1st Security Bk Address
Po Box 290
Mackinaw, IL 61755
1st Security Bk Phone Number
309-359-3961

1st Security Bk of Illinois - Routing Number

71109655 The routing number for 1st Security Bk in Illinois is used on 1st Security Bk checks and for direct deposits and wire transfers.

1st Security Bk is a banking institution located in Mackinaw, IL. The routing number for 1st Security Bk is 71109655.

How to use the 1st Security Bk Routing Number

Routing number on sample check

1st Security Bk's routing number is the eight or nine-digit number found on the bottom left hand side of 1st Security Bk checks, next to your checking account number and check number.

In the sample check on the left, the routing number is circled in red. Your checks may have a slightly different layout.

Your routing number is used like a bank's address, to ensure that financial transactions (like checks and direct deposits) get sent to the correct banking institution. You will need to know the 1st Security Bk Routing Number when setting up direct deposit with your employer, receiving direct-deposit benefits or tax refunds from the U.S. Government, or requesting a direct bank wire payment to your bank account.

Unlike your 1st Security Bk Bank Account Number, the 1st Security Bk Routing Number is the same for all 1st Security Bk accounts. If you have both your checking and savings accounts with 1st Security Bk, for example, they will both use the same routing number, 71109655.