U.S. postal lookup

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.

42,735 verified records
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Oklahoma ZIP Codes

Complete postal directory, details, and geographic map for the State of Oklahoma.

State ZIP Code City County Area Codes
OK 74850 Lamar Hughes County 405, 539, 572, 918
OK 74851 Mcloud Pottawatomie County 405, 572
OK 74852 Macomb Pottawatomie County 405, 572
OK 74854 Maud Pottawatomie County 405, 572, 580
OK 74855 Meeker Lincoln County 405, 539, 572, 918
OK 74856 Mill Creek Johnston County 580
OK 74857 Newalla Cleveland County 405, 572
OK 74859 Okemah Okfuskee County 405, 539, 572, 918
OK 74860 Paden Okfuskee County 405, 539, 572, 918
OK 74864 Prague Lincoln County 405, 539, 572, 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.