NC is no doubt cheaper for insurance. Where I am at is rated in the top 10 for worst drivers in the United States (according to a recent study).32, two kids, married. I pay $46/mo for full coverage through USAA here. That's with 2 other cars on the policy as well though, one full, one liability only (my '03 Beater Corolla). I've also got a couple of speeding tickets in there, though I don't know how long it takes those to expire. The last one was in 2012 I think.
That being said, I suspect that's why my rates aren't even better.