
Banner Bank routing number
Complete guide to Banner Bank routing numbers for ACH transfers, wire transfers, and direct deposit setup across Washington, Oregon, California, and Idaho.
Last verified June 2026
Banner Bank routing number
Use the ACH number for direct deposits and ACH transfers, the wire number for domestic wires, and the SWIFT code for international wires.
More about Banner Bank
Banner Bank's ACH routing number is 323371076, used for direct deposits, ACH transfers, and domestic wires. SWIFT/BIC: BNNEUS66.
This is Banner Bank's most commonly used routing number and works for the majority of Banner Bank accounts, especially:
- Accounts opened directly with Banner Bank after 2000
- Accounts in Western Washington
- New accounts opened at any Banner Bank branch
- Direct deposit and ACH transfers for most customers
Additional Banner Bank Routing Numbers by Region:
Banner Bank maintains 35 different routing numbers in total. Here are the most common routing numbers by state and region:
Washington State:
- 323371076 (Primary - most Western Washington accounts)
- 125108191 (Spokane area - former AmericanWest Bank accounts)
- 125107765 (Various Washington locations)
- 125107037 (Various Washington locations)
- 125105741 (Various Washington locations)
- 123204110 (Various Washington locations)
- 123202293 (Various Washington locations)
- 121142779 (Various Washington locations)
Oregon:
- 123206817 (Oregon accounts - former banks)
- 323371076 (Newer Oregon accounts)
California:
- 323371076 (Most California accounts)
- Routing numbers may vary for accounts from AltaPacific Bank acquisition (2019)
Idaho:
- 323371076 (Most Idaho accounts)
- Routing numbers may vary for accounts from Seaport Citizens' Bank acquisition (1999)
How to Find Your Specific Routing Number:
Because Banner Bank has grown through numerous acquisitions, your routing number depends on:
- Where you originally opened your account
- When you opened your account
- Which bank you originally banked with (if acquired by Banner)
To find your exact routing number:
- Check the bottom left corner of your checks
- Log into Banner Online Banking and view account details
- Call Banner Bank customer service at 1-800-527-6435
- Visit any Banner Bank branch
Why Does Banner Bank Have Multiple Routing Numbers?
Banner Bank's roots date back to 1890 when the National Building Loan & Trust Association was founded in Walla Walla, Washington. Over its 135-year history, the bank underwent several transformations, becoming First Federal Savings Bank of Washington in 1988, First Savings Bank of Washington in 1991, and finally Banner Bank in October 2000.
Since 2000, Banner Bank has acquired over 15 financial institutions, including:
- Seaport Citizens' Bank (Idaho, 1999)
- Towne Bank (Washington, 2000)
- Siuslaw Bank (Oregon, 2015)
- AmericanWest Bank (Washington, 2018)
- Skagit Bank (Washington, 2018)
- AltaPacific Bank (California, 2019)
- Islanders Bank (Washington, 2021)
Many accounts from these acquired banks retain their original routing numbers for system continuity, which is why Banner Bank maintains 35 different routing numbers rather than consolidating to a single number.
Get it right the first time
A wrong number can bounce a transfer or send it into limbo. Two minutes here saves a week of waiting.
- Using the wire number for an ACH transfer (or vice-versa)
- Transposing a digit; always copy, don’t retype
- Forgetting the SWIFT code on incoming international wires
- Routing numbers are public — your account number is what to protect
- Only share account details over channels you initiated
- Verify new payees by phone before the first transfer
- Watch for invoice-swap scams that change banking details
How to find your account number
The 9-digit number in the lower-left, before your account number.
Sign in, open the account, and view account & routing details.
Printed near your account number in the statement header.
1-800-527-6435, or ask at any Banner Bank branch.
FAQs
Common questions about ACH and wires through Banner Bank
Why does Banner Bank have so many different routing numbers?
Banner Bank has 35 different routing numbers due to its extensive acquisition history. Founded in 1890 in Walla Walla, Washington, Banner Bank grew significantly through strategic acquisitions of other banks across the Pacific Northwest and Northern California. Since 1999, Banner Bank has acquired over 15 financial institutions, including AmericanWest Bank in Spokane, Skagit Bank in Burlington, AltaPacific Bank in Santa Rosa, and numerous other community banks. When banks are acquired, the acquiring institution often maintains the original routing numbers for existing accounts to avoid disruption to customers' automatic payments, direct deposits, and bill pay arrangements. This means your routing number depends on which bank you originally opened your account with and when.
How do I know which Banner Bank routing number to use?
The easiest way to find your correct Banner Bank routing number is to check the bottom left corner of your personal checks, where the nine-digit routing number is printed. You can also log into Banner Online Banking, select your account, and view account details to see your routing number. If you opened your account directly with Banner Bank (especially after 2000), you likely use routing number 323371076, which is Banner Bank's primary routing number. However, if your account originated with an acquired bank like AmericanWest (Spokane area), you may use a different routing number such as 125108191. When in doubt, call Banner Bank at 1-800-527-6435 for verification.
Can I use any Banner Bank routing number for my account?
No, you must use the specific routing number assigned to your account. Using an incorrect routing number can cause payment delays, rejected transactions, or funds sent to the wrong account. Even though Banner Bank maintains 35 different routing numbers, each account is associated with one specific routing number based on where and when it was opened. Always verify your routing number by checking your checks, online banking, or contacting Banner Bank customer service before setting up direct deposits, automatic payments, or wire transfers.
What's the difference between ACH and wire routing numbers at Banner Bank?
Banner Bank uses the same routing number for both ACH transfers and wire transfers for each individual account. For example, if your account uses routing number 323371076 for ACH transactions, you'll also use 323371076 for wire transfers. However, wire transfers require additional information and fees. Domestic wire transfers typically process same-day but require calling Banner Bank or using Business Online Banking for business customers. ACH transfers take 1-3 business days but are often free. Banner Bank also offers international wire services with SWIFT code BNNEUS66 for business customers through their Treasury Management division.
Can I use Banner Bank routing numbers for international transfers?
Banner Bank has SWIFT code BNNEUS66 for international wire transfers, primarily available through their Business Online Banking platform and Treasury Management services. International wire services are designed for business clients engaged in importing goods or services, with options to send funds in U.S. dollars or foreign currency. For personal international transfers, Banner Bank's capabilities may be limited, and you'll need to contact a branch or call 1-800-527-6435 to verify if international wire services are available for your account type. Most international wires require visiting a branch or working with Banner's international services team due to the complexity of cross-border payments.
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