Current South Dakota Mortgage Rates
Average market rates for September 21, 2026 in South Dakota are 7.09% for 30-year fixed purchase and 7.15% for 30-year fixed refinance
| Product | Rate | APR |
|---|
| 30-year Fixed Purchase | 7.09% | 7.13% |
| 30-year Fixed Refinance | 7.15% | 7.19% |
Rates based on market averages as of Sep 20, 2026.Mortgage Rate Trends in South Dakota
| Product | Rate | APR |
|---|
| 30-year Fixed Purchase | 7.09% | 7.13% |
| 30-year Fixed Refinance | 7.15% | 7.19% |
Rates based on market averages as of Sep 20, 2026.South Dakota Purchase Rates
| Product | Rate | APR |
|---|
| 15-year Fixed Purchase | 6.35% | 6.43% |
| 15-year Fixed Jumbo Purchase | 6.40% | 6.44% |
| 30-year Fixed Purchase | 7.09% | 7.13% |
| 30-year Fixed Jumbo Purchase | 7.23% | 7.25% |
Rates based on market averages as of Sep 20, 2026.South Dakota Refinance Rates
| Product | Rate | APR |
|---|
| 15-year Fixed Refinance | 6.35% | 6.41% |
| 15-year Fixed Jumbo Refinance | 6.43% | 6.46% |
| 30-year Fixed Refinance | 7.15% | 7.19% |
| 30-year Fixed Jumbo Refinance | 7.30% | 7.33% |
Rates based on market averages as of Sep 20, 2026.South Dakota ARM Rates
| Product | Rate | APR |
|---|
| 5/6 Arm (purchase) | 6.53% | 6.63% |
| 5/6 Arm (refinance) | 6.50% | 6.56% |
| 5/6 Jumbo Arm (purchase) | 6.33% | 6.35% |
| 5/6 Jumbo Arm (refinance) | 6.33% | 6.35% |
Rates based on market averages as of Sep 20, 2026.How we source rates and rate trends
×
Rate data in the charts and tables above comes from
RateUpdate.com.
The displayed rates come from multiple providers and represent market averages. Your mortgage rate will differ
based on individual factors like your credit score as well as differing loan types and terms offered by lenders.
Most Common Mortgage Types in South Dakota
- Conventional: 7,516 loans
- FHA: 1,361 loans
- USDA: 390 loans
- VA: 1,167 loans
Top Purchase Lenders in South Dakota by Volume
- 549300kj8paj7e52hg32: 1,561 loans
- First Premier Bank: 669 loans
- First Bank & Trust: 505 loans
- First Dakota National Bank: 468 loans
- Black Hills Federal Credit Union: 425 loans
- Cmg Mortgage, Inc.: 416 loans
- Gateway First Bank: 395 loans
- Bankwest, Inc.: 378 loans
- Fairway Independent Mortgage Corporation: 338 loans
- American Bank & Trust: 289 loans
Top Refinance Lenders in South Dakota by Volume
- First Interstate Bank: 204 loans
- First Premier Bank: 186 loans
- 549300kj8paj7e52hg32: 173 loans
- Black Hills Federal Credit Union: 164 loans
- First Bank & Trust: 141 loans
- U.S. Bank: 99 loans
- Wells Fargo Bank: 77 loans
- First Dakota National Bank: 63 loans
- Rocket Mortgage, LLC: 60 loans
- Sioux Falls: 56 loans
Top Cash-Out Refinance Lenders in South Dakota by Volume
- Rocket Mortgage, LLC: 441 loans
- Sioux Falls: 230 loans
- 549300kj8paj7e52hg32: 188 loans
- Wells Fargo Bank: 183 loans
- Black Hills Federal Credit Union: 110 loans
- Loandepot.com, LLC: 100 loans
- Nationstar Mortgage LLC: 84 loans
- First Bank & Trust: 83 loans
- First Interstate Bank: 83 loans
- First Premier Bank: 75 loans
How we source lender data
Meet the Author
The Refi.com team is compiled of journalists, editors, and mortgage industry professionals to ensure you have the most accurate information on mortgage refinancing.
