Bank Routing Number

Northwest Bank Routing Number

The primary ABA routing number (RTN) for Northwest Bank, Spencer, IA is shown below.

Primary ABA / RTN

273970682

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 Northwest Bank routing number?

The Northwest Bank routing number is 273970682. It is the primary ABA routing transit number registered to Northwest Bank, headquartered in Spencer, 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 Northwest Bank wire routing number?

This page lists 273970682, the primary routing number registered to Northwest Bank. 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 Northwest Bank before sending a wire.

Is ABA number 273970682 the routing number for Northwest Bank?

Yes. ABA number 273970682 is the primary routing number registered to Northwest Bank. 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 273970682?

Routing number 273970682 belongs to Northwest Bank, headquartered in Spencer, IA. It is the bank's primary ABA routing number (FDIC certificate 32647).

Routing numbers of similar-size institutions in Iowa

Bank, Spencer, IA: Farmers Trust and Savings Bank: 073918857
Bank, Spencer, IA: Community State Bank: 073917887
Bank, Spencer, IA: State Bank: 073921954
Bank, Cedar Rapids, IA: Cedar Rapids Bank and Trust Company: 073922801
Bank, Bettendorf, IA: Quad City Bank and Trust Company: 073902232
Bank, Dubuque, IA: Fidelity Bank & Trust: 073914398
Credit union, Dubuque, IA: Dupaco Community Credit Union: 273974581
Bank, Ida Grove, IA: United Bank of Iowa: 073921433

All routing numbers in Iowa

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Regulator records: FDIC BankFind (cert 32647) · FFIEC NIC profile (RSSD 1387605)