FDIC Releases National Survey of Unbanked and Underbanked Editorial BoardPosted on November 6, 2014 On October 29, the FDIC released the results of the 2013 FDIC National Survey of Unbanked and Underbanked Households. The survey indicates that the proportion of unbanked households declined from 8.2% in 2011 to 7.7% in 2013. Release. Survey.