Just 4.5% of 132.5m U.S. households were considered “unbanked” in 2021, data from the Federal Deposit Insurance Corporation (FDIC) show. That rate, which represents about 5.9m U.S. households, is almost a full percentage point lower than when the survey was last conducted in 2019, and is the lowest level recorded since the FDIC began conducting the survey in 2009.