When an Unvaccinated Dog Bites in South Dakota: Quarantine, Liability, and Rabies Rules
September 24, 2026
Every dog in South Dakota — whether a farm-raised herding breed or an apartment lap dog — belongs to the same species, Canis lupus familiaris, and that classification matters the moment a bite breaks skin. Unvaccinated dog bite laws in South Dakota treat the animal’s rabies status as the single biggest factor in what happens next, more so than breed, size, or even the severity of the wound.
You won’t find a dedicated dog bite statute on the books here. Instead, you’re dealing with a mix of common-law liability rules and public-health protocols that activate the second an animal control officer confirms the dog wasn’t current on its rabies shot. Knowing how those two tracks work together can change everything about your next 30 days.
What Happens If an Unvaccinated Dog Bites Someone in South Dakota
South Dakota does not have a Dog Bite Statute, but follows the One-Bite Rule. That common-law framework governs civil claims, but it runs on a separate track from the state’s public-health response to the bite itself.
On the public-health side, if an unvaccinated dog bites someone in South Dakota, the state will consider them a potential rabies carrier, and the dog may go into quarantine and/or face euthanasia. That single fact — vaccination status — decides whether your dog spends its confinement at home or in a shelter kennel, and it factors into nearly every consequence covered in this guide, from general dog bite liability to the quarantine rules discussed below.
Rabies exposure isn’t a hypothetical risk here. According to Expertise.com, the state logged 243 cases of rabid animals, with 25% being unvaccinated domestic pets, though the last documented instance of human rabies happened in 1970. That low human death toll exists largely because the state’s bite-response protocol treats every unvaccinated dog bite as a possible exposure until proven otherwise. For a step-by-step walkthrough of the entire process, see our companion guide on what happens if a dog bites someone in South Dakota.
Quarantine and Observation Requirements After a Dog Bite
South Dakota’s quarantine rules split into two distinct scenarios, and it helps to know which one applies to you. The first covers a dog that bites a person; the second covers a dog that gets bitten by a wild or suspect-rabid animal.
When your dog is the one that bit someone, a 10-day quarantine applies regardless of vaccination status. Where that quarantine happens, though, depends entirely on vaccination records. If the dog is currently vaccinated, this quarantine can often be completed at home under specific conditions set by animal control. An unvaccinated dog, however, faces a mandatory facility quarantine and potential euthanasia.
The second scenario flips the roles: your pet is the victim, bitten by a skunk, bat, or other suspect-rabid wildlife. According to Rabies Aware, the South Dakota Department of Health may serve the owner with a written notice requiring the animal to be confined for a period of not less than six months if the pet was unvaccinated at the time. If a dog or cat had been properly treated with an antirabic vaccine, confinement shall be for a period of not less than three months instead — a three-month difference that current pet vaccination laws in South Dakota can help you avoid entirely.
| Scenario | Vaccinated Dog | Unvaccinated Dog |
|---|---|---|
| Dog bites a person | 10-day quarantine, often completed at home | 10-day quarantine, mandatory facility confinement |
| Dog bitten by suspect-rabid wildlife | 3-month confinement minimum | 6-month confinement minimum |
Reporting a Dog Bite to Animal Control or Public Health
South Dakota law doesn’t leave reporting to personal discretion. According to SafeRabies, South Dakota Codified Law §40-7A-10 requires reporting bites within 24 hours. That clock starts the moment the bite happens, not when symptoms appear or someone decides medical care is needed.
Victims of dog bites or attacks must immediately report the incident to the animal control agency where the pet owner resides or where the incident happened. Owners carry the same reporting obligation, and skipping it can complicate both the public-health investigation and any later insurance claim tied to the incident.
If you’re on the receiving end of a bite, the practical steps look like this:
- Wash the wound thoroughly and seek medical care first.
- Report the bite to local animal control or law enforcement within 24 hours.
- Contact the South Dakota Department of Health at 605-773-3737 for questions on human exposure.
- Document the dog’s vaccination status, owner information, and any witnesses.
Pro Tip: Contact your homeowner’s or renter’s insurance provider promptly after the bite — delayed reporting can complicate or jeopardize your coverage.
Underreporting a bite can also undercut a later defense in a civil claim, since courts and insurers alike view prompt, transparent reporting as evidence of responsible ownership. For a deeper walkthrough of what animal control does after that report lands, revisit our guide on what happens if your dog bites someone in South Dakota.
Owner Civil Liability for Dog Bite Injuries
Civil liability in South Dakota runs on two separate legal theories, and understanding both matters if your dog was unvaccinated at the time of the bite. Neither theory automatically punishes an owner just because a bite happened — the victim has to prove something more.
According to DogBiteLaw.com, under a theory of scienter, a possessor of a domestic animal is generally shown to know or have reason to know of dangerous propensities abnormal to its class. Under negligence, by contrast, a cause of action by someone injured by a domestic animal can arise under a theory of scienter or negligence, and a negligence case does not require proof that the dog was vicious.
Failing to vaccinate your dog can itself become evidence of that negligence. Common examples cited in South Dakota bite cases include failing to properly leash or confine the dog and not having the dog properly vaccinated. Combine that with a violation of local leash laws in South Dakota, and an unvaccinated, unleashed dog gives a plaintiff two separate paths to prove fault instead of one.
Key Insight: Vaccination status alone won’t automatically create civil liability, but it strengthens a negligence claim considerably once combined with any other lapse in care, such as an unsecured yard or a violated leash ordinance.
Not every bite ends in liability, even for an unvaccinated dog. Dog owners are not liable for incidents where the injured person was trespassing or committing an intentional tort on the premises. Vaccination status still triggers the rabies-exposure protocol regardless, but it doesn’t override these traditional defenses in a civil claim.
Who Pays for Medical Care and Rabies PEP After a Bite
Cost allocation after a bite splits into two buckets: the immediate quarantine and testing bills, and the victim’s broader medical and rabies post-exposure prophylaxis (PEP) expenses.
On the animal-control side, the owner must pay the license and impound fees, as well as veterinarian costs if their pet is not previously vaccinated. A current rabies certificate can eliminate several of these costs outright, since a vaccinated dog is far less likely to need extended facility confinement or laboratory testing.
On the victim’s side, once civil liability is established, compensatory damages can range from present and future medical bills to physical therapy costs and rehabilitation expenses. Owners may also be liable for the victim’s lost wages, pain and suffering, and the victim’s family’s loss of consortium. Rabies PEP itself — a series of vaccine doses and, in some cases, immune globulin — typically gets billed to the victim’s health insurance first, with the dog owner’s civil liability coverage reimbursing those costs later if fault is proven.
Important Note: Rabies post-exposure treatment is a medical decision made by your physician, not by the dog’s owner or animal control. This section provides legal and procedural information only and isn’t a substitute for guidance from a licensed medical provider.
Fines and Criminal Penalties for Unvaccinated Dog Bites
South Dakota’s penalties for an unvaccinated dog bite come less from a single state statute and more from a patchwork of local ordinances layered on top of the state’s general dangerous-dog framework.
Pennington County’s ordinance offers a fairly typical example of how counties fill that gap. According to Pennington County, any animal that has bitten a person may be euthanized by order of the Health Officer, a physician, or a veterinarian from the Board of Health unless proof of a current rabies vaccination effected not less than 30 days prior to the bite is provided within 24 hours of the bite. That window is tight, and it’s one more reason to keep vaccination paperwork somewhere accessible, not just at your veterinarian’s office.
The same ordinance authorizes broader quarantines once rabies is confirmed nearby: when reports give a positive diagnosis of rabies, the Animal Control Officer may designate an area as quarantined for a period of 30 days. Penalties escalate quickly for repeat offenders, and a severe enough attack could lead the court to determine euthanasia is the best course of action even for a first offender.
Important Note: Because South Dakota leaves much of this enforcement to cities and counties, the exact fine schedule for an unvaccinated dog bite varies by jurisdiction. Check with your local animal control office, and review pet vaccination laws in South Dakota for the compliance baseline that keeps you out of these penalty provisions entirely.
Dangerous or Vicious Dog Designation After a Bite
A single bite can permanently change your dog’s legal status in South Dakota, and that status follows the dog even if the owner later sells, rehomes, or moves the animal.
After one documented bite, the state of South Dakota considers a dog vicious, meaning that subsequent bites may lead to euthanasia. A dangerous dog, particularly a repeat offender, may be euthanized if this is determined to be in the best interest of the safety of the community. Once your dog carries that designation, everyday decisions about where it can go and who can legally handle it all change — questions that can also surface during separation or pet custody disputes in South Dakota if ownership is contested after the designation is issued.
South Dakota law does build in defenses that can prevent a vicious-dog designation in the first place. Common exceptions include:
- The victim was trespassing on the dog owner’s property.
- The victim provoked the dog through teasing, hitting, or tormenting.
- The dog was protecting its owner from an attack or perceived threat.
Breed isn’t a factor in any of this. According to Alvine Law, under South Dakota Codified Law 40-34-16, local governments are not allowed to ban any dog breeds, and Senate Bill 75, passed on July 1, 2014, prohibits dog breed discrimination in court. A dangerous or vicious designation in South Dakota rests entirely on the individual dog’s documented behavior, not its breed label.
Euthanasia and Rabies Testing When Vaccination Status Is Unknown
Vaccination records go missing more often than owners expect — a lost certificate, a move between veterinary clinics, or a rescue dog with an incomplete history. When status can’t be confirmed after a bite, South Dakota’s default response leans toward caution.
Any animal that bites or attacks a person shall be quarantined at the direction of an Animal Control Officer for a period of not less than 10 days, regardless of whether vaccination records exist. If proof can’t be produced quickly, the calculus shifts toward the stricter end of the local ordinance discussed earlier, and an officer or veterinarian may order euthanasia when a greater risk to human life is judged to exist without it.
If euthanasia and testing do become necessary, timing matters for the dog too. Veterinarians are instructed not to vaccinate the animal prior to beginning the 10-day confinement, because an adverse reaction to the vaccine could be confused with early signs of rabies. That single procedural detail is why record-keeping and prompt proof of an existing vaccination — not a same-day catch-up shot — actually protects an unvaccinated dog’s odds of surviving the observation period.
Keeping proof of vaccination current and easy to produce is, in the end, the simplest way to avoid every scenario in this guide, from extended facility quarantine to a permanent dangerous-dog designation. Pairing that habit with basic leash law compliance in South Dakota closes off both the public-health and civil-liability risks at the same time.
Unvaccinated dog bite laws in South Dakota ultimately reward one simple habit: keeping rabies vaccination current and provable. Whether you’re the owner facing a quarantine notice or the person navigating a claim after being bitten, understanding these overlapping quarantine, liability, and reporting rules puts you in a far stronger position than learning them for the first time after a bite has already happened.
Important Note: This article explains general South Dakota legal and public-health procedures and is not a substitute for advice from a licensed attorney or veterinarian familiar with your specific situation.