 586, 947
Oakland County MI 48366 Lakeville 248
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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.