Average Cost of Car Insurance in South Dakota (2026)

Full coverage in South Dakota costs $1,269 per year, $224 less than the $1,493 national average cost. Minimum coverage costs $383 per year, $343 less than the national $726. The minimum coverage saving is $119 larger than the full coverage saving in dollar terms. South Dakota's position in Hail Alley and its high deer collision rate drive comprehensive and collision claims higher, costs that fall on full coverage policies and narrow the savings on that side.

South Dakota ranks 18th nationally for cost, clustered with North Carolina ($105 per month) and Alaska ($106 per month). Vermont holds the national low at $75 per month for full coverage. Florida is near the top at $243 per month. Two factors shape South Dakota rates above others: hailstorms concentrated in spring and summer, and deer collisions averaging roughly $4,000 per claim. Rural road conditions add to that, with higher speed limits producing more severe crash injuries and fewer insurers competing in rural counties.

State minimum liability costs $34 per month in South Dakota. Full coverage at 100/300/100 limits with a $1,000 deductible costs $111 per month, a $77 monthly difference. Adding comprehensive and collision to minimum liability costs $26 more per month at a $1,000 deductible ($60 per month total). In a state with South Dakota's hailstorm frequency and deer collision rate, that $26 monthly step protects your vehicle against risks that are more common here than in most states.

Two combinations cost more than full coverage while delivering lower liability protection. The 50/100/50 + $500 Deductible costs $123 per month, $12 more than full 100/300/100 coverage at $111, with lower limits across the board. The Minimum Liability + $250 Deductible costs $138 per month, $27 more than full coverage, while keeping liability at the state minimum. These are averages, so it's worth comparing all three limit levels to see if the pattern holds for your profile. The 300/500/300 + $1,500 Deductible at $112 per month costs just $1 more than full coverage with higher limits on average. The $0 deductible option at $184 per month costs $73 more per month, with a break-even of under 14 months, a shorter time frame than in most states.

Full coverage ranges from $119 per month in Rapid City to $86 per month in Brookings, a $33 monthly difference across South Dakota's 10 most populous cities. That city range is the narrowest of any state we've reviewed, reflecting South Dakota's predominantly rural character and the compressed risk profiles of its largest cities.

Rapid City's $119 rate reflects its role as the gateway to the Black Hills: heavy tourist traffic, higher vehicle theft rates and its function as the commercial hub for western South Dakota all push claims above the state average. Brookings benefits from its smaller college-town character, with lower crime rates and less congested roads keeping full coverage 28% below Rapid City's figure. Sioux Falls at $100 per month, the state's largest city, comes in $19 below Rapid City. Most states show the largest city near the top of the city table; South Dakota doesn't follow that pattern.

Adding a 16-year-old male to a family policy costs $233 per month in South Dakota, $122 above the 40-year-old baseline of $111. A 16-year-old female costs $215 per month on a family policy, an $18 monthly difference that reflects South Dakota's use of gender as a rating factor. Drivers under 18 can't get their own individual policy, so the family plan rate is the only option for that age group.

That $18 gender difference at 16 narrows to $3 per month by age 25. Family plan rates are lower than individual rates through the early 20s, when some companies start pricing individual policies competitively. Comparing both options at 19 and 20 is worth doing, since the crossover varies by company.

South Dakota's not-at-fault penalty is just $2 per month ($24 per year), one of the lowest of any state we've reviewed. The at-fault accident penalty tells a different story: $50 per month ($600 per year), a 45% surcharge over the clean-record baseline of $111. A DUI adds $99 per month, raising full coverage from $111 to $210 per month and pushing annual costs to $2,514.

Speeding adds $20 per month ($240 per year). Violations affect rates for three to five years. Re-shopping at the three-year mark after any violation captures available market savings before your current insurer applies them at renewal. Drivers with a DUI or multiple violations may find fewer carrier options in South Dakota's rural counties. Our SR-22 car insurance guide for South Dakota covers high-risk coverage requirements and which companies work with affected drivers.

South Dakota drivers with bad credit pay $290 per month for full coverage compared to $101 for good credit, a $189 monthly difference that adds up to $2,268 more per year. That annual penalty exceeds South Dakota's entire full coverage premium ($1,269 per year) by $999, making credit the single most consequential factor on this page by a wide margin. It outpaces the vehicle range ($101 per month), the DUI surcharge ($99 per month) and the company range ($44 per month).

South Dakota permits insurers to use credit-based insurance scores when setting premiums. Improving your credit score reduces your rate at each renewal without any change to your coverage or driving behavior. Drivers with bad credit should re-shop every six to twelve months as their score improves, since insurers reprice at renewal rather than in the middle of the policy term.

Insuring a Tesla Model Y in South Dakota costs $228 per month for full coverage compared to $127 for a Honda Civic, a $101 monthly difference equal to $1,212 per year. South Dakota is the only state we've reviewed where the Honda Civic ($127 per month) is cheaper than the Ford F-150 ($128 per month) for full coverage, a one-dollar reversal of the standard ordering worth noting if you're comparing those two vehicles.

The Tesla Model 3 at $188 per month costs $37 more than the Toyota RAV4 at $151, a steep step within the non-luxury segment. South Dakota's hailstorm and deer collision exposure adds comprehensive risk for all vehicles. For EVs, hail damage to battery systems or sensors produces repair costs that a conventional vehicle in the same storm wouldn't face. The Toyota Prius at $148 and RAV4 at $151 sit close together, showing hybrid pricing tracks conventional gas in South Dakota's claim environment. Drivers prioritizing lower premiums can save $101 per month by choosing a Honda Civic over a Tesla Model Y.

Credit score produces the largest premium difference in South Dakota at $189 per month, wider than the cost ranges of vehicle choice ($101 per month), DUI surcharge ($99 per month) and company choice ($44 per month). South Dakota's Hail Alley position and high deer collision rate create a baseline of weather and wildlife risk that affects all drivers. Credit, vehicle choice and company selection determine how much an individual driver pays above or below the statewide average.

Company choice is one of the most influential cost factors within drivers' control. Progressive at $55 per month and GEICO at $99 per month charge a $528 annual difference for the same driver with identical coverage. That's not a function of where you live or what you drive — it's purely which company you call.

Getting quotes from at least three companies is the fastest way to find out where the market prices your specific profile. Our rankings of the cheapest car insurance companies in South Dakota cover rate data across all available carriers, and our guide to the best car insurance in South Dakota weighs service and claims quality for drivers who want more than the lowest number.

South Dakota's car insurance costs vary across the state, with Rapid City above average and smaller cities like Brookings and Watertown below it. These are the questions South Dakota drivers ask most about what affects their premiums.

We used this profile to determine auto insurance costs across all available ZIP codes and cities in the state:

• 40 years old
• Clean driving record
• Good credit
• 2012 Toyota Camry LE

Sections on cost by age and driving record use rates for those specific driver profiles, with all other factors held constant.

Minimum coverage is a state's minimum liability coverage. Full coverage is a policy with 100/300/100 liability limits and a $1,000 deductible for comprehensive and collision coverage.