The national average cost of an auto insurance premium in May 2009 is $1,837 according to CPI. CPI indicated the estimated the average cost for auto insurance nationwide for 2007 was $1,600 and rates have continued to increase in 2009.

You can review the CarInsurance.com Premium Index - CPI at any time to learn more about average premiums.

While CPI doesn't currently report a breakdown of the nationwide statistics on the average price of motor vehicle insurance by age groups, we can tell you that typically teenager drivers and drivers under 25 years of age have some of the highest auto insurance premiums. Young drivers have proven to be high-risk drivers for insurance companies due to the high rate of accidents and their inexperience to operate a vehicle.

Male drivers under the age of 25 typically have the highest premiums. Females normally cost a bit less to insure because of statistics showing they are not as aggressive behind the wheel. If you are under 25 and married t is likely that your rates would be a little lower than a single driver of the same age.

Where you live in the United States will also affect your rates. Many state insurance regulators (Departments of Insurance office) have comparison charts of rates that consumers can download. Often this data includes rates for different areas of the state as well as for different age groups. If you were interested in finding out the average cost for auto insurance for 18 to 25 year old drivers in your particular state, we would recommend contacting your state's Department of Insurance. Alternatively, f you have 6 minutes, get an online car insurance quote at CarInsurance.com and see what the cost is if an 18-25 year old.

You can compare this month's average premiums in every state (including 18 to 25 year olds), compared to the national average cost of car insurance.

To see if new statistical data has been gathered that shows the average cost of auto insurance for different age groups nationwide you may want to review CPI. CPI will soon include age graphing, gender segmenting, number of drivers, and average for the amount of vehicles on a quote.