An ethnic majority
If the U.S. is a melting pot, Hawaii is its boiling point. Demographically, Hawaii has the highest percentage of multiracial-Americans (23.6%), as well as the lowest percentage of white Americans (24.7%) of any state. The next most prevalent ethnicities are Filipinos (14.5%), Japanese (13.6%), and native Hawaiians or other Pacific Islanders (10%).
The lack of a clear ethnic majority contributes a great deal to the cosmopolitan diversity of the Aloha state. It is, after all, where East meets West, and everything from the food (SPAM musubi) to the clothing (slippahs and aloha shirts) to cultural norms (removing your shoes before entering a home) are influenced by the unique demographic makeup.