Routing Numbers for Gnb Bank 7390... [2026 Updated]

The routing number for Gnb Bank is 73905064.

Gnb Bank is located at this address: 529 G Ave, Grundy Center, Iowa.

In case of mail delivery, this is the full address you should use:

Gnb Bank
529 G Ave
Grundy Center
Iowa
50638-0000

To contact Gnb Bank by phone, call: (319) 824-5431

Additional Routing Numbers for Gnb Bank

Bank Name:	Gnb Bank
Routing Number:	73921970
Address:	529 G Ave
City:	Grundy Center
State:	Iowa
Zip Code:	50638-0000
Phone Number:	(319) 824-5431

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This page has the contact information and routing numbers for Gnb Bank.

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Gnb Bank

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Routing Numbers General Information

Routing number is a 9 digit number given to a bank by the ABA (American Bankers Association) in order to recognize the bank for which payment is being sent to.

Routing numbers are often called ABA numbers, Check routing numbers, or Routing transit numbers (RTN).

Routing numbers change from bank to bank and from one bank location to another, there are also different routing numbers for different transactions.

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