Boise Housing Market 2026: Near-Record Ada County Prices, Tight Supply, the Micron Timeline, and What It Means for Sellers

The Boise housing market 2026 story is neither a boom nor a correction. Ada County prices are pressing back toward their April 2022 record while the number of houses for sale keeps shrinking, and the two facts are connected.

Propcash keeps every source separate and labeled. Boise Regional Realtors reports what closed through the Intermountain MLS, Zillow models a typical value across all houses, and Freddie Mac publishes the weekly mortgage rate. Those are three different measurements.

What is the Boise housing market doing in 2026?

Ada County prices are rising on falling inventory. The median single-family sales price reached $595,000 in August 2026, up 6.9% from $556,522, while active listings fell 10.6% to 1,979 (Boise Regional Realtors, August 2026, from the Intermountain MLS as of September 8, 2026).

Sales volume rose with it. Closed sales came in at 955 for the month, up 14.8% year over year, and pending sales reached 1,269, up 11.2%.

Source: Boise Regional Realtors, Ada County single-family market report, August 2026, drawn from the Intermountain MLS as of September 8, 2026.

July ran hotter still. The July 2026 median was $602,000, up 9.5% from $550,000, which put it within a few hundred dollars of the county record of $602,250 set in April 2022 (Boise Regional Realtors, July 2026).

Why does the monthly median jump while the year-to-date median barely moves?

The two figures cover different spans and different houses. August's median rose 6.9% year over year, but the year-to-date median through August was $568,000, up only 1.4% from $559,900 across the same eight months of 2025.

One month of closings is a small sample that swings on which price tiers happened to settle. Eight months smooths that out, so a seller reading only the headline number can overestimate what the year has done.

New construction sits inside the headline figure

Boise Regional Realtors publishes two versions of the county report each month. One covers all single-family houses. The other covers existing resale only, stripping out newly built houses.

In August 2026 the all-houses median was $595,000, up 6.9%. The existing resale median was $579,900, up 3.6% (Boise Regional Realtors, August 2026). Year to date, the all-houses median was $568,000 against $564,900 for resale.

The resale series runs below the all-houses series in both windows. That means newly built houses closed at higher prices than existing ones, and they pulled the headline county median up with them.

Days on Market and Pending Sales as Demand Signals

Both signals point the same direction: buyers are moving faster than they were a year ago. Ada County single-family houses spent a median of 37 days on market in August 2026, down from 41, and pending sales rose 11.2% to 1,269 (Boise Regional Realtors, August 2026).

July was faster again, at 34 median days and 1,383 pending sales, a 17.3% gain. Pending sales lead closings by roughly a month, so a rising pending count usually shows up as rising closed volume next month.

Days on market is narrower than it sounds, because it counts only the stretch from listing to accepted contract. It leaves out the weeks of cleaning, repairs, and photography beforehand, and the weeks a financed buyer typically needs afterward to close.

What 2.4 Months of Supply Means at the Table

Months supply measures how long the current listings would last at the current sales pace, and 2.4 months is thin by Ada County's own history. The county carried 3.0 months in August 2025, so supply tightened 19.8% in a year.

The county's own history gives that number context. Ada County inventory peaked at 5,198 houses in July 2007 and bottomed at 269 in January 2021 (Boise Regional Realtors, August 2026). Today's 1,979 sits between them.

For a seller, thin supply generally means less pressure to discount a clean, financeable house. It does not remove condition risk. A buyer using a mortgage still needs the property to survive an appraisal and an inspection.

Ada County Home Prices Against Canyon County and Zillow

Ada County home prices run roughly $157,000 above Canyon County's on the same monthly measure. In July 2026, Ada County's median single-family sales price was $602,000 while Canyon County's was $444,995, up 3.7% from $429,000 (Boise Regional Realtors, Canyon County, July 2026).

Canyon County also moves slower and carries more cushion. Its July days on market was 41 against Ada's 34, and it held 2.7 months of supply against Ada's 2.4 on 1,201 active listings.

What Zillow's index measures instead

Zillow's Home Value Index models a typical value across an entire housing stock, whether or not a house sold. A board median is the midpoint of houses that actually closed. The two should never be averaged or presented as one figure.

Source: Zillow Home Value Index city and state files, values as of July 31, 2026. The Boise metropolitan figure was $497,096, up 0.9%, over the same period.

Eagle is the only entry falling year over year, Meridian's typical value tops Boise's, and Caldwell and Nampa anchor the valley's lower tier.

Mortgage Rates and What Buyers Can Carry

Borrowing costs rose over the past year, which works against the price gains. The 30-year fixed-rate mortgage averaged 6.76% for the week of September 10, 2026, up from 6.71% the prior week and 6.35% a year earlier (Freddie Mac Primary Mortgage Market Survey, September 2026).

Boise Regional Realtors flagged the same pressure in July, noting that renewed inflation had pushed rates to 6.58%, "their highest levels in nearly a year" (Boise Regional Realtors, July 2026 market report).

Both axes moved against the buyer at once. The Ada County median rose 6.9% while the national rate rose more than a third of a percentage point. A buyer financing the median house now carries a larger balance at a higher rate.

That squeeze shows up elsewhere. The same report cited ATTOM data showing more than 227,000 US properties with foreclosure filings between January and June 2026, a 21% increase over 2025. Among states with at least 500 filings, Idaho posted the steepest increase, up 59%.

The Micron Fab Timeline in Southeast Boise

Micron describes two leading-edge fabs in Boise creating over 17,000 jobs, with DRAM output at the first Idaho fab scheduled to begin in 2027 (Micron, September 2026). The site sits in Southeast Boise.

Micron reported that in spring 2026 the fab reached a construction milestone called blowdown, which pressurizes the cleanroom so manufacturing equipment can move in. The company also cites up to $6.4 billion in CHIPS Act direct funding across its Idaho, New York, and Virginia sites.

None of that is a price forecast. A construction schedule tells you when workers arrive, not what any house will sell for. What it tells a Southeast Boise owner is that job-related moving dates are likely to cluster around 2027.

Boise Housing Stock, Block by Block

What you own in Boise matters more than the county median, because the city's housing stock spans more than a century. Ada County's $595,000 median covers Boise, Meridian, Eagle, Star, and Kuna together.

These are descriptions of housing stock, not price claims. Neighborhood-level monthly medians are too small a sample to report responsibly.

• North End (83702): Boise's oldest neighborhood, built largely from the 1900s through the 1930s, including the Harrison Boulevard and Hyde Park historic districts. Expect plaster, original windows, and older wiring.
• The Bench (83705 and 83709): the raised terraces south of downtown, built out mostly with 1940s through 1960s ranches. A rental-heavy value tier where deferred maintenance is common.
• Southeast Boise (83716 and 83706): Boise State, Bown Crossing, Harris Ranch, Barber Valley, and the Micron site, with stock ranging from mid-century to brand new.
• West Boise (83704 and 83709): the Franklin, Cole, Ustick, and Maple Grove corridors, dominated by 1970s through 1990s subdivisions now at the age where systems need replacing.
• The Foothills and northeast edge: wildland-urban interface ground where insurance availability shapes the sale. That problem has its own guide: selling a house in an Idaho wildfire zone.

What does the Boise housing market 2026 mean if you need to sell?

It depends on your situation, because the county averages hide very different outcomes. Thin supply and 37-day medians describe a clean, financeable house. Four common Boise sellers do not own one.

The owner with a dated house competing against builder inventory

Roughly half of Ada County's listed single-family inventory in August 2026 was not existing resale stock. Total listings were 1,979 while resale-only listings were 991 (Boise Regional Realtors, August 2026).

A 1970s West Boise ranch with original systems is shopped against houses that have never been lived in. Idaho also requires a signed, dated property disclosure form within 10 days of accepting an offer (Idaho Code § 55-2509), and the buyer then has three business days to rescind. Our guide to Idaho seller disclosure requirements covers those clocks.

The heir settling an estate

An inherited Boise house usually has to clear probate before it can be sold. Idaho's small-estate affidavit reaches personal property only, so it does not transfer a house.

Meanwhile the estate pays taxes, insurance, and utilities on a vacant property every month it waits. An heir often holds a saleable asset with no fast way to reach it, and a firm closing date can do more good than a higher asking price.

The owner inside the trustee's sale window

Idaho foreclosures move on a fixed non-judicial clock, and the usable window sits before the sale. The notice of sale is mailed at least 120 days ahead of the sale date. The borrower may cure the default and reinstate the loan within 115 days of the recorded notice of default (Idaho Code § 45-1506).

After a trustee's sale there is no redemption period in Idaho. Selling inside that window preserves any equity, and rising Ada County prices mean there is often more of it than an owner expects. The full timeline is in our guide to stopping foreclosure in Idaho.

The relocating owner on a hard date

A 37-day median looks comfortable until you add the rest of the calendar. Preparation, appraisal, and underwriting stack up on either side of it.

Relocation sellers near Boise State or the Micron site are often working to a start date that will not move. The useful question is not what the house might fetch in a perfect spring, but what can close before that date.

Where a direct cash sale fits

Propcash is a direct cash homebuyer, founded in 2026 and based in Nashville. We buy houses ourselves as the buyer, so a seller works with the decision-maker instead of waiting on a lender. Cash transactions can close in as few as 7 days, and sellers pick the closing date.

A Propcash sale can fit a house needing work an appraiser would flag, an estate that needs a firm date, or a foreclosure clock that is running. It often means no repairs, no cleaning, and no showings. If listing is the better move for your situation, we will tell you that too.

To compare a number against a listing estimate, you can get a cash offer on your Boise house at no cost. You can also see how a direct sale works on our Boise cash home buyer page or across the Idaho cash buyer overview.

Frequently Asked Questions

What is the median home price in Ada County in 2026?

Boise Regional Realtors reported an Ada County median single-family sales price of $595,000 in August 2026, up 6.9% from $556,522 in August 2025. The year-to-date median for 2026 was $568,000, up 1.4% over the same stretch of 2025. The monthly figure sits below the county record of $602,250 set in April 2022. All of those figures come from the Intermountain MLS as of September 8, 2026.

Is the Boise housing market a seller's market in 2026?

Ada County carried 2.4 months of single-family supply in August 2026, down from 3.0 months a year earlier, with 1,979 active listings against 2,213 the previous August. Supply that thin generally favors sellers of financeable houses in good condition. It does not erase condition risk, because a buyer using a mortgage still needs the house to pass an appraisal and an inspection.

How long does it take to sell a house in Boise right now?

Ada County single-family houses spent a median of 37 days on market in August 2026, improved from 41 days a year earlier, according to Boise Regional Realtors. Existing resale houses moved faster, at a median of 30 days. Days on market counts the listing period only, so it excludes the weeks of preparation beforehand and the financed closing afterward.

How does the Micron fab affect the Boise housing market?

Micron describes two leading-edge fabs in Boise creating over 17,000 jobs, with DRAM output at the first Idaho fab scheduled to begin in 2027. The company reported a cleanroom blowdown milestone in spring 2026, a step that prepares the building for manufacturing equipment. That is a construction and hiring schedule, not a price forecast, and it concentrates in Southeast Boise rather than across the whole county.

Why is Zillow's Boise value lower than the Ada County median sales price?

The two numbers measure different things and should never be combined. Zillow's Home Value Index models a typical value across the entire housing stock of the city of Boise, whether or not a house sold, and stood at $507,649 as of July 31, 2026. The Boise Regional Realtors median is the midpoint of houses that actually closed across all of Ada County, which includes Meridian, Eagle, Star, and Kuna.

Does a cash sale make sense in the Boise housing market in 2026?

It depends far more on the individual house and the seller's deadline than on the county average. A financeable Ada County house in good condition sold in a median of 30 days in August 2026, and Propcash will say so when listing looks like the stronger move. A direct cash sale tends to fit a house needing repairs a lender would flag, an estate in probate, a pre-foreclosure file inside the trustee's sale window, or a move on a fixed date.