If you’re buying a home in Idaho in 2026, it’s important to understand the current conforming loan limits. These limits, set by the Federal Housing Finance Agency (FHFA), affect how much you can borrow with a conforming loan backed by Fannie Mae or Freddie Mac. Staying within these limits can open the door to easier qualification and more competitive interest rates.
In this guide, we’ll break down the 2026 Idaho conforming loan limits, explain how they’re set, and show you what they mean for your homebuying journey.
2026 Conforming Loan Limits for Idaho
For 2026, the FHFA has increased the baseline conforming loan limit for a single-family home to $832,750. Most counties in Idaho fall under this standard limit. However, Teton County remains the exception and qualifies as a high-cost area, where the conforming loan limit rises to $1,249,125.
These limits apply to conventional loans that are eligible for purchase by Fannie Mae and Freddie Mac.
| County | 1 Unit | 2 Units | 3 Units | 4 Units |
|---|---|---|---|---|
| Ada County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Adams County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Bannock County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Bear Lake County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Benewah County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Bingham County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Blaine County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Boise County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Bonner County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Bonneville County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Boundary County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Butte County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Camas County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Canyon County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Caribou County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Cassia County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Clark County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Clearwater County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Custer County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Elmore County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Franklin County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Fremont County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Gem County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Gooding County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Idaho County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Jefferson County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Jerome County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Kootenai County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Latah County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Lemhi County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Lewis County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Lincoln County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Madison County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Minidoka County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Nez Perce County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Oneida County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Owyhee County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Payette County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Power County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Shoshone County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Teton County | $1,249,125 | $1,599,375 | $1,933,200 | $2,402,625 |
| Twin Falls County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Valley County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
| Washington County | $832,750 | $1,066,250 | $1,288,800 | $1,601,750 |
Breakdown of 2026 Conforming Loan Limits
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Standard (Baseline) Limit: $832,750
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High-Cost Area (Teton County only): $1,249,125
This means if you’re purchasing a home in Boise (Ada County), Coeur d’Alene (Kootenai County), or most other Idaho markets, the maximum conforming loan amount is $832,750. If you’re buying in Teton County, you can borrow up to $1,249,125 and still remain within conforming loan guidelines.
How Are Loan Limits Determined?
The FHFA sets conforming loan limits each year based on changes in average U.S. home prices. The Housing and Economic Recovery Act (HERA) of 2008 outlines the formula used.
Under this framework, FHFA evaluates whether 115% of a county’s median home value exceeds the national baseline limit. If it does, the conforming loan limit may be increased, capped at 150% of the baseline amount.
Teton County’s median home prices exceed this threshold, which qualifies it as a high-cost area in 2026 and allows for higher conforming loan limits compared to the rest of the state.
View mortgage rates for
June 6, 2026
Why Do Loan Limits Matter?
Loan limits define the maximum amount you can borrow with a conforming loan, which is a mortgage eligible for purchase by Fannie Mae or Freddie Mac. Staying within these limits can help you secure more favorable loan terms and simplify the approval process.
Benefits of Staying Within Loan Limits:
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Lower Interest Rates: Conforming loans typically offer more competitive interest rates than jumbo loans.
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Easier Qualification: Conforming loans often allow more flexible underwriting standards, including lower minimum credit scores and higher allowable debt-to-income ratios.
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Lower Down Payment Options: Many conforming programs allow down payments as low as 3% to 5%, compared to 20% or more commonly required for jumbo loans.
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Access to Assistance Programs: Remaining within conforming limits can make you eligible for certain state or federal assistance programs that jumbo loans do not allow.
Implications of Exceeding Loan Limits:
If your loan amount exceeds the conforming loan limit in your county, you’ll need a jumbo loan. Jumbo loans generally involve:
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Stricter Qualification Standards: Higher credit score requirements, lower allowable debt-to-income ratios, and more extensive financial documentation.
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Higher Interest Rates and Fees: Because jumbo loans carry greater lender risk, they often come with higher rates and additional costs.
Understanding conforming loan limits helps you choose the right financing strategy and avoid unnecessary expenses.
Frequently Asked Questions
What is the 2026 conforming loan limit for a single-family home in Idaho?
The baseline conforming loan limit for 2026 is $832,750. In Teton County only, the limit increases to $1,249,125.
How do conforming loan limits affect refinancing options?
Conforming loan limits apply to refinance transactions as well. To qualify for conventional refinance programs with competitive rates and streamlined approval, your new loan amount generally must stay within the conforming loan limits for your county.
Are FHA and VA loan limits the same as FHFA conforming loan limits in Idaho?
No. FHA and VA loans have separate loan limit guidelines that may differ from FHFA conforming loan limits and can vary by county. These program-specific limits affect the maximum loan amounts available through FHA or VA financing.
Questions About Getting a Mortgage in Idaho?
Knowing your county’s 2026 conforming loan limits can help you plan your purchase and secure better financing terms. Whether you’re buying in Boise, northern Idaho, or Teton County, JVM Lending’s mortgage experts are here to guide you every step of the way.
Contact us today, we’re available seven days a week to help you find the right mortgage for your needs.
