Bank of Ontario Routing Number

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 Bank of Ontario routing number?

The Bank of Ontario routing number is 075907743. It is the primary ABA routing transit number registered to Bank of Ontario, headquartered in Ontario, WI. 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 Bank of Ontario wire routing number?

This page lists 075907743, the primary routing number registered to Bank of Ontario. 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 Bank of Ontario before sending a wire.

Is ABA number 075907743 the routing number for Bank of Ontario?

Yes. ABA number 075907743 is the primary routing number registered to Bank of Ontario. 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 075907743?

Routing number 075907743 belongs to Bank of Ontario, headquartered in Ontario, WI. It is the bank's primary ABA routing number (FDIC certificate 21085).

Routing numbers of similar-size institutions in Wisconsin

Bank, Milwaukee, WI

Associated Trust Company, N.A.: 271250087

Bank, Hustisford, WI

Hustisford State Bank: 075905664

Bank, Holmen, WI

Park Bank, N.A.: 091805609

Bank, Mayville, WI

Mayville Savings Bank: 275971142

Bank, Independence, WI

Independence State Bank: 091805683

Credit union, Weston, WI

Brokaw Credit Union: 275977159

Credit union, Fond du Lac, WI

Fond Du Lac Credit Union: 275977450

Credit union, La Crosse, WI

Gundersen Credit Union: 291881177

All routing numbers in Wisconsin