What county is Radiator Springs located in during Pixar's Cars?

Radiator Springs is located in Carburetor County in Pixar's Cars.

The county name appears on the fictional road signs and maps associated with the film's setting. Radiator Springs is a small desert community on or near the historic Route 66, and Carburetor County reinforces the movie's playful decision to give automotive names to places and characters.

The town's identity is central to Lightning McQueen's story. After damaging the road while escaping from police, Lightning is ordered to repair it before leaving. His forced stay introduces him to residents including Doc Hudson, Sally Carrera, Mater, and Ramone, and gradually changes his attitude toward fame and racing.

Carburetor County is not a real county in Arizona or elsewhere in the United States. The location is fictional even though Pixar drew inspiration from real Route 66 communities and landscapes. This distinction matters because some viewers search for Radiator Springs as an actual town, while the film deliberately blends several real inspirations into one invented place.