Washington Mutual Bank is located on 101 Western Ave in Petaluma. Washington Mutual Bank offers a number of products and services, which include Child Savings Accounts, Certificates of Deposit, CDs, Loans, Credit Union Accounts, IRAs, Teleloan, Vehicle, Free Checking, ATM, Savings Accounts, Insurance, Online Banking, Money Market Accounts, Keogh Accounts, No Service Charges, Residential Services, Senior Accounts, Residential, Adjustable Rates, Travelers Checks, Checking Accounts, Checking Accounts, ATMs, IRA Accounts, Commercial, Online Banking, Direct Deposit, Savings Accounts, Money Market Accounts, 401K, Commercial Services . Washington Mutual Bank can be reached by phone by calling (707) 763-4148 . Washington Mutual Bank has a single review on MojoPages.com, and it's a negative review.