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Rapid City, South Dakota Mortgage Refinance Interest Rates

Discover the latest mortgage interest rates to make informed decisions about your home refinancing.

Interest rate over time in Rapid City, South Dakota

As of Sep 6, 2026
15-Yr Fixed

5.972%5.97%

+0.13% · 1wk
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30-Yr Fixed

6.844%6.84%

+0.09% · 1wk
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30-Yr Jumbo

6.827%6.83%

+0.21% · 1wk
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Timeframe

Daily refinance averages provided by the Mortgage Research Center.

Compare mortgage rates in Rapid City, South Dakota

Showing results for: 15-Year Fixed and 30-Year Fixed refinance offers for Single Family or Townhome properties in SD, total loan amount of $228,000.

LenderAPR / RateMonthly Payment
Mortgage Rate Company

Rate data provided by RateUpdate.com. Displayed by Mortgage Research Center, NMLS #1907, Equal Housing Opportunity. Rates and fees are estimates and subject to change without notice. Payments do not include taxes and insurance premiums. Actual payments may be higher. Not all lenders participate in this marketplace. Loan availability and terms may vary by state and lender. Lender offers, including badges like “Lowest APR” or “Lowest Payment,” are based only on results displayed here and may not reflect the absolute lowest offer available in the market. Rate and product details

Should You Refinance in Rapid City?

Stable Market

2.2% annual appreciation

· Data updated 9/6/2026

In Rapid City's stable market, refinancing decisions should focus on interest rate comparisons. Even a 0.5% rate reduction can result in significant savings over the life of your loan.

Local Market Context

Rapid City, South Dakota homes have a median value of $206,700, with 2.2% year-over-year appreciation. Consistent home values provide a solid foundation for refinancing decisions focused on lowering interest rates and monthly payments.

Estimated Monthly Payment in Rapid City

Based on the median home price of $206,700 with 20% down at 6.84% (30-year fixed):

Principal & Interest$1,082.87/mo
Property Tax$226/mo
Homeowner's Insurance (est.)$125/mo
Estimated Total (PITI)$1,434/mo
Estimate only. Actual payments vary based on your loan terms, credit score, and insurance costs.

Rate Savings Scenarios for Rapid City

How your monthly principal & interest payment changes at different rates (20% down on $206,700 median home):

Interest RateMonthly P&Ivs. Current Rate
Current rate (6.84%)$1,083
6.34% (–0.5%)$1,028–$55/mo
5.84% (–1.0%)$975–$108/mo
Estimates based on principal and interest only. Does not include taxes or insurance.

Down Payment Impact in Rapid City

Monthly principal & interest at 6.84% for different down payments on the $206,700 median home:

Down PaymentLoan AmountMonthly P&I
10% down ($20,670)$186,030$1,218
15% down ($31,005)$175,695$1,151
20% down ($41,340)$165,360$1,083
Estimates based on principal and interest only. Does not include taxes, insurance, or PMI.

Property Tax Impact

Property taxes in Rapid City, South Dakota average 1.31% of home value, which is moderate compared to the national average. When refinancing, it's important to remember that your total monthly payment includes these taxes (approximately $226 per month for a median-valued home). A lower interest rate might reduce your principal and interest payment, but your property tax portion stays the same.

South Dakota ranks 35th (average/high) nationally for property taxes, which directly affects your total monthly payment when buying or refinancing.

Cost of Living Context

Rapid City's cost of living is 2% below the national average (index: 98), meaning housing costs tend to run lower than typical — which may allow for higher purchasing power when buying or refinancing.

Calculate Your Exact Refinance Savings

Get a personalized analysis based on your specific mortgage details, compare multiple offers, and see your break-even point.

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Smart Refinancing Strategies for Rapid City Homeowners

Hey Rapid City! Thanks to the local economy and Ellsworth AFB, our market offers reliable and robust growth while remaining accessible. This is a huge advantage when calculating your home equity.

FHA to Conventional & Your LTV

Rapid City attracts many young professionals and military personnel who often start with FHA or VA loans. Refinancing relies heavily on your Loan-to-Value (LTV) ratio.

Once your LTV drops under 80%, refinancing from an FHA loan into a standard Conventional loan is the smartest move you can make to drop your mortgage insurance premium.

Property Tax Tip for Rapid City Homeowners

A cash-out refinance is a great strategy here. Use your new equity to fund home improvements or consolidate higher-interest debt without drastically inflating your monthly housing payment.

Hero & Housing Programs for Rapid City

The SDHDA provides excellent support for South Dakota residents. Check out their conventional loan products, which often provide better long-term value than standard FHA offerings.


What Interest Rate Drop Makes Refinancing Worth It in Rapid City?

In Rapid City's stable market with 2.2% annual appreciation, refinancing is generally worthwhile when you can reduce your rate by at least 0.75-1%. For a $206,700 home with an 80% LTV ($165,360 loan), dropping from 7% to 6% saves approximately $140/month. With typical closing costs around $4,134, you'd break even in about 30 months. If you plan to stay in your home at least 3 years, refinancing makes financial sense.

How Do I Calculate My Break-Even Point for Refinancing in Rapid City?

Calculate your break-even point by dividing total closing costs by monthly savings. In Rapid City, closing costs typically run 2-3% of your loan amount. If you're refinancing $165,360 (80% of Rapid City's $206,700 median home value), expect around $4,134 in costs. Compare your current monthly payment to your new payment including the 1.31% property tax, insurance, and the new principal/interest. If refinancing saves $150/month, your break-even is 28 months. Don't forget to factor in how long you plan to keep the home.

Should I Refinance from a 30-Year to 15-Year Mortgage in Rapid City?

Shortening your term from 30 to 15 years can save substantial interest and typically offers rates 0.5-0.75% lower. On Rapid City's median home value of $206,700, you could save over $100,000 in interest over the loan's life. However, monthly payments increase significantly-a $165,360 loan at 6% jumps from approximately $1,122/month (30-year) to $1,440/month (15-year at 5.5%). Refinance to a 15-year if you can comfortably afford the higher payment and want to build equity faster in Rapid City's stable market.

Can I Refinance If I Still Have PMI in Rapid City?

Yes, and eliminating PMI is often a primary refinancing goal. PMI typically costs 0.5-1% of your loan amount annually. On a $165,360 mortgage in Rapid City, that's $200-400/month. With 2.2% annual appreciation plus principal paydown, you may have crossed the 80% LTV threshold. If you purchased with 5-10% down 3-4 years ago, appreciation likely brought you to 20%+ equity. Refinancing removes PMI permanently (unlike conventional loans where it can take years to cancel), immediately lowering your payment even if you get the same interest rate.

Is a No-Closing-Cost Refinance a Good Deal in Rapid City?

No-closing-cost refinances roll $4,961 in typical closing costs into your loan balance or offset them with a slightly higher interest rate (usually 0.25-0.5% higher). In Rapid City's stable market, this makes sense if you plan to move within 3-5 years, avoiding the $28-month break-even period on traditional refinances. However, if you're staying long-term, paying closing costs upfront and getting a lower rate saves more money over time. Calculate both scenarios: upfront costs with lower rate versus no costs with higher rate over your expected timeline.

How Rapid City compares across South Dakota

Median home prices vary widely across South Dakota, which changes what a typical refinance costs. Here is the estimated monthly principal and interest on a median-priced home (80% loan-to-value) at today's average 30-year fixed rate of 6.84%:

CityMedian home priceEst. monthly P&Ivs. Rapid City
Rapid City$206,700$1,083
Aberdeen$204,300$1,070−$13/mo
Yankton$198,600$1,040−$43/mo
Pierre$218,500$1,145+$62/mo

Estimates use each city's median home price with the same statewide average rate; actual quotes vary by lender, credit profile, and loan size.