Nationwide, the average cost of auto insurance jumped 50% between 1989 and 2005, but average per-car spending on coverage rose just 13% in California, according to the report. Other states where price hikes were held down, relatively speaking, included New Jersey with a 20% increase in that time period; Hawaii, 25%; New Hampshire, 30%; and Pennsylvania, 31%. States with the steepest rate changes were Nebraska, where average per-car costs surged 118% to $620 from $285 between 1989 and 2005, and South Dakota, where costs jumped 107% to about $565 from $274. Other high-increase states include: Montana, 104%; Wyoming, 101%; and Kentucky, 100%. Wyoming does not control rates, and the other four states require companies file notice of rate changes but don't require state preapproval of those changes.
Auto Insurance, Insurance
States with toughest auto-insurance rules see lowest rate hikes