Suffolk County N/b Address
P O Box 9000
Riverhead, NY 11901
Suffolk County N/b Phone Number

Suffolk County N/b of New York - Routing Number

21405464 The routing number for Suffolk County N/b in New York is used on Suffolk County N/b checks and for direct deposits and wire transfers.

Suffolk County N/b is a banking institution located in Riverhead, NY. The routing number for Suffolk County N/b is 21405464.

How to use the Suffolk County N/b Routing Number

Routing number on sample check

Suffolk County N/b's routing number is the eight or nine-digit number found on the bottom left hand side of Suffolk County N/b 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 Suffolk County N/b 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 Suffolk County N/b Bank Account Number, the Suffolk County N/b Routing Number is the same for all Suffolk County N/b accounts. If you have both your checking and savings accounts with Suffolk County N/b, for example, they will both use the same routing number, 21405464.