Bank Routing Number

Clear Lake Bank and Trust Company Routing Number

The primary ABA routing number (RTN) for Clear Lake Bank and Trust Company, Clear Lake, IA is shown below.

Primary ABA / RTN

073904036

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 Clear Lake Bank and Trust Company routing number?

The Clear Lake Bank and Trust Company routing number is 073904036. It is the primary ABA routing transit number registered to Clear Lake Bank and Trust Company, headquartered in Clear Lake, 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 Clear Lake Bank and Trust Company wire routing number?

This page lists 073904036, the primary routing number registered to Clear Lake 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 Clear Lake Bank and Trust Company before sending a wire.

Is ABA number 073904036 the routing number for Clear Lake Bank and Trust Company?

Yes. ABA number 073904036 is the primary routing number registered to Clear Lake 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 073904036?

Routing number 073904036 belongs to Clear Lake Bank and Trust Company, headquartered in Clear Lake, IA. It is the bank's primary ABA routing number (FDIC certificate 15690).

Routing numbers of similar-size institutions in Iowa

Bank, Council Bluffs, IA: Midstates Bank, N.A.: 073903383
Bank, Pella, IA: Marion County State Bank: 073913674
Bank, Webster City, IA: First State Bank: 073921718
Bank, Sioux City, IA: Liberty National Bank: 073922869
Bank, Slater, IA: South Story Bank & Trust: 073922238
Bank, Grundy Center, IA: GNB Bank: 073905064
Bank, Spencer, IA: Farmers Trust and Savings Bank: 073918857
Bank, Manchester, IA: Farmers & Merchants Savings Bank: 073903244

All routing numbers in Iowa

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Regulator records: FDIC BankFind (cert 15690) · FFIEC NIC profile (RSSD 865544)