South Dakota law sets a floor on the auto coverage you have to carry, and it runs a little higher than the rock-bottom minimum some states allow. If you've just been in a crash, these numbers decide how much money is actually on the table, both from your own policy and the other driver's. Here's what the statutes require, what each coverage pays for, and where the legal minimum can leave you exposed.
The 25/50/25 liability minimum
Every vehicle registered in South Dakota has to carry liability insurance of at least $25,000 for bodily injury to one person, $50,000 for total bodily injury per accident, and $25,000 for property damage. That's the "25/50/25" you'll see quoted, and it comes directly from SDCL 32-35-70.1
The three numbers cap different things, so it helps to pull them apart. The first $25,000 is the most the policy pays for any single person's injuries. The $50,000 is the ceiling for everyone hurt in the same crash combined, however many people that turns out to be. The last $25,000 covers damage to the other driver's car and other property. These are liability limits. They pay for harm you cause to other people, not your own injuries and not your own vehicle.
If two people in the other car are badly hurt and the at-fault driver carries only the minimum, that $50,000 per-accident cap gets split between them, and it disappears fast against real hospital bills.
Driving uninsured is a criminal offense
South Dakota treats proof of insurance as an ongoing obligation, not a one-time box to check. SDCL 32-35-6 makes it unlawful to operate a vehicle on a public road without maintaining continuous financial responsibility.2 Get caught driving without the required coverage and you're looking at a misdemeanor charge, and the state can suspend your license and registration and require you to file an SR-22 certificate proving coverage before it will reinstate you.2
Uninsured motorist coverage is mandatory here
South Dakota is one of the states that requires uninsured motorist (UM) coverage on top of liability. Under SDCL 58-11-9, every auto liability policy issued in the state must include UM coverage, which pays for your injuries when you're hit by a driver who has no insurance or who flees the scene in a hit-and-run.3 The required UM limits equal your own bodily injury liability limits, so a driver carrying the 25/50 minimum for liability also carries 25/50 in UM protection.3
The statute writes in one exemption: government-owned vehicles don't have to carry UM coverage.3
This matters more than it sounds. When the person who hit you has nothing, your UM coverage is the only pot of money between you and absorbing the loss yourself.
Underinsured motorist coverage and the no-stacking rule
UM handles the driver with no insurance. Underinsured motorist (UIM) coverage handles the driver who has some, just not enough. SDCL 58-11-9.4 requires UIM coverage to be made available with your liability policy, and it caps the mandatory amount at $100,000 per person and $300,000 per accident unless you ask for higher limits.4
South Dakota also has a rule that catches people off guard after a crash: you can't stack UM and UIM. SDCL 58-11-9.7 bars adding your uninsured and underinsured limits together for a single accident.5 The one exception is when two different at-fault drivers are involved, one uninsured and one underinsured; in that case you may recover under both coverages.5
No PIP and no required medical payments coverage
South Dakota runs on an at-fault (tort) system. There's no personal injury protection (PIP) requirement and no no-fault scheme, so the driver who caused the crash, through their liability insurer, is the one responsible for paying.6
Medical payments coverage (MedPay), which pays medical and funeral expenses for you and your passengers regardless of who was at fault, is sold only as an optional add-on. The South Dakota Division of Insurance lists it among the coverages you can choose to buy, not among the ones the law requires.6 Given the distances to a hospital across much of the state and how routine winter crashes are on I-90 and the rural highways, MedPay is often worth the modest premium even though nothing forces you to buy it.
Why the legal minimum often isn't enough
Carrying 25/50/25 keeps you legal. It doesn't guarantee you're protected. One ambulance ride, an ER workup, and a couple of days in the hospital can pass $25,000 without much trouble, and if the driver who hit you carries only the state minimum, that per-person cap is the hard limit on what their insurer pays no matter how severe your injuries are.
South Dakota's fault rule raises the stakes further. The state doesn't use the familiar 50%/51% comparative-negligence bar that most states apply. Under SDCL 20-9-2, you can recover only if your own negligence was "slight" in comparison with the other driver's, and your damages are then reduced in proportion to your share of the fault.7 Whether your negligence counts as "slight" is a qualitative call for the jury, so a claim can be barred even when your share of the blame sits well below half. Solid UM and UIM limits on your own policy are the practical safety net when the other driver is uninsured, underinsured, or when fault is genuinely in dispute.
The deadlines that decide whether coverage matters
Coverage only helps if you act inside the legal window. In South Dakota you generally have three years from the date of the crash to file a personal injury lawsuit, under SDCL 15-2-14(3).8 Property damage runs on a separate and longer clock: claims for damage to your vehicle get six years under SDCL 15-2-13(4).9 If the injured person is a minor, the three-year injury deadline doesn't start until they turn 18, per SDCL 15-2-22.10
When you're building a claim, the police crash report is usually the first document an insurer asks for, and the South Dakota Department of Public Safety's Office of Accident Records is the agency that keeps it.11 You can pull a report through our South Dakota crash reports page. If your car is worth less on paper after the wreck even though the repair was done right, that loss is worth chasing separately; see how diminished value claims work in South Dakota.
What to actually carry
The 25/50/25 minimum is the price of driving legally in South Dakota. Whether it leaves you whole after a serious crash is a different question, and for most people the honest answer is no. Higher liability limits protect your own assets when you're the one at fault, and higher UM and UIM limits protect you when the other driver can't. If you've already been hit and you're unsure whether the available coverage will cover what you've lost, it's worth talking to a South Dakota attorney; our legal directory is a place to start.
This article is general information, not legal advice.
Sources
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South Dakota Codified Laws § 32-35-70 (minimum motor vehicle liability limits). https://sdlegislature.gov/Statutes/32-35-70
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South Dakota Codified Laws § 32-35-6 (continuous financial responsibility required). https://sdlegislature.gov/Statutes/32-35-6
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South Dakota Codified Laws § 58-11-9 (uninsured motorist coverage required; government-vehicle exemption). https://sdlegislature.gov/Statutes/58-11-9
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South Dakota Codified Laws § 58-11-9.4 (underinsured motorist coverage; $100,000/$300,000 cap). https://sdlegislature.gov/Statutes/58-11-9.4
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South Dakota Codified Laws § 58-11-9.7 (uninsured and underinsured limits may not be stacked; exception). https://sdlegislature.gov/Statutes/58-11-9.7
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South Dakota Division of Insurance, Automobile Insurance consumer guidance. https://dlr.sd.gov/insurance/general_guidance/auto.aspx
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South Dakota Codified Laws § 20-9-2 (slight/gross comparative negligence). https://sdlegislature.gov/Statutes/20-9-2
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South Dakota Codified Laws § 15-2-14 (three-year personal injury statute of limitations). https://sdlegislature.gov/Statutes/15-2-14
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South Dakota Codified Laws § 15-2-13 (six-year limitation for injury to property). https://sdlegislature.gov/Statutes/15-2-13
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South Dakota Codified Laws § 15-2-22 (statute of limitations tolled for minors). https://sdlegislature.gov/Statutes/15-2-22
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South Dakota Department of Public Safety, Office of Accident Records. https://dps.sd.gov/records/accident-records