The cost of your auto insurance will depend on your age, type of vehicle, value of vehicle and whether you need to have full coverage auto insurance or just liability auto insurance.
If it's a new car that you still owe on then you'll need to have full coverage auto insurance which will cost more per month than just plain liability auto insurance.
Other things that will factor into the cost of your auto insurance are your driving record and whether you have points on your driving license or prior DUI's.
I find though for me that State Farm Auto Insurance is the cheapest Auto Insurance company for me.
Best thing to do is shop around and go to different auto insurance websites and get an online auto insurance quote for the vehicle you'll be insuring with them.