Treasure Valley Market Update: September 21 to September 27, 2026
As September comes to a close, the Treasure Valley housing market is showing some signs of the typical shift we expect as we move deeper into fall.
This week brought fewer new listings in both Ada and Canyon Counties, while pending activity moved in different directions between the two markets. Here is a quick look at what changed.
📍 Ada County
Ada County saw 256 new listings this week, down 13% from the previous week.
At the same time:
204 homes sold, down 2%
$728,598 average listing price, down 2%
$681,600 average sold price, up 2%
$579,950 median listing price, essentially unchanged
$560,000 median sold price, down 1%
2,279 active listings, essentially unchanged
212 pending sales, up 10%
2.2 months of inventory, down 1%
The number that stands out this week is pending activity. Even with fewer new homes hitting the market, pending sales increased 10%.
For sellers, that is a good reminder that buyers are still active heading into October. For buyers, inventory remains relatively steady, so there are still plenty of homes to consider without the same pace typically associated with the spring and early summer market.
Broader September data also characterizes Ada County as a relatively balanced market, which fits with what we are seeing in these weekly numbers.
📍 Canyon County
Canyon County slowed more noticeably this week, with 96 new listings, down 31%.
This week also brought:
89 homes sold, down 11%
$534,442 average listing price, down 9%
$554,049 average sold price, up 19%
$440,000 median listing price, down 5%
$446,000 median sold price, up 8%
1,233 active listings, down 2%
95 pending sales, down 3%
2.4 months of inventory, down 2%
One thing worth noting is the jump in average sold price. A 19% increase in a single week does not necessarily mean Canyon County home values suddenly jumped 19%. Weekly averages can move significantly depending on the mix of homes that happened to close during that particular period.
The broader September picture still points to a relatively balanced Canyon County market, so looking at several weeks of data provides much better context than any single price movement.
What Does This Mean Heading Into October?
The biggest takeaway this week is that activity is still happening even as fewer homes come onto the market.
Ada County actually saw pending sales increase while new listings declined. Canyon County experienced a quieter week overall, but inventory remains available for buyers.
As we move farther into fall, buyers may find fewer new listings appearing each week, while sellers are competing for a somewhat smaller pool of active buyers. That makes pricing, presentation and understanding the competitionespecially important for anyone listing a home this season.
And for buyers who are serious about moving, fall can be worth watching. A quieter market does not mean there are no opportunities. It simply means the market may look different than it did during the busier spring and summer months.
We will continue tracking both counties each week as we head into October.
House of Palmer | Idaho Real Estate
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