How Mortgage Payments Work in South Dakota
A standard mortgage payment in South Dakota is calculated using the amortization formula:M = P[r(1+r)^n] / [(1+r)^n - 1]
Where P is the loan principal, r is the monthly interest rate (annual rate ÷ 12), and n is the number of monthly payments. On a $275K home in South Dakota with a 10% down payment at 6.9% over 30 years, your principal and interest payment comes to approximately $1,630/month— not including property taxes or homeowner's insurance.
South Dakota's property tax rate of 1.14% adds roughly $261/month to your total housing cost on a $275K home. This rate is near the national average of ~1.1%.
South Dakota vs. National Average
| Metric | South Dakota | National Avg |
|---|---|---|
| Median Home Price | $275,000 | $420,000 |
| Property Tax Rate | 1.14% | 1.07% |
| Avg Mortgage Rate | 6.9% | 6.85% |
| Cost of Living Index | 95 | 100 |