The main customer service number for Cathay Bank is 1-800-278-6742.  Cathay Bank customer service representatives can be reached Monday thru Friday 6:00 am – 6:00 pm Pacific Time.

Current customers of Cathay Bank can obtain automated information 24 hours a day, 7 days a week by calling the main customer service number during the hours when the line is not staffed.

New or existing Cathay Bank customers can also reach the bank via a secure contact form found on the bank web site located at

Written requests regarding credit disputes or loan questions can be made to:

Cathay Bank
Loan Servicing Department EL-3-A
9650 Flair Drive, El Monte, CA 91731

To make Cathay Bank loan payments, customers can mail their payments to

Cathay Bank
Attn: Loan Servicing Department
9650 Flair Drive
El Monte, CA 91731


Cathay Bank
PO Box 80426
City of Industry, CA 91716-8426

Or make the payment at any one of the local Cathay Bank branches.

Cathay Bank is a California chartered bank that operates over 50 branches in eight states.  The bank currently operates thirty-two branches in California, nine branches in New York State, three in the Chicago, Illinois area, three in Washington State, two in Texas, one in Massachusetts, one in Nevada, one in New Jersey, one in Hong Kong, and a representative office in Taipei and in Shanghai.  Cathay Bank is a subsidiary of Cathay General Bancorp

Cathay Bank’s headquarters is located at:

777 North Broadway Street
Los Angeles, CA 90012

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