Willows is a city located in Glenn County, in the Sacramento Valley region of Northern California. It is the county seat of Glenn County. The population was 6,293 at the 2020 census. Willows has a Hot-summer Mediterranean climate according to the Köppen climate classification system.
Thunderhill Raceway Park is a well-known motorsports complex located in Willows, which is in Glenn County, northern California. It is a popular destination for motorsports enthusiasts and hosts a variety of racing events, driving schools, and track days.