The three most expensive local insurers were Allstate, Nationwide, and MetLife, based on our analysis. With an average annual rate of $989, the three national insurance companies cost about 23% more than the 11-company composite average from the study. Compared to the cheapest three, Allstate, Nationwide, and MetLife were roughly $346 more expensive each year for our two drivers' basic liability insurance policies.
To decide which companies were the best rated, we decided to take a look at which ones received the least complaints relative to their business size. Using data from the North Carolina Department of Insurance, we calculated a complaint index that compares the number of complaints to the number premiums in dollars. Below is a table ranking the insurance companies in North Carolina by the lowest index numbers (best) to highest (worst) complaint index. If the index is less than one, the insurer is better than the average, and if it is greater than one, it is worse than the average. For example, if the company’s complaint ratio is 1.15, the company has a 15% higher share of complaints compared to its market share.