Home › Top 5 Pizza restaurant in Walnut, California Find best Pizza restaurant in Walnut, California, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Pieology Pizzeria - Walnut (CA 91789) US, Walnut, CA 91789505 N Grand Ave New York Pizzeria - Walnut (CA 91789) US, Walnut, CA 91789364 N Lemon Ave Papa Johns Pizza - Walnut (CA 91789) US, Walnut, CA 9178918734 Amar Rd The Curry Pizza Company #6 US, Walnut, CA 91789376 S Lemon Ave Barro’s Pizza - Walnut (CA 91789) US, Walnut, CA 9178921000 Golden Springs Dr