ZIP Codes in Hawaii
Hawaii is the only US state made up entirely of islands, and its ZIP codes reflect that unique geography - rather than covering continuous stretches of mainland, they're split across the eight main islands, with population concentrated overwhelmingly on Oahu. With around 1.4 million residents spread across the archipelago, Hawaii's postal system has to account for logistics that most other states never have to consider, since goods and mail between islands typically move by air or sea rather than by road.
How ZIP Codes Are Organized Across the State
Hawaii's ZIP codes fall within the 96700–96999 range under the USPS system, the westernmost and most remote block of numbers in the entire country. Honolulu and the rest of Oahu occupy the lower end around 967xx and 968xx, while the outer islands - Maui, the Big Island of Hawaii, Kauai, and Molokai - carry codes spread across the remainder of the range, generally grouped by island rather than by mainland-style regional proximity.
Hawaii's Major Population Centers
The chart below shows just how dominant Oahu, and Honolulu in particular, is within Hawaii's overall population compared to the other islands.
Honolulu's ZIP codes cover Hawaii's capital and by far its largest city, home to the state government, Pearl Harbor, and the bulk of the state's tourism infrastructure around Waikiki. East Honolulu and Kailua, both on Oahu, carry a more residential, suburban character compared to the dense urban core of downtown Honolulu itself. For a broader comparison of how Hawaii's numbering fits into the national system, our full US ZIP code directory covers every state side by side.
The Outer Islands: Maui, Kauai, and the Big Island
Beyond Oahu, Hawaii's outer islands each carry their own distinct ZIP code clusters. Maui's ZIP codes cover both the bustling resort areas around Lahaina and Kihei and much quieter agricultural upcountry regions. The Big Island of Hawaii, the largest island by land area but not the most populous, has ZIP codes split between the Hilo side, wetter and more agricultural, and the drier, more tourism-oriented Kona side. Kauai, the smallest and most rural of the major visitor islands, rounds out the outer-island ZIP code map with some of the lowest population density in the state.
No Land Borders, Unique Postal Logistics
Unlike every other US state except Alaska, Hawaii shares no land border with any neighboring state - its closest US neighbor, California, sits over 2,500 miles across open ocean. This isolation means every ZIP code in the state ultimately depends on air or sea freight for goods and mail, a logistical reality that shapes shipping costs and delivery times across the islands in a way that mainland ZIP codes simply don't experience.
Why ZIP Codes Matter Beyond Mail
In Hawaii, ZIP codes carry particular weight in the real estate and tourism sectors. Property values can vary enormously even within a single ZIP code, given the mix of oceanfront resort development and inland residential neighborhoods found on most islands. Interisland shipping companies rely on ZIP-level data to route goods correctly between Oahu's main distribution hubs and the outer islands. And with tourism forming such a large part of the state's economy, ZIP codes around Waikiki, Lahaina, and Kona see enormous seasonal population swings driven by visitors rather than residents.
Finding the Right ZIP Code
Use the list below to browse Hawaii's ZIP codes by city, island, or population - sorted so the most populous areas surface first. Each entry links through to a detailed page with additional demographic data. If you're trying to identify the ZIP code for a specific address rather than browsing by city, the search tool at the top of this page will get you there faster than scrolling through the full list.
Frequently Asked Questions
How many ZIP codes does Hawaii have?
Hawaii has around 90 ZIP codes, split across its main islands, with the majority concentrated on Oahu around Honolulu.
What ZIP code range does Hawaii use?
Hawaii ZIP codes fall between 96700 and 96999, the westernmost block of numbers in the entire USPS system.
Are ZIP codes grouped by island in Hawaii?
Generally yes - Oahu, Maui, the Big Island, Kauai, and Molokai each have their own clusters of ZIP codes rather than sharing a continuous mainland-style range.
Can I look up a Hawaii ZIP code by city name?
Yes, use the search tool on this page or browse the full list below, which is organized by city and sorted by population.
Whether you're relocating to Oahu, researching property on Maui or the Big Island, or simply trying to pin down the right ZIP code for a specific Hawaii address, the data below covers every island in the state.