* Country: Car ownership rates among teenagers differ significantly between countries. Developed nations with widespread car ownership will have higher percentages than developing nations with limited access to vehicles.
* Region within a country: Rural areas often have higher rates of teenage car ownership than urban areas due to greater reliance on personal transportation.
* Socioeconomic status: Students from wealthier families are far more likely to have access to a car than those from less affluent families.
* Age: Older high school students (juniors and seniors) are more likely to have cars than younger students (freshmen and sophomores).
* Driving laws: The legal driving age and licensing requirements influence the number of students who can legally operate a vehicle.
To get an accurate number, you'd need to conduct a large-scale survey specific to a defined population (e.g., high school students in a particular state or region). General statistics on car ownership for the entire teenage population are available, but they don't directly translate to high school students specifically.