Kuna's Price Gap Isn't a Discount. It's an Unfinished Sewer Line.

Kuna homes sold for a median of $445,000 through March 2026, according to Census-based reporting picked up by regional news outlets. Ada County's median over the same window was $539,990. That's a gap of roughly $94,000, or about 17 percent. Buyers moving down the price list from Eagle, Meridian, or central Boise tend to read that gap as pure savings, the kind of number that closes the conversation before it starts.

It isn't pure savings. It's the visible half of a trade. The land that makes Kuna cheap is the same land the city is racing to serve with sewer lines, water rights, and commercial tax base, and that race isn't finished. A buyer comparing Kuna's median to Ada County's median is really comparing a built-out market to one still building the infrastructure that would let it function on its own.

What's actually behind the number

Kuna was the 11th fastest-growing city in the country from July 2024 to July 2025, up 8.4 percent, a pace that landed it a spot on GOBankingRates' 2026 list of national boomtowns. The city's economic development administrator, Michelle Covert, told Idaho Business Review the growth is intentional rather than accidental, framing it as a city still early in its story. New business licenses back that up on paper: 111 issued in 2023, 130 in 2024, then 313 in 2025.

Housing permits tell a parallel story, but a bigger one. Kuna has issued permits for 4,475 new homes since 2021. Through May 8, 2026, the city had already permitted 520 new single-family homes, putting it on pace to beat 2025's total of 1,101. New-home sales in Kuna now account for roughly one in three new-home sales across all of Ada County, despite Kuna holding only about 6 percent of the county's population.

Here's the full picture in one place.

That last row is the one worth sitting with. Rooftops are arriving in Kuna far faster than the city's share of the county's population would predict. The question a careful buyer should ask isn't whether Kuna is growing. It's whether the services, jobs, and infrastructure a rooftop needs are growing at the same rate.

The 20 acres that ran into a pipe, not a zoning fight

In the summer of 2026, a developer proposed Northlake Park, a 20-acre commercial project at the corner of Columbia Road and Linder Road, split into seven lots. Six of those lots averaged a little over 43,000 square feet each. The seventh, at more than 420,000 square feet, was meant to anchor the site.

That anchor lot can't be built out yet. Kelli Black, an engineer with Bailey Engineering working on the project, told BoiseDev the area does not have the sewer capability to handle a business of that size. Kuna's Planning and Zoning Commission recommended denial in May, and the application was set to go before the city council on August 18.

This is a useful data point precisely because it isn't dramatic. Nobody fought Northlake Park over what it would look like or whether commercial development belongs on that corner. The limiting factor was a pipe. When the infrastructure conversation in a fast-growing city comes down to sewer capacity on a single commercial parcel, that's a sign the buildout of jobs and retail is trailing the buildout of homes, not running alongside it.

The same water is being asked to do more

Kuna's open land isn't just attracting subdivisions. Meta and Diode Ventures have both secured approval for large-scale data centers built on former Kuna farmland. Diode's proposed project, Gemstone Technology Park, spans 620 acres and could bring as many as 1,200 construction jobs to the city.

Kuna's Public Works Director, Adam Wenger, told BoiseDev that water rights limitations mean the southern part of Ada County is likely tapped out for additional data centers of this scale. Paul Arrington, executive director of the Idaho Water Users Association, raised a separate concern to the same outlet: growth in the data center sector is drawing scrutiny from irrigators already managing short water years, and any new large user needs to work within the state's existing water rights system rather than around it.

Wenger was careful not to overstate the risk. Asked whether the data centers were accelerating any future water shortage, he told BoiseDev, "I don't think so, but it's to be determined." That's an honest answer, and it's also the answer of someone managing a resource that's being asked to do more work than it used to, from more directions than it used to.

None of this means Kuna's water supply is in trouble today. It means the same agricultural water rights that once irrigated farmland, and that now show up as pressurized irrigation lines in new subdivisions, are also the resource industrial users are competing for. A buyer's household water bill isn't affected by a data center. The pace at which the city can keep saying yes to new commercial and industrial growth without straining capacity might be.

Why the commute math still matters

Kuna's own economic development office has, for years, put the share of working residents who commute outside city limits for their jobs at around nine in ten. That figure predates this year's growth spike, but nothing in the current data suggests it has reversed. Housing permits are outpacing commercial permits. Northlake Park's anchor lot is stalled on sewer capacity. The data centers bringing large numbers of jobs to the area are still under construction or in the approval pipeline.

A homebuyer comparing Kuna's median price to Ada County's median price is, in effect, comparing a city where most residents work somewhere else. Toll Brothers' new Tribute at Valor community, a 358-home project priced from the mid-$400,000s, sits about 11 minutes east of Kuna's center by car and roughly the same distance from Meta's data center site. That's a reasonable commute inside Kuna. It says nothing about the commute to Boise or Meridian, where most of the valley's jobs still are.

What this means for your search

If you're pricing Kuna against a similarly sized home closer to Boise or Meridian, the $94,000 gap is real money. It's worth treating as a trade rather than a windfall. A few questions are worth asking before you write an offer on anything in Kuna:

• Is the specific subdivision served by city sewer today, or is it waiting on capacity the way Northlake Park's anchor lot is?
• What does your actual daily commute look like, not the distance on a map, but the drive time to wherever your job actually is?
• Is the builder's pressurized irrigation and water assessment already in place, or tied to water rights still being sorted out as farmland converts to rooftops?
• Are there commercial or retail projects planned near the subdivision, and if so, are they fully approved or still working through the same sewer and infrastructure questions as Northlake Park?

None of this is a reason to avoid Kuna. It's a fast-growing city with real momentum, a shrinking price gap is not guaranteed to stay this wide once commercial infrastructure catches up, and the answer to some of these questions might work in your favor. The point is that the $94,000 gap on the median isn't sitting there for no reason. It's the visible edge of a city still building the parts that don't show up in a listing photo.

Kuna's price gap is worth taking seriously, but only once you know what's built into it. I walk relocating buyers through the sewer service maps, the real commute math, and the specific subdivision's utility commitments before they write an offer, not after. If you're weighing a move to Kuna or anywhere else in the Treasure Valley, Kent Davies can put that research together for your specific address, starting with the free relocation guide.