Superior Credit Union is a not-for-profit, member-owned financial cooperative. Unlike profit-driven banks and finance companies, our excess earnings are returned to members in the form of friendly service, low interest rates on loans, high yield savings and investment accounts, and low or no fee convenience services.Today, Superior has grown into a full-service financial institution serving more than 90,000 members. Anyone who lives, works, worships, or attends school inAllen, Auglaize, Brown, Butler, Clermont, Defiance, Hamilton, Hancock, Hardin, Henry, Logan, Lucas, Marion, Mercer, ...