South Dakota Auto Insurance

South Dakota is an at-fault (tort) state. Drivers must carry at least 25/50/25 in coverage, and the average full-coverage premium is $2,020 a year, 31% below the national average of $2,922. This guide covers what South Dakota requires, what drivers pay, the rules on fault, uninsured drivers, penalties, teen drivers and phone use, and how to pay less.

South Dakota car insurance at a glance

Minimum coverage	25/50/25
Fault system	At-fault (tort)
Average full coverage	$2,020 a year ($168 a month), 31% below the national average of $2,922
Uninsured drivers	9.4% (2023), the 43rd highest rate of 51
Filing after serious violations	SR-22

Minimum car insurance requirements in South Dakota

South Dakota requires $25,000 bodily injury liability per person, $50,000 per accident, and $25,000 property damage liability (South Dakota Codified Laws §32-35-70).

Uninsured and underinsured motorist

Required. Underinsured motorist coverage must equal the bodily injury limits on your policy.

The minimums are a legal floor, not a recommendation. Property damage limits in particular don't go far when a new car can cost more than the limit to replace, and anything above your limits is your personal responsibility. See how limits and deductibles work and every type of coverage explained.

How much car insurance costs in South Dakota

The average full-coverage premium in South Dakota is $2,020 a year, 31% below the national average of $2,922. That makes South Dakota the 7th cheapest of 49 (48 states plus D.C.; Alaska and Hawaii aren't in the data) (Experian, "Car Insurance Average Costs by State," published September 9, 2026; full coverage, 12 months to August 2026).

Within South Dakota, prices still vary a lot by ZIP code, driving record and car, and 9.4% of drivers on South Dakota roads were uninsured in 2023, so the coverage you choose matters as much as the premium.

Your own price depends on your ZIP code, age, driving record, car and coverage. Try our car insurance calculator with South Dakota preselected for a personal estimate, and see what determines your car insurance cost.

Fault rules after an accident in South Dakota

South Dakota uses a slight/gross negligence rule: you can recover only if your own negligence was slight compared with the other driver's. (Matthiesen, Wickert & Lehrer, "Contributory Negligence/Comparative Fault Laws in All 50 States," updated June 10, 2026)

Uninsured drivers in South Dakota

An estimated 9.4% of South Dakota drivers were uninsured in 2023, the 43rd highest rate among the 50 states and D.C. (Insurance Research Council, uninsured motorist estimates for 2023, via Insurance Information Institute "Facts + Statistics: Uninsured motorists"). Uninsured and underinsured motorist coverage protects you when one of them hits you. See coverage types.

Proof of insurance in South Dakota

If an officer stops you for a traffic violation or you're in a reportable crash, you must show written evidence of financial responsibility; an electronic ID card from your insurer counts. If you're cited but were insured at the time, the charge is dismissed when you show proof to the court. (South Dakota Codified Laws §§32-35-114, 32-35-116 and 32-35-117)

Penalties for driving without insurance in South Dakota

Failing to maintain financial responsibility is a Class 2 misdemeanor. A conviction also leads to suspension of your driver's license for 30 days to one year. (South Dakota Codified Laws §32-35-113; South Dakota Department of Public Safety)

A conviction for driving uninsured also follows you into your next policy. In CarInsurance.com's rate analysis, it raised the average full-coverage premium in South Dakota from $2,280 to $2,787 a year, an increase of 22% (CarInsurance.com, "Penalty for driving without insurance in every state," updated March 24, 2026; rate analysis).

Beyond the penalties, driving uninsured leaves you personally liable for any damage you cause. See what happens if you drive without car insurance.

SR-22 in South Dakota

After a conviction, South Dakota requires an SR-22 filed by your insurer for three years from the conviction date. (South Dakota Department of Public Safety)

Teen drivers in South Dakota

South Dakota uses graduated driver licensing (Insurance Institute for Highway Safety, "Graduated licensing laws" table):

• Learner's permit: from age 14; held for at least 9 months (6 months with driver education); supervised driving required: 50 hours, 10 of which must be at night and 10 of which must be during inclement weather.
• Intermediate (provisional) license: from age 14, 9 months (14, 6 months with driver education). Night driving restriction: 10 p.m.-6 a.m. Passenger restriction: first 6 months—no passengers; thereafter—no more than 1 passenger younger than 18.
• When restrictions lift: night, age 16; passengers, licensed for 6 months or age 16, whichever occurs first (min. age: 15, 6 mos.).

Adding a teen is usually the biggest single increase in a family's premium. Keeping them on the family policy, a good-student discount and a safe, modest car help most.

Phone and texting laws for South Dakota drivers

• Hand-held calls banned: no.
• Law specifically bans holding any electronic device: no.
• Texting and other use banned: specifically applies to social media; does not apply to reading, selecting or entering number or name for purpose of making call and using device for the call.
• Hands-free use allowed: device allowed if voice-operated or without use of either hand except to activate or deactivate feature or function.
• Total device ban for novice drivers: yes, learner's permit and intermediate license holders.

A distracted-driving ticket can count against your record and your premium. (Insurance Institute for Highway Safety, "Electronic device laws" table)

How to pay less for car insurance in South Dakota

• Compare several insurers on identical limits and deductibles. Prices for the same driver vary widely.
• Protect your driving record. A single speeding ticket or at-fault crash can keep your price higher for three to five years.
• Ask what discounts you qualify for: bundling home and auto, insuring several cars, a clean record, a student's grades, anti-theft devices, or paying the term up front.
• Match coverage to the car: on an older, paid-off car, collision and comprehensive may cost more than they could pay out.
• Never let coverage lapse. Besides the penalties, a gap raises the price of your next policy.

See how to compare car insurance quotes, or get quotes for your ZIP code.

Where to get help

For questions about a policy, a claim or an insurer's conduct, contact the South Dakota Division of Insurance. It handles consumer questions and complaints about insurers in South Dakota.

Sources

• South Dakota Codified Laws §32-35-70
• South Dakota Division of Insurance; SDCL chapter 58-11
• Experian, "Car Insurance Average Costs by State," published September 9, 2026; full coverage, 12 months to August 2026
• Matthiesen, Wickert & Lehrer, "Contributory Negligence/Comparative Fault Laws in All 50 States," updated June 10, 2026
• Insurance Research Council, uninsured motorist estimates for 2023, via Insurance Information Institute "Facts + Statistics: Uninsured motorists"
• South Dakota Codified Laws §§32-35-114, 32-35-116 and 32-35-117
• South Dakota Codified Laws §32-35-113; South Dakota Department of Public Safety
• CarInsurance.com, "Penalty for driving without insurance in every state," updated March 24, 2026; rate analysis
• South Dakota Department of Public Safety
• Insurance Institute for Highway Safety, "Graduated licensing laws" table
• Insurance Institute for Highway Safety, "Electronic device laws" table

AutoInsuranceQuery editorial team. Last reviewed: September 29, 2026.