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Is a Cosigner Responsible for Car Insurance
Last Updated on October 29, 2025 by Andy Walker

 

If you live in South Carolina and recently noticed your car insurance premiums rising, you’re not alone. Many drivers across the state ask the same question: why is car insurance so expensive in South Carolina? The short answer is that high accident rates, severe weather, uninsured drivers, and rising repair costs are key reasons behind South Carolina’s expensive car insurance.

According to the National Association of Insurance Commissioners (NAIC), South Carolina drivers pay an average of $1,700 per year for full coverage, which is nearly 20% higher than the national average. While factors like your driving history, vehicle type, and location influence your personal rate, statewide issues such as frequent hurricanes, rural road accidents, and insurance fraud play a major role in keeping costs high.

In this detailed guide, we’ll explore all the major reasons South Carolina car insurance costs more, break down how rates compare to neighboring states, and show you practical ways to save money. Whether you’re a resident of Charleston, Columbia, or Greenville, understanding these factors can help you make smarter decisions about your coverage and find more affordable options.

High Number of Uninsured Drivers

One major reason car insurance is so expensive in South Carolina is the high number of uninsured drivers on the road. According to the Insurance Research Council (IRC), about 10% of South Carolina drivers have no insurance at all.

When uninsured drivers cause accidents, insured drivers end up paying the price through higher premiums. Insurers spread the risk of these unpaid claims across all policyholders, increasing rates for everyone.

How This Impacts Costs

  • More uninsured drivers lead to higher claim payouts for insurers.
  • Companies raise premiums to offset financial losses.
  • Drivers are often required to carry Uninsured Motorist Coverage, adding to total policy costs.
StateUninsured Driver RateImpact on Average Premiums
South Carolina10.9%High
Georgia12.4%Moderate
North Carolina7.4%Lower
Florida15.9%Very High

Frequent Accidents and Fatalities

South Carolina consistently ranks among the top 10 states for traffic fatalities in the U.S. The National Highway Traffic Safety Administration (NHTSA) reports that in 2023, South Carolina had 1,115 traffic deaths, which is significantly higher than the national average per capita.

Why This Matters

High accident rates mean more insurance claims, which lead to higher costs for everyone. Rural roads, distracted driving, and speeding are among the top causes.

Top Causes of Accidents in South Carolina

  • Distracted driving (cell phone use)
  • Speeding on rural highways
  • Drunk driving incidents
  • Poor visibility on back roads

Insurers factor this data into their risk calculations, making South Carolina one of the most expensive states for full coverage insurance in the Southeast.

Severe Weather and Natural Disasters

South Carolina’s coastal location makes it vulnerable to hurricanes, flooding, and hailstorms. These natural disasters cause major damage to vehicles every year, leading to thousands of comprehensive insurance claims.

Examples of Weather-Related Costs

  • Hurricane Ian (2022) caused over $1.8 billion in damages across South Carolina.
  • Flooding and hailstorms contribute to hundreds of vehicle claims annually.

Comprehensive insurance, which covers weather-related damage, is essential for drivers in the state  but it also increases overall costs.

Weather TypeCommon DamageCovered Under
HurricanesFlooded or destroyed vehiclesComprehensive Coverage
HailstormsDented panels and windshieldsComprehensive Coverage
TornadoesTotal vehicle lossComprehensive Coverage

Even if you don’t live directly on the coast, inland storms and flash floods can cause enough damage to raise rates statewide.

High Repair and Medical Costs

Auto repair prices and medical treatment costs have skyrocketed nationwide, but South Carolina’s smaller market size and rising inflation have made things worse.

When insurers pay more to fix or replace damaged vehicles and treat injured drivers, they recover those expenses through premium increases.

Examples of Rising Costs

  • Average auto repair costs rose by 17% in the past two years (Bureau of Labor Statistics).
  • Medical costs after car accidents rose nearly 12% in the same period.
  • Vehicles with advanced technology and sensors cost more to repair after even minor crashes.

If your car is equipped with driver-assistance technology, parking sensors, or cameras, it can cost thousands more to repair than older vehicles, directly impacting your rate.

Urban Congestion and Higher Population Density

Cities like Charleston, Columbia, and Greenville are growing rapidly, leading to more congestion, higher accident risks, and increased insurance costs.

Urban Areas with the Highest Premiums

CityAverage Annual Full Coverage Cost
Charleston$1,950
Columbia$1,820
Greenville$1,710
Florence$1,650

As traffic volume rises, the likelihood of claims also increases. Insurers price policies higher in densely populated areas where accidents, theft, and vandalism are more common.

High Rate of Drunk Driving

Drunk driving remains a serious issue in South Carolina. According to the Centers for Disease Control and Prevention (CDC), nearly one-third of all fatal crashes in the state involve alcohol-impaired drivers.

Impact on Insurance

  • Higher DUI-related crashes increase claim payouts.
  • DUI convictions result in massive personal rate increases (often +60% or more).
  • Some insurers refuse to cover drivers with a DUI history, forcing them into high-risk insurance.

Drivers with a DUI in South Carolina can expect to pay $2,500–$3,000 per year for full coverage, compared to the statewide average of $1,700.

Insurance Fraud and Legal Claims

Insurance fraud and staged accidents are growing problems in the U.S., and South Carolina has seen a rise in false injury claims and fake accident reports.

When insurers pay fraudulent claims, they compensate for the loss by increasing premiums for everyone else.

Additionally, South Carolina’s legal system allows for high settlement payouts, which further raise insurance costs. Even minor accidents can lead to costly lawsuits, especially if injuries are claimed.

State Minimum Requirements for Coverage

South Carolina law requires drivers to carry both Liability and Uninsured Motorist Coverage. The mandatory minimums are higher than in many states, which automatically increases base premiums.

Coverage TypeState Minimum Requirement
Bodily Injury Liability$25,000 per person / $50,000 per accident
Property Damage Liability$25,000 per accident
Uninsured Motorist CoverageEqual to liability minimums

While these minimums protect you legally, most drivers opt for higher limits or full coverage, which significantly raises annual costs.

Rural Roads and Poor Infrastructure

More than half of South Carolina’s roadways are rural, where crashes often result in more severe injuries and total vehicle losses. Poor lighting, lack of median barriers, and limited emergency response times contribute to higher accident severity.

The Federal Highway Administration (FHWA) has ranked South Carolina among the states with the worst rural road conditions, increasing overall insurance risks.

Why This Affects Rates

  • Higher likelihood of severe damage in rural crashes
  • Increased medical costs per claim
  • Higher claim payouts from insurers

These regional factors make insurance pricing in South Carolina more complex than in many neighboring states.

High Vehicle Theft and Vandalism Rates

Vehicle thefts in South Carolina are above the national average. According to the National Insurance Crime Bureau (NICB), more than 10,000 vehicles were stolen in South Carolina last year.

Most Commonly Stolen Vehicles

Vehicle ModelYear Range
Ford F-1502006–2014
Chevrolet Silverado2005–2015
Honda Accord2008–2012
Toyota Camry2010–2015

Comprehensive coverage protects against theft, but since theft risk is high statewide, insurers charge more for that protection.

Rising Cost of Litigation and Settlements

South Carolina is known for having plaintiff-friendly courts, where accident victims often receive large settlements. This legal climate increases insurance costs for companies operating in the state.

For instance, a 2023 analysis by the American Tort Reform Foundation ranked South Carolina among the top 10 “judicial hellholes” for insurers  meaning claim costs and lawsuit settlements are higher than average.

High Medical Claims from PIP Coverage

While South Carolina is not a no-fault state, insurers still pay significant medical costs under MedPay or liability coverage. Many claims involve hospital stays and rehabilitation, which are expensive.

Average medical claim costs have risen by 30% since 2018, according to the Insurance Information Institute (III). With higher payouts, premiums naturally rise to balance the books.

Inflation and Post-Pandemic Market Changes

Like much of the country, South Carolina has been impacted by inflation in vehicle repair, healthcare, and replacement parts. Labor shortages and supply chain disruptions have pushed costs even higher.

Contributing Factors

  • Supply chain delays for car parts
  • Increased labor costs for repairs
  • More expensive medical treatments
  • Higher new vehicle prices

All these economic factors make it more expensive for insurers to operate, which translates directly into higher rates for drivers.

Comparison: South Carolina vs Neighboring States

StateAverage Annual Premium (Full Coverage)Rank (National)
South Carolina$1,70012th most expensive
North Carolina$1,15046th
Georgia$1,80010th
Florida$2,5003rd

As you can see, South Carolina ranks among the highest in the Southeast, largely due to its combination of risk factors and weather-related losses.

How to Lower Your Car Insurance in South Carolina

Even though rates are high, there are effective ways to save money on car insurance in South Carolina.

Practical Tips

  • Compare multiple quotes: Use trusted comparison sites like Alias Insurance to find the lowest rates.
  • Increase your deductible: Higher deductibles can lower your monthly premium.
  • Bundle policies: Combine car and home insurance for multi-policy discounts.
  • Take a defensive driving course: Certified courses can reduce premiums by 5–10%.
  • Maintain a clean driving record: Avoid speeding tickets and DUIs.
  • Ask for discounts: Many insurers offer safe driver, low-mileage, and good student discounts.
  • Improve your credit score: Insurers in South Carolina use credit history to determine rates.

By applying these methods, drivers can save up to 20% per year on premiums without sacrificing coverage quality.

FAQs

Why is car insurance higher in South Carolina than North Carolina?

North Carolina uses a state-regulated rate system that caps insurance prices, while South Carolina allows insurers to set rates based on risk factors such as accidents, weather, and claims frequency.

Is South Carolina a no-fault insurance state?

No. South Carolina follows an at-fault system, meaning the driver responsible for an accident must pay for damages and injuries through their insurance.

How can I get cheap car insurance in South Carolina?

Maintain a clean driving record, shop around, bundle policies, and consider higher deductibles. Comparison tools like Alias Insurance help find cheaper policies.

Do I need uninsured motorist coverage in South Carolina?

Yes, it’s required by law and must match your liability coverage limits to protect you if an uninsured driver causes an accident.

What city has the most expensive car insurance in South Carolina?

Charleston has the highest premiums due to its coastal risks, dense population, and higher rate of claims.

Conclusion

Car insurance in South Carolina is expensive for several reasons from high accident rates and uninsured drivers to weather risks and rising medical costs. While you can’t control every factor, you can take smart steps to reduce your personal costs.

By comparing multiple providers, maintaining good driving habits, and using available discounts, you can protect your vehicle without breaking your budget.

To start saving today, visit Alias Insurance is a trusted platform where South Carolina drivers can compare free quotes from top-rated insurers and find the best coverage at the most affordable price.


Andy Walker

Andy Walker is a freelance content writer who specializes in writing for insurance and finance related niches. He has years of experience in this field and has written extensively on a variety of topics. Andy's work is always highly polished and well-researched, ensuring that his clients are always happy with the results.