Hawaii has the tightest postal geography in the country. Every postal code in the state begins 967 or 968 — two three-digit prefixes for an entire state, where California spans sixty. Only Rhode Island is as concentrated. If your address validation keys on prefix ranges, Hawaii is nearly free; if it assumes a state spans dozens of sectional centre facilities, Hawaii is where that assumption shows.
The more interesting feature is in the house number. Addresses outside central Honolulu are commonly written with a hyphenated number — 45-955 Kamehameha Highway — where the digits before the hyphen are not part of the street numbering at all. They come from the Tax Map Key, the parcel identifier the counties maintain, which is structured as zone, then section, then plat, then parcel. The prefix names the zone and section the property sits in; the digits after the hyphen are the number along the road.
That single hyphen breaks more code than it should. A house-number field validated as digits only rejects it. A parser that splits the delivery line on non-alphanumerics turns one address into two. A system that normalises by stripping punctuation silently converts 45-955 into 45955, which is a different address and, unhelpfully, still looks plausible. Hawaii belongs in any fixture set that will meet US addresses generally, not only in a set for Hawaii.
As with Utah's grid, the generator does not reproduce this: it pairs a real Hawaii locality and a genuinely valid postal code with an ordinary invented street number. Take the hyphenated form from this page and write it by hand when a parser is what you are testing.