The median home price in Canyon County reached $385,000 in February 2026, a 9.2% increase from the same month last year and the fastest annual appreciation rate of any county in the Treasure Valley, according to data released by the Intermountain Multiple Listing Service. The surge is driven largely by homebuyers who have been priced out of neighboring Ada County — where the median home now exceeds $485,000 — and are looking westward to Nampa, Caldwell, and Middleton for more affordable options.
Canyon County’s housing inventory has simultaneously tightened to just 2.1 months of supply, well below the 4-6 months that economists consider a balanced market. The combination of rising prices and shrinking inventory has created intense competition among buyers, with homes in desirable Nampa and Middleton neighborhoods frequently receiving multiple offers within days of listing.
Canyon County Housing Prices by Community
Price increases varied across Canyon County’s cities. Middleton, which sits at the geographic bridge between Ada and Canyon counties and offers proximity to Eagle and Star, saw the steepest appreciation at 11.3% year-over-year with a median of $425,000. Nampa rose 8.7% to a median of $395,000, while Caldwell — historically the most affordable option in the Treasure Valley — increased 9.8% to $345,000.
Even at these elevated prices, Canyon County remains significantly more affordable than Ada County. A homebuyer choosing Nampa over Boise saves approximately $70,000 on a median-priced home, translating to roughly $450 less per month in mortgage payments at current interest rates. That affordability gap has been the primary driver of Canyon County’s population boom, which has added roughly 8,000 new residents annually over the past three years.
“Canyon County is essentially absorbing the demand that Ada County can’t accommodate at prices working families can afford,” said Amanda Chen, president of the Boise Regional Realtors association. “The challenge is that as more buyers move west, Canyon County prices are catching up — and the families who’ve always lived here are feeling that pressure.”
Impact on Long-Time Canyon County Residents
Rising home values are a double-edged sword for Canyon County homeowners. Existing homeowners have seen significant equity gains — the average Canyon County home has appreciated over $80,000 in value since 2023. But for renters, first-time buyers, and families on fixed incomes, the price increases have made homeownership increasingly difficult in communities where affordability was once a defining characteristic.
Average rents in Nampa and Caldwell have risen 14% over the past year, with a typical two-bedroom apartment now renting for $1,350-1,500 per month. The Idaho Housing and Finance Association reports that approximately 38% of Canyon County renters are spending more than 30% of their household income on housing — the federal threshold for housing cost burden.
New Construction and Future Supply
Builders are responding to the demand with significant new construction activity across Canyon County. Building permits for single-family homes increased 22% in the first quarter of 2026, with the largest concentration of new subdivisions in southern Nampa, the Star-Middleton corridor, and areas along Highway 20/26 between Caldwell and Nampa.
However, new construction alone cannot close the supply-demand gap. Material costs, labor shortages, and increasingly lengthy permitting timelines mean that builders cannot scale production fast enough to meet the estimated 3,000 new households forming annually in Canyon County.
What Comes Next
Real estate analysts expect Canyon County home prices to continue rising through 2026, though at a moderating pace as mortgage rates stabilize. Prospective buyers can monitor listings through the IMLS website or by working with a licensed Canyon County real estate agent. The Canyon County Assessor’s office provides property value information at canyoncounty.id.gov. First-time buyer assistance programs are available through the Idaho Housing and Finance Association at ihfa.org. For statewide housing market analysis, visit Idaho News.