New Hampshire is the cheapest state to own a car, thanks to its low insurance premiums and the fact that it does not charge a sales tax. Despite relatively high fuel costs compared to the rest of the country, New Hampshire still manages to keep the long-term costs of vehicle ownership low.
Wyoming, Indiana and Mississippi have the highest annual fuel costs. Wyoming tops the list at $2,742.78, which is attributed to its higher annual mileage. The state's drivers travel around 20,000 miles each year -- significantly more than the U.S. average of 14,050 miles.