PrimeSource Credit Union PrimeSource Credit Union Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Finance & Insurance >> Financial Services >> Banks and Financial Institutions PrimeSource Credit Union PO Box 48275Spokane, WA 99228 | View on Google Maps (509) 838-6157 Visit Site Member Since: 2013 Send a message to: PrimeSource Credit Union Your Name: Your Email: Subject: Message: (Date: 12/4/2024)