Walnut, CA

ZIP code 91789 is located in Walnut, California. This area is home to the popular shopping destination, The Shoppes at Chino Hills, featuring a variety of stores and restaurants. Additionally, the California State Polytechnic University, Pomona, is nearby, serving as a prominent educational institution in the area. With its mix of retail and academic offerings, ZIP code 91789 is a bustling and diverse community.