South Dakota Mortgage Rate Trends
Track current and weekly average mortgage rates across all loan products in South Dakota, view interactive rate trend charts, and compare SD borrowing costs against the national average.
Current South Dakota Mortgage Rate Trends
Mortgage rates in South Dakota rose by +0.058 this week, pushing the current 30-year fixed average to 6.306%. Borrowers shopping for a home loan in SD are now paying more than they would have last week, when the average stood at 6.248%.
South Dakota's 30-year fixed rate of 6.306% is currently in line with the national average of 6.306%, indicating SD is tracking closely with broader U.S. mortgage market conditions.
The 15-year fixed rate in South Dakota currently averages 5.982%, compared to 5.946% last week. Homeowners considering a refinance into a shorter term should weigh this rate against their current loan conditions and remaining balance. Shorter-term loans typically carry lower rates but require higher monthly payments.
The South Dakota mortgage rate averages displayed on this page are calculated from 14 verified mortgage rate quotes collected across 5 lenders actively operating in South Dakota. Our proprietary systems collect and verify mortgage rates daily — tracking what real licensed institutions are actually quoting to borrowers, not published rate sheet estimates.
Unlike rate comparison sites that show only a handful of lenders, MonitorBankRates maintains a continuously updated mortgage rate database spanning community banks, regional lenders, national institutions, and credit unions across South Dakota. This scale allows us to calculate averages that reflect the full lending landscape — not just the most aggressive advertisers — giving borrowers, journalists, and real estate professionals a more accurate benchmark for what rates actually look like in SD.
Data reflects average rates offered by licensed institutions operating in SD. Last Updated: May 6, 2026
South Dakota Mortgage Rate Trends
Daily average rates across all loan products. Hover over the chart to see exact rates for each day.
South Dakota mortgage rate averages compiled from 14 current mortgage rates across 5 lenders operating in SD — updated daily.
As of May 6, 2026 • Data provided by MonitorBankRates.com
Historical Mortgage Rate Trends
Long-term weekly U.S. mortgage rate history from Freddie Mac's Primary Mortgage Market Survey® (PMMS®). 30-year fixed rates available since April 1971; 15-year fixed since August 1991.
State-level historical mortgage rates are not separately tracked — the chart below shows the national PMMS series for long-run context. The chart above shows current rates specific to South Dakota.
Source: Freddie Mac, Primary Mortgage Market Survey® (PMMS®), retrieved from FRED, Federal Reserve Bank of St. Louis. On November 17, 2022, Freddie Mac changed PMMS methodology from a lender survey to LPA application data.
For Media, Researchers & Real Estate Professionals
Journalists covering South Dakota housing markets, real estate professionals advising clients on timing, and academic researchers studying regional lending patterns are welcome to cite and reference this data. All historical SD rate data is free to use for editorial, research, and educational purposes.
Please attribute MonitorBankRates.com when referencing our figures in any publication, article, or report — and optionally link to https://www.monitorbankrates.com/mortgage-loan-rates/south-dakota/trends. For custom data pulls, contact us here.
