7.78% of 39.51 million (2019) which is the population of California equals

3,073,878 as of 2019 this is approximately how
many millionaires lived in California which is the
highest per capita of millionaires of any state in the
United States.Though Most millionaires live along 
the coast from San Diego to San Francisco they also
live all sort of other locations like Palm Springs 
and in the Sierra Nevada Mountains around
Lake Tahoe and the like. Palm Springs being a winter
location but Tahoe being a year round resort.

California (all by itself) is the 5th largest economy 
on earth. Larger than India and Smaller than 
Germany.