South Dakota Mortgage Calculator (2026)

Rates as of Oct 22 2026 · county tax data: ACS 2020–2024, released 2026-01-29

Statewide avg. effective tax rate
1.06%
Median home value
$288,000
Home insurance (est.)
$2,000/yr

Estimated PITI at the South Dakota median home price of $288,000, 20% down, 30-year fixed at 7.32%: $2,023/mo. The tax line uses Minnehaha County (Sioux Falls)'s effective rate of 1.14% and insurance of $2,000/yr — the calculator's default county. Buyer's transfer tax: no state transfer tax.

Payment calculator

Loan type
$
%
$57,600 cash
%
30-yr fixed base 7.32% · credit adj +0.00% → 7.32% · PMMS Oct 22 2026
Loan term
Credit score
sets local tax & insurance
Picking a county updates the local property tax rate and insurance estimate — your home price stays as entered.
Advanced — HOA & extra payments
$
$
Estimated monthly payment
$2,022.95/mo
$2,023/mo
Principal & interest$1,582.69
Property tax$273.60
Home insurance$166.67
Covers principal & interest, property tax, insurance and mortgage insurance (when it applies). HOA counts only if entered above — left blank it is $0.
Loan amount$230,400
Down payment$57,600
LTV80%
Total interest$339,368
Payoff date…
Cash to close (estimate)
Down payment$57,600
Closing costs (2%–5%)$5,760 – $14,400
Est. cash needed$63,360 – $72,000
Transfer tax: No state transfer tax
The 2%–5% covers lender & title fees only. Transfer tax is not part of the cash total — it is listed separately, and some cities levy their own on top.
Using Minnehaha County (Sioux Falls) effective rate 1.14% · insurance $2,000/yr
Amortization
Year 12
Principal paid
$40,698
Interest paid
$187,209
Still owed
$189,702
$400k$300k$200k$100k$0
08152330

All three lines are running totals since the loan started — not a breakdown of the monthly payment.

What local costs matter in South Dakota?

Effective property tax rate ~1.00%, near the U.S. average
No state income tax; revenue leans on property and sales tax
No state transfer tax
Tornado and hail risk is priced into insurance
All 66 South Dakota counties — property tax rates
CountyEffective tax rateProperty tax /moInsurance (est.)
Minnehaha County (Sioux Falls)1.14%$$274$2,000/yr
Pennington County (Rapid City)1.08%$$259$1,900/yr
Lincoln County1.15%$$276$1,850/yr
Brown County (Aberdeen)1.18%$$283$1,950/yr
Aurora County1.04%$$250$2,000/yr
Beadle County1.09%$$262$2,000/yr
Bennett County0.98%$$235$2,000/yr
Bon Homme County1.27%$$305$2,000/yr
Brookings County1.13%$$271$2,000/yr
Brule County0.96%$$230$2,000/yr
Buffalo County0.4%$$96$2,000/yr
Butte County0.93%$$223$2,000/yr
Show all 66 counties
CountyEffective tax rateProperty tax /moInsurance (est.)
Campbell County1.18%$$283$2,000/yr
Charles Mix County1.1%$$264$2,000/yr
Clark County0.88%$$211$2,000/yr
Clay County1.26%$$302$2,000/yr
Codington County0.97%$$233$2,000/yr
Corson County1.45%$$348$2,000/yr
Custer County0.77%$$185$2,000/yr
Davison County1.23%$$295$2,000/yr
Day County0.98%$$235$2,000/yr
Deuel County0.82%$$197$2,000/yr
Dewey County1.51%$$362$2,000/yr
Douglas County0.99%$$238$2,000/yr
Edmunds County0.8%$$192$2,000/yr
Fall River County1%$$240$2,000/yr
Faulk County0.62%$$149$2,000/yr
Grant County0.91%$$218$2,000/yr
Gregory County1.02%$$245$2,000/yr
Haakon County0.91%$$218$2,000/yr
Hamlin County1.11%$$266$2,000/yr
Hand County0.89%$$214$2,000/yr
Hanson County1.04%$$250$2,000/yr
Harding County1.12%$$269$2,000/yr
Hughes County1.1%$$264$2,000/yr
Hutchinson County1.15%$$276$2,000/yr
Hyde County0.96%$$230$2,000/yr
Jackson County0.65%$$156$2,000/yr
Jerauld County0.84%$$202$2,000/yr
Jones County0.94%$$226$2,000/yr
Kingsbury County1.01%$$242$2,000/yr
Lake County1.03%$$247$2,000/yr
Lawrence County0.79%$$190$2,000/yr
Lyman County0.91%$$218$2,000/yr
Marshall County0.87%$$209$2,000/yr
McCook County1.06%$$254$2,000/yr
McPherson County1.55%$$372$2,000/yr
Meade County1.01%$$242$2,000/yr
Mellette County0.98%$$235$2,000/yr
Miner County0.92%$$221$2,000/yr
Moody County1.1%$$264$2,000/yr
Oglala Lakota County0.38%$$91$2,000/yr
Perkins County1.29%$$310$2,000/yr
Potter County1.42%$$341$2,000/yr
Roberts County0.97%$$233$2,000/yr
Sanborn County1.17%$$281$2,000/yr
Spink County1.28%$$307$2,000/yr
Stanley County1.32%$$317$2,000/yr
Sully County0.83%$$199$2,000/yr
Todd County1.81%$$434$2,000/yr
Tripp County0.95%$$228$2,000/yr
Turner County0.98%$$235$2,000/yr
Union County1.1%$$264$2,000/yr
Walworth County1.31%$$314$2,000/yr
Yankton County1.06%$$254$2,000/yr
Ziebach County0.62%$$149$2,000/yr
South Dakota state average1.06%$$254$2,000/yr
Monthly tax is estimated on a $288,000 home — the price in the calculator above. Effective rates — U.S. Census Bureau, ACS 2024 (5-yr).

† Rates marked with ≥ are conservative estimates. ACS suppresses median tax values above $10,001 for privacy, which makes the calculated rate a lower bound — the true rate is higher in Manhattan, parts of Long Island, northern New Jersey and other high-cost areas.

How South Dakota compares

South Dakota's statewide average effective rate is 1.06% — the 18th highest of the 51 covered here (the 50 states and DC), against a median of 0.8%. On the $288,000 home the calculator starts with, that is about $254 a month in property tax before any other cost. Property taxes by state ranks all 51 with median bills attached.

A state average hides the part that changes the bill. The county rows above run from 0.38% in Oglala Lakota County to 1.81% in Todd County — roughly $343 a month apart on the same $288,000 home. That is why the county picker moves the payment more than the state picker does.

Insurance is the other line that follows the address: this page prices $2,000 a year as a state-level estimate, and home insurance by state covers how premiums are set and where they run highest. Below 20% down, PMI adds a third variable until the balance is back to 80% of the value.

The states nearest South Dakota in the ranking are Massachusetts (1.07%) and Maine (1.02%).

South Dakota mortgage FAQ

How much down payment do I need to buy a house in South Dakota?

Conventional loans start at 3% down, but anything under 20% requires PMI until you reach 20% equity — PMI auto-cancels at 78% of the original home value under the Homeowners Protection Act. FHA loans start at 3.5% down, and VA / USDA loans offer 0% down for eligible borrowers. Those are the national minimums: a lender can set a higher floor for this state or for a given loan size.

Why do property taxes vary so much within South Dakota?

Property taxes are layered by county, city and school district, so the effective rate differs block by block. The South Dakota state average is about 1.06%, but counties in our table above range widely — always confirm the exact bill with the local County Assessor.

When does PMI go away?

Under the Homeowners Protection Act (1998) you can request PMI removal at 80% LTV, and lenders must automatically cancel it when the balance reaches 78% of the original home value. This calculator estimates that month for you and shows the lower payment after PMI drops.

Does this calculator include home insurance for South Dakota?

Yes. The calculator pre-fills a typical South Dakota premium of about $2,000 per year and updates it when you switch counties. Hail, tornadoes and blizzards are the perils that price South Dakota policies. Get real quotes before budgeting.

More free mortgage tools

affordability calculator — how much house can I afford →refinance calculator — break-even & savings →closing cost calculator — cash to close by state →
Sources

Freddie MacU.S. Census BureauFannie MaeU.S. Department of Housing and Urban Development (HUD)U.S. Department of Veterans AffairsPrivate mortgage insurersNAICState statutes and departments of revenue

Results are estimates for planning only and are not a loan approval. Property tax rates and insurance premiums vary by county, ZIP code, home age and coverage — confirm with the local County Assessor and insurer quotes. Rate default: Freddie Mac PMMS 30-yr fixed (7.32%, Oct 22 2026); the 20-yr default is an estimate derived from the PMMS 30-yr/15-yr spread (PMMS has no 20-yr series). Conventional credit pricing adds Fannie Mae loan-level price adjustments (effective 2026-10-01) on top of that base, anchored at the 740–759 tier, and PMI comes off a credit × LTV rate card — both are central estimates, not quotes. Loan minimums shown here are the national programs' floor; a lender may set a higher down payment, rate or fee for this state or this loan.