County Route J1 is a county road in San Benito and Fresno Counties. The route begins in Paicines, San Benito County, at Route 25. Between Paicines and Panoche Valley, J1 is known as Panoche Road. Its north-south portion between Panoche Valley and Fresno County is called Little Panoche Road. In Fresno County, the route then intersects with Interstate 5 and terminates in Mendota at State Route 33 (California) near State Route 180 (California) in the Central Valley. Panoche Road lies within the corridor of an unbuilt Route 180 segment. No current plan exists to extend Route 180 westward from Mendota westward past Interstate 5 and into San Benito County.