Select your Scenario
20% Down · 15-Year
5.863%No PMI · fastest payoff
10% Down · 15-Year
5.863%Faster equity
5% Down · 15-Year
5.863%Buy sooner
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15-Year Fixed Mortgage Details for Charleston County
Faster payoff · Lower rate · Higher monthly payment
- • Rate typically 0.5–0.75% lower than comparable 30-year
- • Equity builds at roughly twice the pace — reaches 50% LTV in ~7 years
- • Significant total interest savings over the life of the loan
- • Stricter DTI — lenders qualify on the higher required payment
Frequently Asked Questions
What are current 15-year fixed rates today in Charleston County, SC?
Today's leading benchmark rate for 15-year fixed rates in Charleston County, SC is 6.807% (with an estimated monthly payment of $3,036). Calibrated directly to Charleston County, SC's local housing market, Safe Rate shows up-to-the-minute interest rates and points across Conventional, FHA, VA, and Jumbo loan programs daily.
What is the recent trend for 15-year fixed rates in Charleston County, SC?
Mortgage rates for 15-year fixed rates have shown typical daily fluctuations driven by inflation data and bond yields. Over the past 90 days, rates for 15-year fixed rates in Charleston County, SC have hovered between a low of 6.461% and a high of 6.921%. You can track these daily movements by using the 90-day rate history and trajectory chart featured on this page.
Is an FHA or Conventional loan more cost-effective in Charleston County, SC?
Choosing between FHA and Conventional depends on your down payment budget and credit score. For a typical home priced at $675,632 in Charleston County, SC, a standard 20%-down Conventional loan requires an upfront cash down payment of $135,126 but keeps your monthly payment lower at $3,036/mo (at 6.807% interest) with no monthly PMI. In comparison, an FHA loan requires only $23,647 (3.5% down) but has an estimated payment of $3,420/mo (at 5.987% interest) due to mandatory FHA mortgage insurance (MIP). Local Nuance: The typical local FHA loan amount of $651,985 falls comfortably within the local HUD FHA loan limit of $776,977 (1-unit), making FHA financing an exceptionally accessible, high-leverage entry point into the market.
What is the maximum conforming loan limit in Charleston County before needing a Jumbo loan?
The 2025 conforming conventional loan limit for a 1-unit property in Charleston County is $806,501. With a typical local home value of $675,632 in , a standard 20%-down mortgage requires a loan size of $540,506. Because this is within the $806,501 conforming threshold, buyers can qualify for standard conforming conventional financing with competitive rates.
How does the median home value in Charleston County, SC impact estimated mortgage payments?
The median home value in Charleston County, SC is estimated at $675,632. Buying a typical home here with a standard 20% down payment ($135,126) translates to an estimated starting monthly mortgage payment of $3,036 (principal and interest). Compared to the local area median household income of $95,207 ($7,934/mo), this basic housing payment represents approximately 38.3% of gross monthly household income. Because this housing cost exceeds the standard 36% lender DTI guideline, buyers in this high-value area may need larger down payments, lower debt balances, or co-borrower income to qualify.