Bank Routing Number

Iowa State Bank and Trust Company Routing Number

The primary ABA routing number (RTN) for Iowa State Bank and Trust Company, Fairfield, IA is shown below.

Primary ABA / RTN

073901880

Verify before you send money. This is the bank's primary registered routing number, taken from the FFIEC National Information Center institution record (last refreshed here on October 8, 2026). Banks often use a different routing number for wire transfers than for ACH, and large banks vary it by region; always confirm the correct number on a check or with your bank before initiating a transfer.

What is an ABA routing number?

An ABA routing number, also called a routing transit number (RTN), is a 9-digit code that identifies a U.S. financial institution in the payment system. It tells ACH transfers, Fedwire payments, and paper checks which bank to route money to. The format was created by the American Bankers Association in 1910 and is still the backbone of U.S. domestic payments.

What is the difference between a routing number and an account number?

Your routing number identifies the bank; your account number identifies your specific account at that bank. On a paper check, the routing number is the 9-digit number in the bottom-left, and the account number is to its right.

What is the Iowa State Bank and Trust Company routing number?

The Iowa State Bank and Trust Company routing number is 073901880. It is the primary ABA routing transit number registered to Iowa State Bank and Trust Company, headquartered in Fairfield, IA. A bank can hold more than one routing number, so this is the one on record for the institution, not necessarily the one printed on every check. The number comes from the FFIEC National Information Center institution record, last refreshed here on October 8, 2026.

What is the Iowa State Bank and Trust Company wire routing number?

This page lists 073901880, the primary routing number registered to Iowa State Bank and Trust Company. The record does not say whether the bank uses the same number for wire transfers, and many banks use a separate routing number for domestic wires. Confirm the wire routing number with Iowa State Bank and Trust Company before sending a wire.

Is ABA number 073901880 the routing number for Iowa State Bank and Trust Company?

Yes. ABA number 073901880 is the primary routing number registered to Iowa State Bank and Trust Company. Check it against the routing number on a check or in your online banking before sending an ACH payment, because a bank can use different numbers by region or product.

Which bank uses routing number 073901880?

Routing number 073901880 belongs to Iowa State Bank and Trust Company, headquartered in Fairfield, IA. It is the bank's primary ABA routing number (FDIC certificate 14413).

Routing numbers of similar-size institutions in Iowa

Bank, Fairfield, IA: Libertyville Savings Bank: 073914220
Bank, Glenwood, IA: Glenwood State Bank: 073902342
Bank, New Albin, IA: New Albin Savings Bank: 073909015
Bank, Carroll, IA: Commercial Savings Bank: 073919571
Bank, Lansing, IA: Kerndt Brothers Savings Bank: 073904696
Bank, Dubuque, IA: Premier Bank: 073922652
Bank, Spencer, IA: Community State Bank: 073917887
Bank, Osceola, IA: American State Bank: 073922403

All routing numbers in Iowa

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Regulator records: FDIC BankFind (cert 14413) · FFIEC NIC profile (RSSD 651541)