The 2025 Formula Pro USA Western Series is the sixth season of the championship for Formula Regional and Formula 4 cars established in the West Coast of the United States. The championship is promoted and organized by Exclusive Racing and Exclusive Auctions, and is run under the same sporting regulations as the FIA-sanctioned Formula Regional Americas Championship and Formula 4 United States Championship.
It began in March, with the championship spanning six weekends until November.
Teams and drivers.
Drivers are able to enter either the FPUSA-3 or the FPUSA-4 class, with the former using a Ligier JS F3 car and the latter a Ligier JS-F4 car. All cars are powered by Honda and use Avon tires.
Race calendar.
The 2025 calendar will be held over twelve races spanning across six weekends. The series will race at the same four circuits as the previous year. 
Championship standings.
Points are awarded as follows: