Cornerstone Credit Union membership information. See if you qualify to join the credit union.

Cornerstone opened in 1931. The credit union is located in Iowa.

Membership Eligibility

The Credit Union has reported the qualifying fields of membership include:

Our primary focus is the Retail trade.
If you are affiliated with any retail organization in the Polk County and surrounding county areas, you may be eligible to join our credit union. Please call us for more details at 515-274-2343.