Updated April 2026
What Is Uninsured Motorist Coverage Insurance?
How Much Does Uninsured Motorist Coverage Insurance Cost?
- State uninsured driver rate — Mississippi (29% uninsured) has much higher UM premiums than Maine (6% uninsured)
- Coverage limits chosen — $25,000/$50,000 UMBI costs less than $100,000/$300,000, but higher limits are recommended for seniors due to elevated medical costs
- Whether you bundle UMBI and UMPD or purchase separately — some states don't offer UMPD at all
- Your ZIP code — urban areas with higher hit-and-run rates and uninsured percentages cost more
- Stacking vs. non-stacking — stacked UM coverage (combining limits across multiple vehicles) costs 15–40% more but provides greater protection for multi-car senior households
- Carrier — rates for identical UM coverage can vary by $5–$12/month between insurers serving senior drivers
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