History
Affinity First Federal Credit Union was organized and chartered by seven Trinity Hospital employees on April 23, 1959 as Triniservice Federal Credit Union. On November 5, 2004 Triniservice Federal Credit Union's name was changed to Affinity First Federal Credit Union. The field of membership was expanded to include the counties of Mountrail, McLean, McHenry, Renville, Bottineau and Ward.