The cheapest car insurance rate is $38 a month from Geico according to our research team's cost analysis of national average prices for minimum coverage. The top 10 cheapest car insurance companies are Nationwide, Geico, State Farm, Travelers, Progressive, AAA, Allstate, Chubb, Farmers and USAA.

State enrolled nurses also benefit from lower premiums, and groups such as magistrates and teachers also tend to pay less than average. Historically, women were deemed to be safer drivers than men and paid less for car insurance for women as a consequence.

Both Geico and Progressive offer cheap car insurance to drivers across the country. Geico's rates are typically lower overall, but Progressive tends to offer better prices to high-risk drivers. High-risk drivers are those with a recent DUI, at-fault accident or speeding ticket on their driving record.

Our cost estimates show that 35-year-old married drivers with good credit and clean driving records pay an average of $144 per month for car insurance. Paying around $100 per month for quality auto coverage is a good deal.