Auto-Owners offers the cheapest car insurance for 40-year-olds. Minimum coverage averages $67 per month, and full coverage averages $142. GEICO matches Auto-Owners on minimum coverage but costs more for full coverage at $144 per month.
GEICO operates in all 50 states and has nationwide claims processes, so it works for drivers who relocate. Auto-Owners has the lowest rates overall but sells through independent agents in a limited number of states. State Farm and Travelers price similarly and provide local agent support. Progressive offers usage-based discounts through its Snapshot program.









