Online Applications

It's easy to open your Advantage One account!  Credit union membership is open  to persons who work, worship, or attend school within the following Michigan counties: 

  • Clinton
  • Eaton
  • Genesee
  • Hillsdale
  • Ingham
  • Jackson
  • Lapeer
  • Lenewee
  • Livingston
  • Macomb
  • Monroe
  • Oakland
  • Shiawassee
  • St. Clair
  • Washtenaw
  • Wayne


Relatives of AOCU members are eligible to join if they are a spouse, domestic partner, child, sibling, parent, grandparent, or grandchild of a current member. This includes stepchildren, stepparents, step siblings, and adopted children.

Open your account online or call us at 734-676-7000.

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