fin.codes2026 reference dataAPI
bank

Ion Bank routing numbers

Ion Bank's routing number is listed as 211 174 178 — use it for direct deposit, ACH, and domestic wires. (cross-checked against public directories — confirm before you send)

Cross-checkedFDIC BankFind Suitechecked June 28, 2026
⑆ Routing numbersIon Bank
Direct deposit, ACH & wiresCross-checked

Direct deposit, payroll, ACH transfers, and domestic wires

211 174 178

Cross-checked against public routing directories, not the bank itself. Always confirm with the bank before you send money.

Type
bank
Headquarters
Naugatuck, CT
FDIC certificate
18198
FDIC reported assets
$2.8B
All numbers

Every Ion Bank routing number

Lookup tool
1 of 1
Find it yourself

Find your Ion Bank number in your account

Find your Ion Bank routing number

Where to look: a check, online banking, the mobile app.

  1. Look at the bottom-left of a Ion Bank check — the first 9 digits are your routing number.
  2. Or sign in to online or mobile banking and open your account or routing details.
  3. Or call the number on the back of your card and ask for the ABA routing number for your account.
  4. Confirm the number with the bank before using it for direct deposit or a transfer.
Before you send

Check these before you send money

  • Confirm the bank name on the transfer matches Ion Bank.
  • Match the number to the transfer type — ACH and direct deposit use one number, domestic wires another.
  • For wires, double-check the recipient's name and address too.
  • If instructions arrived by email, confirm them on Ion Bank's official site or phone line before sending.
  • No one should ever need your password or full card number to confirm a routing number — that's a scam.
FAQ

Ion Bank routing number FAQ

What is Ion Bank's routing number?

Ion Bank's routing number is listed as 211 174 178 — use it for direct deposit, ACH, and domestic wires. (cross-checked against public directories — confirm before you send) The 9-digit routing number identifies the bank on a transfer; your account number identifies you.

How do I find my Ion Bank routing number?

Your routing number is the first 9 digits in the bottom-left of a Ion Bank check, or in your online and mobile banking under account or routing details. If anyone asks for your online-banking password or full card number to "verify" a routing number, it's a scam — a routing number alone is public.

Where is Ion Bank headquartered?

Ion Bank is a bank headquartered in Naugatuck, CT.

How does fin.codes check Ion Bank's routing numbers?

Every number passes the standard ABA checksum. 1 is cross-checked against multiple public routing directories. fin.codes is an independent reference, not a bank — always confirm transfer details with Ion Bank before sending money.

Is fin.codes affiliated with Ion Bank?

No. fin.codes is an independent reference and is not affiliated with, authorized by, or endorsed by Ion Bank.

Browse

Keep exploring

Banks IAlphabetical directoryBanks in CTBy headquarters stateRouting lookupSearch any 9-digit number
360Achieve FinancialAlbrightAmerica S First Network
Sourced & dated financial-code reference

Independent reference. Not affiliated with, endorsed by, or authorized by any financial institution. Confirm routing or SWIFT details directly with your bank before sending money.