Doesn't surprise me at all.
mainstreet.com claims that hawaii has the most millionaires (as a percentage of the state's population). the article claims that 6.41% of hawaii's households are millionaire households. they must live on the other side of the island.
to put it into perspective, the article claims that #2 is maryland with 6.26% of its households being millionaires.
Property values are the reason why Hawaii has the most millionaires. Even a 1,200 sq ft dump in town is worth half a mil.