Security National Bank Address
601 Pierce St
Sioux City, IA 51101
Security National Bank Phone Number
712-277-6699

Security National Bank of Iowa - Routing Number

Old Routing Number: 73906047
73900085
The routing number for Security National Bank in Iowa is used on Security National Bank checks and for direct deposits and wire transfers.

Security National Bank is a banking institution located in Sioux City, IA. The routing number for Security National Bank is 73906047.


How to use the Security National Bank Routing Number

Routing number on sample check

Security National Bank's routing number is the eight or nine-digit number found on the bottom left hand side of Security National Bank 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 Security National Bank 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 Security National Bank Bank Account Number, the Security National Bank Routing Number is the same for all Security National Bank accounts. If you have both your checking and savings accounts with Security National Bank, for example, they will both use the same routing number, 73906047.