Official App
Free – Google Play
Get it

Join Now

Accent photo

5 Reasons to Join CCU

  1. Affordable Loans
  2. 24/7 Online & Mobile Banking with mobile check deposit
  3. FREE Checking & Bill Pay
  4. Low-interest Rewards Credit Card
  5. Four convenient locations & ATM service

Apply for Membership Now

     Open a Deposit Account
Open a Loan Account

Check Application Status

More About CCU

Who We Are

We believe you'll appreciate the credit union difference, offering personalized financial solutions and rock solid advice. In addition to providing better rates, lower fees and affordable services to help you achieve a financially stable lifestyle, at Cornerstone Credit Union, we are committed to supporting programs and not-for-profit organizations that make a positive impact in the communities we serve.

Your Security

Your financial security is important and we take several precautions to ensure your digital information is secure. To access your accounts, you must first be enrolled in Online Banking. You must enter your Logon ID and a Security Code to gain access. As a security precaution, we store your Security Code in our database in an encrypted format that even we cannot decode 

Who Can Join

Applying is easy by clicking here. You are eligible for membership if you live or work in Boone, Bureau, Carroll, JoDaviess, Lee, Ogle, Stephenson, Whiteside, or Winnebago counties in Illinois; or Green or Rock counties in Wisconsin. Membership is also open to family members of current Cornerstone CU members.

Prefer In-Person Service?

Stop by a Cornerstone CU Service Center and open a primary savings account with a minimum deposit of $25. As long as you maintain this minimum deposit, you'll be a member-owner for life.

Let's Get Started

We will need:

  1. A valid [unexpired] state-issued driver's license or state-issued identification card.
  2. If your address is different from one shown on your Driver’s License or State-ID Card, proof of address is required (a utility bill showing your current address is acceptable).
  3. Any two [2] of the following forms of valid [unexpired] identification:
    • U.S. Government Issued Passport
    • U.S. Government Issued Military Card
    • Social Security Card
    • Vehicle Registration Card
    • Credit Card
    • Health Insurance Card 
  4. $25 minimum deposit into your Savings account to become a member

Take a moment to visit our site for more solutions, services and advantages. Let us know if you require more information or assistance. 

Once you are a member, enroll in our Online Banking and Mobile Banking for convenience.

Cornerstone Credit Union
1-800-711-3277  •  Routing: 271184425  •  NMLS #743907

facebook logo Cornerstone Credit Union YouTube Channel  Download on the App Store Get it on Google Playdownload adobe reader

Co-op logoTrustage logoESI logoEHL logoNCUA logo
Your deposits are federally insured up to $250,000 by the National Credit Union Administration (NCUA), with an added safety net of private insurance (Excess Share Insurance/ESI) for an additional $250,000. This is the highest combination of federal and private insurance available to consumers.