The 2019 Formula 4 United States Championship season was the fourth season of the United States Formula 4 Championship, a motor racing series regulated according to FIA Formula 4 regulations and sanctioned by SCCA Pro Racing, the professional racing division of the Sports Car Club of America.
All teams were American-registered.
All races will be held on permanent road courses in the United States. The series schedule was announced on 7 December 2018.
Points were awarded as follows: