Mailing Addresses for Ameren Illinois

 
Please include your bill stub with your check or money order. If you do not have your bill stub, write your 10-digit account number or service address on your payment to ensure your account is credited.
      
Mail all payments to the address on your bill or: Photo of a mailbox
Ameren Illinois
PO Box 88034
Chicago, IL 60680-1034
  
Allow at least five days for your payment to reach us.
    
    
Send correspondence to:
Ameren Illinois
300 Liberty St.
Peoria, IL 61602
      
      
Save a Stamp!
Sign up for Paperless Billing, our safe, convenient and fast electronic billing option. With eBill you'll receive your Ameren Illinois bill in an email, which will include an option to pay your bill online.
    
    
If you have comments or suggestions relating to this website, contact the Ameren.com Webmaster.
Follow Us Follow Us