First Financial Northwest Bank

Contact Us

Need banking assistance? Call 866-372-1200. You won’t get a recording, but real live people, ready to help you. If you prefer, you can always send an email and we’ll get back to you as soon as possible.


Mailing address: First Financial Northwest Bank - PO Box 360, Renton, WA 98057


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Please use the following form to submit questions or comments to First Financial Northwest Bank. You may also contact Customer Service at 866-372-1200 during regular business hours. Thank you!

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Please remember, email is not secure. Please do not send sensitive information, i.e. your social security number, account numbers, or other account information, via email. This is also includes communication with the bank or 3rd party channels including Social Media postings on FFNWB linked channels.