This news may be depressing to some, but facts are facts. New Jersey came in as the most expensive state to insure a car, with an average premium of $1,182 for drivers. New York came in a close second, costing consumers $1,161 for auto insurance. On the other end of the spectrum, Iowa and Maine are providing the least expensive car insurance premiums. In Iowa, auto consumers are getting a bargain with $596 insurance premiums. Maine is only slightly more expensive, with $621 auto insurance premiums. Nationwide, it is estimated that the average auto insurance premium is $817