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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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Ottawa County ZIP Codes

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

County State ZIP Code City Area Codes
Ottawa County OK 74343 Fairland 539, 918
Ottawa County OK 74354 Miami 539, 620, 918
Ottawa County OK 74355 Miami 918
Ottawa County OK 74358 North Miami 539, 918
Ottawa County OK 74360 Picher 539, 620, 918
Ottawa County OK 74363 Quapaw 417, 539, 620, 918
Ottawa County OK 74370 Wyandotte 417, 539, 918
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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.