Become a Mainstreet Member Today!

Mainstreet is proud to serve more than 60,000 in all 50 states. Most live and work right here in the Kansas City area. But if you live long-distance and have local family ties, give us a call. 


Who Can Join?

Geographic Eligibility:

  • Membership is open to any person living or working in the greater Kansas City Metropolitan Area, made up of the following counties:

Leavenworth, Wyandotte, Johnson, Douglas, Miami, Franklin, and Linn.


Platte, Clinton, Caldwell, Clay, Ray, Jackson, Lafayette, Cass, and Bates.

Other Eligibility:

  • Membership is open to organizations or businesses located within the counties listed above. Mainstreet works with more than 100 Select Employee Groups to provide credit union services as an employee benefit.
  • Membership is also open to family members of current Mainstreet members.

Join Now

Open your membership with a Share Saving Account at your nearest branch with a deposit of $5 or more. That's It!

Once your membership is established, you are free to apply for loans and open other deposit and investment accounts the same day.*

Join Today!


Show employees you care about their financial health.

It's important to help your employees manage their money better - Mainstreet can assist with that. We offer money-saving products and financial education tailored to fit their needs.

Call Mainstreet at 913-599-1010, ext 259 to learn more from our Business Development Specialist, or send an email to

* Membership subject to approval.