Join us!

Becoming a member is easy

If you live, work, worship, or go to school in the state of Washington or in Bonner or Kootenai counties, Idaho, you are eligible to join STCU.

Become a member

Start a new application.


Note: You must be at least 18
years old to apply
for online membership.

Finish an application
already in progress.

Returning user

Important information about procedures for opening a new account

To help the government fight the funding of terrorism and money laundering activities, federal law requires all financial institutions to obtain, verify and record information that identifies each person who opens an account. What this means for you: When you open an account, we will ask for your name, address, date of birth, and other information that will allow us to identify you. We may also ask to see, or request a copy of your driver's license or other identifying documents.

Alternative solution

Don't want to apply online? Print the STCU PDF membership application [PDF 421Kb]
(This form requires Adobe® Reader®. If you do not have Adobe® Reader®, you may download the free reader here. ).

Complete the requested information and bring it with you to one of our convenient branch locations.