Preferred Bank is a regional bank headquartered in downtown Los Angeles. This Diamond Bar branch is situated next to U.S. Tae Kwon Do Center and anchors a small shopping plaza. Commercial and personal accounts are welcome. A night depository can be found to the right of the entrance. Inside, there's walk-up teller service. Additionally, a sit-down consultation area accommodates more in-depth transactions. First-time visitors should note that there is no ATM at this location. Also, this branch of Preferred Bank is closed on both Saturday and Sunday.