US Government website Data.gov provides a lot of interesting data.
For example, FDIC (Federal Deposit Insurance Corp) shows some statistics for failed banks between 2000 and 2017.
I am posting below totals of failures by Year and State.
Most of recent 16 years bank failures happened in 2009-2010 in Georgia and Florida.
But Massachusetts, Hawaii, New Hampshire, South Dakota, West Virginia and Wyoming had only 1 failed bank (in each state) during the last 16 years.