One in Seven Drivers on the Road Has No Insurance. Here Is What Happens to Your Wallet When One of Them Hits You.

TL;DR

• About 14% of US drivers carry no insurance at all, and rising premiums are pushing that number higher
• If an uninsured driver causes a wreck, YOU pay your own medical bills, lost wages, and car repairs unless you have UM/UIM coverage
• Adding uninsured/underinsured motorist coverage costs roughly $20 to $50 per year and could save you $100,000 or more

Key Numbers at a Glance

Last verified: March 15, 2026

The Problem Nobody Talks About

Yesterday we broke down why most drivers carry too little liability coverage. Today is the scarier version of that story: what happens when the other driver carries no coverage at all.

About 28 million drivers on American roads have zero car insurance, according to the Insurance Research Council's most recent study. That is roughly one in every seven vehicles you pass on the highway. And the number is growing. As insurance premiums surge, with the national average up 22% since 2022, more drivers are quietly dropping their policies altogether.

Here is the part that should make you uncomfortable: if one of those 28 million drivers causes an accident with you, their insurance pays nothing. Because there is no insurance. The question becomes who pays your bills.

Without uninsured motorist coverage, the answer is you.

What You Actually Pay When an Uninsured Driver Hits You

The math gets brutal fast.

A moderate car accident with injuries typically runs $23,500 in emergency room costs alone, according to data from the Health Care Cost Institute. Add follow-up care, physical therapy, and lost wages, and the tab climbs to $50,000 to $80,000. Serious injuries involving surgery, hospitalization, or long-term disability routinely exceed $100,000 to $300,000, based on Insurance Information Institute claim data.

Your car is a separate problem. The average collision repair cost hit $4,721 in 2025, according to CCC Intelligent Solutions. Total your car, and you are looking at the full replacement value out of pocket.

Add it up: a serious accident with an uninsured driver could cost you $100,000 or more, none of it covered by anyone else's policy.

You can sue the uninsured driver. Good luck collecting. Most uninsured drivers are uninsured because they cannot afford insurance. They almost certainly cannot afford a six-figure judgment either. Courts call these "judgment-proof" defendants. You win the case and lose the money.

Where Uninsured Drivers Are Most Common

The uninsured rate is not evenly distributed. Some states are significantly worse than others.

Source: Insurance Research Council, 2024 report (based on 2022 data). Last verified: March 15, 2026.

If you live in Mississippi, there is roughly a 1 in 3 chance the driver next to you has no insurance. In Florida, Tennessee, and New Mexico, it is about 1 in 5.

Even in states with lower uninsured rates, like Maine (4.5%) and Massachusetts (3.5%), the risk is not zero. It takes exactly one uninsured driver to create a $100,000 problem.

The $30 Per Year Fix

Uninsured motorist bodily injury (UMBI) and underinsured motorist (UIM) coverage exist specifically for this scenario. Here is how they work:

• Uninsured motorist bodily injury (UMBI) pays your medical bills, lost wages, and pain and suffering when an uninsured driver injures you. Underinsured motorist (UIM) coverage, which is the related coverage for when the at-fault driver has insurance but not enough of it, works the same way.

• Uninsured motorist property damage (UMPD) covers damage to your car from an uninsured driver. Not available in all states, and sometimes has a deductible.

The cost is remarkably low. The National Association of Insurance Commissioners reports the average UM/UIM premium at roughly $30 to $50 per year. Some states run even cheaper. You are essentially paying the price of a single dinner out to protect against a potential $100,000 loss.

Twenty-one states plus DC already require some form of UM/UIM coverage. But in the remaining 29 states, it is optional, and many drivers decline it to save $3 to $5 per month on their premium.

That is a terrible trade.

Hit-and-Run: The Invisible Version of This Problem

Hit-and-run crashes add another dimension. The AAA Foundation for Traffic Safety reports approximately 737,000 hit-and-run crashes annually in the United States. In a hit-and-run, the other driver is effectively uninsured because they are gone.

Your UMBI coverage typically applies to hit-and-run accidents. Without it, you are fully on the hook for your own injuries and vehicle damage. Some states require the hit-and-run driver to be identified before UMPD kicks in, which means if they are never caught, your car damage is your problem.

How This Connects to Yesterday's Take

Yesterday we showed that most drivers carry $25,000 in liability coverage when a serious accident costs $100,000 or more. Today's story is the extreme version: what happens when the other driver carries $0.

The solution set is similar but the urgency is different. Liability coverage protects others from you. UM/UIM coverage protects you from others. You need both.

Here is the full picture:

What You Should Actually Do

1. Pull up your current policy declarations page. Look for "Uninsured Motorist" or "UM/UIM" coverage. If it says "rejected" or "waived," you have a gap. Time needed: 5 minutes. You will need your policy number and login credentials.

2. Call your insurer and add UM/UIM at 100/300 limits. Script: "I would like to add uninsured and underinsured motorist coverage at 100/300 limits. What is the additional premium?" Expected answer: $30 to $50 per year. If they quote significantly more, get a second quote.

3. Check if your state requires UM/UIM. The 21 states that mandate it (including Connecticut, Illinois, Kansas, Maine, Maryland, Minnesota, New York, North Carolina, North Dakota, Oregon, South Dakota, Vermont, Virginia, and DC) may already have it on your policy. But verify the limits match your liability limits.

4. If you live in a high-uninsured state (Mississippi, Florida, Tennessee, New Mexico, Michigan), treat this as urgent. Your odds of encountering an uninsured driver are 2x to 4x the national average.

5. Consider stacking if your state allows it. Stacking lets you combine UM/UIM limits across multiple vehicles on the same policy. If you have two cars with 100/300 UM coverage, stacking gives you 200/600 in coverage. Available in about 30 states.

Frequently Asked Questions

Does my health insurance cover me in a car accident? Yes, but with gaps. Health insurance covers medical treatment but does not cover lost wages, pain and suffering, or vehicle damage. It also comes with deductibles and copays. UM/UIM coverage fills those gaps and often provides broader compensation.

What if the hit-and-run driver is never identified? UMBI coverage typically still applies for your injuries. UMPD (property damage) rules vary by state. Some states require the driver to be identified before UMPD pays. Check your state's rules.

Can I sue an uninsured driver? Yes, but collecting is the problem. Most uninsured drivers lack assets to satisfy a judgment. Attorneys call them "judgment-proof." You might win the lawsuit and never see a dollar.

Is UM/UIM coverage the same as collision coverage? No. Collision covers damage to your car regardless of who is at fault. UM/UIM covers injuries AND vehicle damage specifically when the other driver is uninsured or underinsured. They serve different purposes. You ideally want both.

What does "underinsured" mean exactly? Underinsured motorist coverage, or UIM, kicks in when the at-fault driver HAS insurance but their limits are not high enough to cover your damages. Example: they carry 25/50 but your medical bills hit $80,000. Their insurance pays $25,000, and your UIM coverage pays the remaining $55,000 up to your policy limits.

How We Calculated This

The $100,000+ serious accident cost figure combines average emergency room costs ($23,500 per the Health Care Cost Institute), follow-up medical treatment ($15,000 to $40,000 typical range per the Insurance Information Institute), lost wages (median US weekly earnings of $1,165 times 8 to 12 weeks recovery, per Bureau of Labor Statistics 2025), and vehicle repair or replacement ($4,721 average repair per CCC Intelligent Solutions). Serious injuries involving surgery or hospitalization push the total well past $100,000. The UM/UIM cost estimate of $20 to $50 per year comes from NAIC aggregate premium data. Your specific cost depends on your state, driving record, vehicle, and chosen limits.

Sources

• Insurance Research Council (2024 Uninsured Motorists Report)
• Insurance Information Institute (Auto Insurance Facts and Statistics, 2025)
• Bankrate (Average Cost of Car Insurance, February 2026)
• Health Care Cost Institute (Emergency Room Cost Data, 2024)
• AAA Foundation for Traffic Safety (Hit-and-Run Crash Statistics, 2024)
• CCC Intelligent Solutions (Collision Repair Cost Trends, 2025)
• National Association of Insurance Commissioners (Auto Insurance Premium Data, 2025)
• American Property Casualty Insurers Association (State Insurance Requirements, 2025)
• Bureau of Labor Statistics (Median Weekly Earnings, Q4 2025)