Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/MP

Northern Mariana Islands ZIP codes

ZIP codes
3
Counties
3
Metro & micro areas
0
Land area
118 sq mi

Counties in Northern Mariana Islands

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Area codes in Northern Mariana Islands, most searched first

Largest cities and towns

All 3 ZIP codes in Northern Mariana Islands

ZIP codes in Northern Mariana Islands
ZIP City Type
96950 Saipan , MP Standard
96951 Rota , MP Standard
96952 Tinian , MP Standard

Cite this page

zipcodes.pro. “Northern Mariana Islands ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mp

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