In a study of households with at least one vehicle, Experian Automotive, a part of global information services company Experian, found that households with three or more cars are the single largest group among American car owners.
Vehicle ownership in the US is an average 2.28 vehicles per household. Experian Automotive found that single-vehicle households represents nearly 34% of the market, and that two-vehicle households present 31%. However, households with three or more vehicles maintain the single largest category, at nearly 35%.
The number of vehicles per household varies across states and regions, with Washington, D.C., having the highest single-car percentage (62.5%), and South Dakota the highest percentage of households with five or more vehicles (12.79%).
The study also found that as the number of vehicles per household increases, the types of vehicles shift. Households with only domestic vehicles come out on top among two-vehicle households, constituting nearly 40% of the category.
When moving up to three- and four-vehicle households, Americans tend to prefer a blend of domestic and import vehicles, at 49.8% and 59.87%, respectively. Households having only new vehicles also lead the two-vehicle category, at 43.5%.
As the number of vehicles increases, so does the blend between new and used vehicles, with 60% of three-vehicle households and more than 70% of four-vehicle households having a mix of the two.
Other findings in the study include:
The most common pairing of vehicles in American households with two to four cars is a full-sized pickup truck and a standard, mid-range vehicle.
Of households with two or more vehicles in which one is an SUV, nearly 25% also own a pickup truck.
The percentage of one-vehicle households for those earning $250,000 or more annually is 35%—about the same as households with incomes of $25,000 to $34,999