The Lumpy's Diner diner is located at the 5891 Lone Tree Way, Antioch CA. It serves Diner, Burgers, American and burgers. Lumpy's Diner is children friedly, has a parking lot and wheelchair accessible. The avarage rating of this diner rated by 325 reviewers is 4.2. For more deatils and orders call Lumpy's Diner on (925) 778-5867 or visit thier website.