Mercury Insurance is best known as a low-cost personal auto and homeowners writer distributed almost entirely through independent agents, with a dominant position in California and operations in roughly 11 states. Founded in 1961 by George Joseph and headquartered in Brea, California, Mercury also writes condo, renters, landlord, umbrella, mechanical protection, business owners, and business auto coverage. The company carries an A (Excellent) financial strength rating from AM Best. You can report a claim any hour of the day through Mercury’s automated digital claims experience or by phone, then track repairs and reach your adjuster online. Billing, autopay enrollment, ID cards, and policy changes are all handled in your Mercury online account.