How many millionaires are there in the U.S.?

Maryland has the highest ratio of millionaire households at 7.55 percent, according to the report released earlier this year.

Where liquid assets are concentrated in American households: 

Millionaire households: Nearly 6.8 million U.S. households, or 5.5 percent of all U.S. households, had $1 million or more in investable assets. These households control approximately $20 trillion in total liquid wealth, about 59 percent of the U.S. total.

Tip-top heavy: The top 1 percent of wealthiest U.S. households now holds 24 percent of liquid wealth.

Bottom 70 percent non-affluent: Non-affluent households, representing 70 percent of U.S. households, control less than 10 percent of the nation's liquid wealth.

Affluent households: There are 16.4 million households with between $250,000 and $1 million in investable assets. This group controls $8.5 trillion in investable assets, or 35 percent of total in the U.S.; however, this broadly affluent group lost $56 billion collectively between 2015 and 2016. The vast majority of the losses ($54 billion) hit the lower affluent segment with household liquid assets from $250,000 to $500,000.

Near-affluent households: Fourteen million near-affluent households in the U.S. with between $100,000 and $250,000, saw investable assets decline by $79 billion between 2015 and 2016, to $2.6 trillion.

Boomers have most wealth: Approximately 70 percent of the wealth and affluent market is comprised of Americans age 52 or older who have at least $100,000 in investable assets.

By generation: