14. Colorado
Number of millionaire households per 100 households: 5.85
An auspicious sign for the people of this state that ranked 14th on our list of states with the most millionaires per capita in America, Colorado has moved up four places in 2015 as compared to 2014, with its ratio of millionaire households to total households increasing from 5.66% to 5.85% over the period of two years.