I think that stat means 64% of Americans don't rent.

Homeowner is not the right term for most of that 64%, because most have a mortgage balance, which when subtracted from their < $1,000 in savings, makes the picture even uglier, and makes most of their future financial well-being dependent and correlated with their local real estate market.

Edit: The stat actually means 64% of homes are occupied by their owner. But "owner" is still misleading, as the article linked to above says:

"However, homeowner equity has fallen steadily since World War II and is now less than 50% of the value of homes on average."