Sorry folks, but your all wrong...
Honolulu is the largest city in the world. According to the state constitution any island (or islet) not named as belonging to a county belongs to Honolulu. This makes all islands within the Hawaiian Archipelago that stretch to Midway Island (1,500 miles northwest of Hawaii) part of the City of Honolulu. Honolulu is about 1,500 miles long or in other words it would streach halfway across the continental US making it by far the largest city in the world.
captainmike, you are either forgetting, ignoring, or ignorant of the fact that each island in the State of Hawaii is also a separate county within the state. Thus, Honolulu is located in Oahu County and can claim no territory outside of its city limits, not even towns which are in the same District as Honolulu. Pearl City, right on the outskirts, is not a part of Honolulu. And certainly Hilo, the second largest city, is not. It is located in the County of Hawaii, on the Big Island, District of Hilo.
Your conclusion sounds nice in theory, but it just ain't so.