Fairfield County Bank 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 Fairfield County Bank routing number?

The Fairfield County Bank routing number is 221172270. It is the primary ABA routing transit number registered to Fairfield County Bank, headquartered in Ridgefield, CT. 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 Fairfield County Bank wire routing number?

This page lists 221172270, the primary routing number registered to Fairfield County 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 Fairfield County Bank before sending a wire.

Is ABA number 221172270 the routing number for Fairfield County Bank?

Yes. ABA number 221172270 is the primary routing number registered to Fairfield County 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 221172270?

Routing number 221172270 belongs to Fairfield County Bank, headquartered in Ridgefield, CT. It is the bank's primary ABA routing number (FDIC certificate 18213).

Routing numbers of similar-size institutions in Connecticut

Bank, Thomaston, CT

Thomaston Savings Bank: 211174259

Bank, Newtown, CT

Newtown Savings Bank: 221172296

Bank, Norwich, CT

Chelsea Groton Bank: 211173357

Bank, Danbury, CT

Ives Bank: 221172238

Credit union, Waterford, CT

Charter Oak Federal Credit Union: 211176998

Bank, Stamford, CT

First County Bank: 221172212

Bank, Guilford, CT

Ascend Bank: 211170208

Credit union, Stratford, CT

Sikorsky Financial Credit Union, Inc.: 221180806

All routing numbers in Connecticut