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Safe Rate LocalGranite County index·Updated July 3, 2026

15-Year Fixed Mortgage Rates in Granite County

5.863%Rate
5.873%APR
$1,787monthly mortgage payment
$0points (0 pts)
Loan Amount $302,462; and Downpayment $75,615
Local Fast Facts
30039
Typical Home Value
$378,077
Area Median Income
$57,292
Estimated Property Taxes
$2,142/yr
Est. Property Tax Rate
0.57%
Conforming Loan Limit (1-unit)
$806,501
FHA Loan Limit (1-unit)
$524,225
Jumbo Threshold (1-unit)
> $806,501
Average Loan to Value
61.0%

Select your Scenario

20% Down · 15-Year

5.863%

No PMI · fastest payoff

Payment$2,530/mo
Down$75,615
Loan$302,462

10% Down · 15-Year

5.863%

Faster equity

Payment$3,031/mo
Down$37,808
Loan$340,269

5% Down · 15-Year

5.863%

Buy sooner

Payment$3,199/mo
Down$18,904
Loan$359,173

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15-Year Fixed Mortgage Details for Granite County

Faster payoff · Lower rate · Higher monthly payment

Interest Rate
5.863%
today's benchmark
Est. Monthly P&I
$3,890/mo
$302,462 loan, 20% down
Total Interest
$397,671
over 15 years
Interest Savings vs 30yr
$391,977
lifetime savings
⚠️
Higher monthly payment — $856/mo more than a 30-year
The lower rate and shorter term are offset by a higher required payment. Best suited for borrowers with strong, stable income.
  • 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 Granite County, MT?

Today's leading benchmark rate for 15-year fixed rates in Granite County, MT is 6.807% (with an estimated monthly payment of $3,034). Calibrated directly to Granite County, MT'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 Granite County, MT?

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 Granite County, MT 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 Granite County, MT?

Choosing between FHA and Conventional depends on your down payment budget and credit score. For a typical home priced at $378,077 in Granite County, MT, a standard 20%-down Conventional loan requires an upfront cash down payment of $75,615 but keeps your monthly payment lower at $3,034/mo (at 6.807% interest) with no monthly PMI. In comparison, an FHA loan requires only $13,233 (3.5% down) but has an estimated payment of $3,300/mo (at 5.995% interest) due to mandatory FHA mortgage insurance (MIP). Local Nuance: The typical local FHA loan amount of $364,844 falls comfortably within the local HUD FHA loan limit of $524,225 (1-unit), making FHA financing an exceptionally accessible, high-leverage entry point into the market.

What is the maximum conforming loan limit in Granite County before needing a Jumbo loan?

The 2025 conforming conventional loan limit for a 1-unit property in Granite County is $806,501. With a typical local home value of $378,077 in , a standard 20%-down mortgage requires a loan size of $302,462. 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 Granite County, MT impact estimated mortgage payments?

The median home value in Granite County, MT is estimated at $378,077. Buying a typical home here with a standard 20% down payment ($75,615) translates to an estimated starting monthly mortgage payment of $3,034 (principal and interest). Compared to the local area median household income of $57,292 ($4,774/mo), this basic housing payment represents approximately 63.5% 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.