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South Dakota Mortgage Calculator

Use this free South Dakota mortgage calculator to estimate your monthly mortgage payments and annual amortization.

Loan details

%

Monthly payment

$2,120

at 6.93% · 30-year fixed

  • Principal & interest

    $1,585

  • Property taxes

    $375

  • Homeowners insurance

    $160

Loan amount

$240,000

Total interest paid

$330,765

Payoff date

—

YOU'RE KEEPING $12,786

$12,786

stays in your pocket

That's your total savings over 30 years at today's best rate on NerdWallet (6.93%) vs. the 7.15% national average — $36 less every month.

  • Today's best rate: 6.93%

  • Get your free rate with no credit impact

Get my rate

No impact to your credit score

Calculated payments and savings are estimates. The calculator result does not constitute an offer for a loan and will not solicit a loan offer. Savings will depend on the actual amounts and rate for which you are approved, should you choose to apply.

Getting a Mortgage in South Dakota

Written by 
,  Edited by 
 and 
Last updated November 19, 2025
While prices have increased in recent years, similar to overall U.S. market trends, housing is still relatively affordable in South Dakota.
The typical monthly mortgage payment for a median-priced home in Minnehaha County, which is home to Sioux Falls, was $1,825 in Q1 2025, based on a $311,375 home value, according to the National Association of Realtors. By comparison, the national median payment was $2,120 on a median-priced single-family home valued at $402,300.

South Carolina mortgage and refinance rates today (APR)

ProductInterest rateAPR
30-year fixed-rate7.259%7.263%
20-year fixed-rate7.215%7.226%
15-year fixed-rate6.548%6.558%
10-year fixed-rate6.750%6.806%
7-year ARM7.324%7.136%
5-year ARM7.000%6.811%
30-year fixed-rate FHA5.375%6.092%
30-year fixed-rate VA6.512%6.860%
Data source: ©Zillow, Inc. 2006 – 2026. Use is subject to the Terms of Use

Today's rate

7.263%

30-year fixed

Today's mortgage rates in South Carolina are 7.263% for a 30-year fixed, 6.558% for a 15-year fixed, and 6.811% for a 5-year adjustable-rate mortgage (ARM).

South Dakota's first-time home buyer programs

There are several national first-time home buyer programs that may be able to help you get into a home in South Dakota.
» MORE: First-time home buyer programs by state

Average property tax by county

Taking U.S. Census data, NerdWallet has crunched the numbers to help you understand what property tax rate you can expect to pay on your future home in South Dakota. Because assessed values aren't frequently updated, you may pay a higher rate at first but eventually you'll pay a similar rate.

CountyAvg. property tax rateMedian home value
Aurora County1.03%$120,800
Beadle County1.07%$152,100
Bennett County0.78%$128,100
Bon Homme County1.05%$112,700
Brookings County1.15%$227,800
Brown County1.14%$200,400
Brule County0.74%$187,900
Buffalo County0.36%$103,800
Butte County0.86%$189,000
Campbell County1.24%$80,300
Charles Mix County0.93%$163,200
Clark County0.86%$135,500
Clay County1.12%$209,300
Codington County1.02%$206,600
Corson County0.75%$76,000
Custer County0.68%$294,700
Davison County1.21%$178,100
Day County0.86%$134,800
Deuel County0.85%$178,100
Dewey County0.76%$74,800
Douglas County0.86%$120,900
Edmunds County0.84%$142,300
Fall River County1.03%$158,500
Faulk County0.73%$115,300
Grant County0.98%$168,500
Gregory County1.04%$109,100
Haakon County0.66%$139,200
Hamlin County1.05%$181,800
Hand County0.84%$150,000
Hanson County0.87%$171,300
Harding County0.96%$128,300
Hughes County1.08%$216,500
Hutchinson County1.03%$143,800
Hyde County1.30%$97,300
Jackson County0.69%$108,400
Jerauld County0.86%$117,600
Jones County0.77%$99,000
Kingsbury County0.86%$149,300
Lake County0.99%$196,600
Lawrence County0.92%$267,900
Lincoln County1.12%$343,000
Lyman County0.82%$132,100
Marshall County0.73%$141,100
McCook County0.94%$186,100
McPherson County1.03%$77,900
Meade County1.01%$252,300
Mellette County0.79%$60,700
Miner County0.87%$93,900
Minnehaha County1.13%$268,200
Moody County1.05%$194,000
Pennington County1.09%$298,200
Perkins County1.22%$108,900
Potter County1.16%$129,800
Roberts County0.73%$127,800
Sanborn County1.15%$128,800
Spink County1.00%$108,200
Stanley County1.14%$170,400
Sully County0.91%$190,800
Todd County0.68%$40,500
Tripp County0.72%$128,100
Turner County1.05%$175,300
Union County1.20%$254,900
Walworth County1.19%$115,900
Yankton County1.06%$190,400
Ziebach County0.78%$93,000
Source: American Communities Survey 2022, U.S. Census

How to use the mortgage calculator

To use our mortgage calculator, add your details to the following fields:
1. Home price: What you're hoping to spend on a home.
2. ZIP code: The home's location.
3. Down payment: How much cash you're paying upfront towards the home's price. This calculator defaults to showing a 20% down payment, but you can adjust it up or down by changing the dollar amount or the percentage. This calculator assumes you're using a conventional loan, so it will automatically add private mortgage insurance if the down payment amount is less than 20%.
4. Loan term: The default is 30 years, but you can also choose a shorter term.
5. Interest rate: Use today's average APR, enter the rate you've been quoted or use the lowest APR NerdWallet partners are offering today.
That's the least you can do. To get more accurate results, fill in the following four categories. (Estimates are fine, but this goes over how to get more specific numbers.)
6. Property taxes (per year): This is autofilled with an estimate, but property taxes vary tremendously throughout the country. Get more precise by looking up the tax rate where you're planning to buy or looking at the tax history for the home you're interested in. You can change the property tax amount by editing the dollar amount or the percentage.
7. Homeowners insurance (per year): Mortgage lenders require borrowers to have homeowners insurance. Not sure what you might pay? This calculator puts in an estimate, but you can use NerdWallet's home insurance calculator to fine-tune it. All you need to know is the property location and the rough amount you'd be looking to insure — use the home's price as a proxy.
8. HOA fees: If the home is part of a homeowners association, put the monthly dues here. (The calculator default is no HOA costs.) This is also information you can likely crib from a home's listing. One other note, if there are HOA fees but you're going to pay them directly rather than with an escrow account, you can omit them here.
9. PMI (monthly): If you've entered a down payment amount under 20%, this will autofill, since the calculator assumes you're using a conventional loan. PMI is tied to your credit score, so if you want a more accurate figure, pop over to NerdWallet's PMI calculator. If you're using a VA loan, you can zero this out, since VA loans do not require mortgage insurance. On the other hand, if you're getting an FHA loan, you'll have to pay mortgage insurance premiums regardless of your down payment amount. For more accurate payment info, use our FHA mortgage calculator.
The calculator's results will update as you adjust the numbers in these fields. The results show you the monthly payment, as well as:
  • Loan amount: How much you're actually borrowing in principal.
  • Total interest paid: How much interest you will pay over the life of the mortgage if you keep it until its term ends. (Most people sell or refinance well before that point, but it's still interesting info.)
  • Payoff date: If you kept the same loan for its entire term, here's the month and year when you'd own the home free and clear.
There's also a simple annual amortization schedule. Amortization shows how your mortgage payment changes over time. Even though the principal and interest payment doesn't change with a fixed-rate mortgage, the percentage of that payment that's going toward each component does. At the beginning of the loan, more goes toward interest; the closer to the end of the loan's term, the more of the payment goes toward principal. If you want a more detailed month-by-month look, yes, NerdWallet has an amortization calculator, too.
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CONSIDERING A REFI? If you're looking to see how much you could save by refinancing your mortgage, try NerdWallet's refinance calculator.
» MORE FOR CANADIAN READERS: Canada mortgage payment calculator