30-Year Fixed Mortgage Refinance Interest Rates in Summerville, SC
Explore 30-year fixed mortgage refinance rates in Summerville, SC over time.
7.317%7.32%
7.318%7.32%
Timeframe
Daily refinance averages provided by the Mortgage Research Center.
Compare mortgage rates in Summerville, South Carolina
Showing results for: 30-Year Fixed refinance offers for Single Family or Townhome properties in SC, total loan amount of $228,000.
| Lender | APR / Rate | Monthly Payment | |
|---|---|---|---|
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
What refinancing looks like in Summerville at today's rates
2018–2022 ACS median owner-occupied home value for ZCTA 29483: $278,100. This is not a current citywide sale price or a valuation of your property. Census home-value source. South Carolina statewide house prices changed 3.8% over four quarters, using the FHFA state house-price index via FRED. This historical state measure is not city growth, a property valuation, or a forecast. Property-tax examples use a statewide planning assumption, not your local tax bill. Data retrieved 10/11/2026; retrieval does not change the observation period.
For an illustrative home value of $278,100, an example refinance balance of $222,480 (80% of that value) at today's average 30-year fixed rate in South Carolina of 7.32% works out to roughly $1,528/month in principal and interest, with $327,539 of total interest over the 30-year term.
Here is how the monthly payment and break-even point change if you wait for (or negotiate) a lower rate, assuming closing costs of $5,562 (2.5% of the loan):
| Rate | Monthly P&I | Monthly savings | Break-even |
|---|---|---|---|
| 7.32% (today) | $1,528 | — | — |
| 7.07% (−0.25%) | $1,490 | $38/mo | 147 months |
| 6.82% (−0.50%) | $1,453 | $75/mo | 75 months |
| 6.57% (−0.75%) | $1,416 | $112/mo | 50 months |
| 6.32% (−1.00%) | $1,380 | $148/mo | 38 months |
Estimates use principal and interest only and today's average South Carolina rate; they exclude taxes, insurance, and rate differences from credit score or loan size.
Weighing the term itself? At today's South Carolina average 15-year fixed rate of 6.44%, the same $222,480 balance costs $1,930/month over 15 years — $402/month more than the 30-year fixed option, but with $202,557 less interest paid over the life of the loan.
When is a 30-year refinance worth considering in Summerville?
Compare your current loan with an actual lender offer, including the remaining term, closing costs, and how long you will keep the loan. A lower payment can come from extending repayment rather than reducing total cost. Statewide house-price growth does not establish your home value or guarantee savings.
Can refinancing remove PMI on my Summerville home?
A conventional refinance may avoid borrower-paid PMI if the new balance and lender-accepted value meet the loan requirements. Include financed closing costs in that balance. First ask your servicer whether you can cancel PMI on the existing loan without refinancing. FHA mortgage insurance and lender-paid insurance follow different rules; appreciation alone does not guarantee cancellation.
How should I compare 30-year refinance offers in Summerville?
Compare Loan Estimates for the same loan amount, term, rate-lock period, and treatment of points and lender credits. Compare lender-controlled charges separately from taxes, insurance, and prepaid expenses. A no-closing-cost offer can exchange upfront fees for a higher rate or larger balance.
How do I check equity and jumbo eligibility in Summerville?
Use your own payoff balance and the valuation accepted by the lender. Historical ZIP-area home values do not determine your equity. For one-unit properties in 2026, the FHFA baseline conforming limit is $832,750, with higher limits in certain locations. Check the property county and number of units; a high home price does not determine its county limit.
What changes when I choose a 30-year refinance?
A longer new term can lower monthly payments while extending repayment beyond your current payoff date. Compare remaining interest and the balance at your planned sale date, as well as monthly cash flow.
Check the CFPB PMI cancellation guidance and FHFA county loan limits. Remove PMI without refinancing, compare Loan Estimates, or compare refinance costs in the calculator.
Compare equity and costs with a 30-year refinance in Summerville
Estimate loan-to-value using your own mortgage payoff balance and the property value accepted by your lender. Include any financed closing costs or cash-out in the proposed balance. A historical statewide house-price index does not establish your property's equity.
Before paying to refinance for PMI savings, ask your servicer about cancellation on the existing loan. Compare ways to remove PMI without refinancing.
Property Tax Tip for Summerville Homeowners
Use your current tax bill and insurance premium when comparing total payments. Refinancing does not itself lower those charges. Escrow deposits and prepaid expenses affect cash needed at closing, and assessments and premiums can change afterward.
How Summerville compares across South Carolina
These ZIP-area home-value examples compare estimated monthly principal and interest across South Carolina. They use historical ACS values or illustrative fallback estimates, rather than current citywide prices (80% loan-to-value) at today's average 30-year fixed rate of 7.32%:
| City | Example home value | Est. monthly P&I | vs. Summerville |
|---|---|---|---|
| Summerville (ZCTA / ZIP 29483) | $278,100 ACS 2018–2022 | $1,528 | — |
| Columbia (ZCTA / ZIP 29201) | $234,500 ACS 2018–2022 | $1,288 | −$240/mo |
| Florence (ZCTA / ZIP 29501) | $209,200 ACS 2018–2022 | $1,149 | −$379/mo |
| Sumter (ZCTA / ZIP 29150) | $140,700 ACS 2018–2022 | $773 | −$755/mo |
Estimates use the listed ZIP-area values with the same statewide average rate; actual quotes vary by lender, credit profile, and loan size.