North Dakota led the country when it comes to the growth of millionaires per capita last year, helped no doubt by the energy boom. The state added 1,800 new millionaire households to its population of 294,000 households, bringing its millionaire ratio to 4.59 percent from 4 percent in 2012.
The other big gainers last year were Maine, Louisiana and South Dakota.
(Read more: New York is running out of luxury condos)
The biggest loser when it comes to millionaires per capita was Nevada, which lost 8,000 millionaire households and saw its millionaire ratio drop to 4.35 percent from 5.13 percent in 2012. Other big losers included Florida, Michigan and Idaho.
When it comes to the sheer total of millionaire households in each state, California has the most, with 777,624 millionaire households. That is followed by Texas, with 456,949, and New York, with 429,153.
So how does your state rank? Click here.
—By CNBC's Robert Frank. Follow him on Twitter @robtfrank.
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