Buying Land in Teton County, Idaho

Average density zoning: a genuinely different way of measuring what's buildable

Most counties tell you a minimum lot size and you work from there. Teton County's Land Development Code does something different in nearly every residential and agricultural district: it sets an average density ratio rather than a fixed minimum. The Rural Agriculture (RA-35) district, which covers much of the county's unincorporated agricultural land, targets an average of one dwelling unit per 35 acres; the Rural Neighborhood (RN-5) district targets one unit per 5 acres but allows individual lots as small as one acre. The practical effect is that a large parcel's actual subdivision potential depends on a proposed layout, not a single number -- a 140-acre RA-35 tract could become four 35-acre lots, or one 120-acre lot plus four 5-acre clustered lots, or other combinations, as long as the overall density stays within the district's ratio.

There are also separate Area of City Impact (AOI) zoning districts around Driggs, Victor, and Tetonia -- land inside these boundaries is subject to a hybrid of city and county review even though it's still unincorporated, with its own lot-size standards (for example, an AOI-2.5 district carrying a 2.5-acre minimum). Before valuing any Teton County parcel on a per-acre or per-lot basis, get the parcel's specific zoning district and, if it's a larger tract, ask Teton County Planning & Zoning for how the average-density calculation would actually apply to a subdivision concept -- don't assume a number from a neighboring parcel or an old listing carries over.

Short-term rentals: three different rulebooks, now overlaid by a brand-new state law

If a short-term rental income stream is part of the plan for a Teton Valley property, the rules genuinely depend on which jurisdiction the parcel sits in. Driggs requires an annual STR permit with an $80 initial fee and $50 renewal, mandates a safety inspection and a local representative reachable within 30 minutes, and collects an 8% local lodging tax on top of state taxes. Victor similarly requires a business license and collects its own 8% lodging tax. Unincorporated Teton County takes a different approach entirely: no STR-specific license or lodging tax, but STR standards -- registration, parking, occupancy limits tied to septic system capacity, and quiet hours -- are built into the Land Development Code itself.

That whole picture changed on July 1, 2026, when Idaho's new statewide short-term rental preemption law (House Bill 583, signed by the governor in March 2026) took effect. It bars cities and counties from requiring STR-specific licensing fees, owner-presence, professional property management, extra insurance, or occupancy reporting, and reclassifies short-term rentals as an ordinary residential use for zoning and building-code purposes -- local governments can still enforce basic life-safety standards like smoke detectors and occupancy limits under the building code, but not much beyond that. Because this page was researched only weeks after the law took effect, treat any Driggs, Victor, or Teton County STR ordinance detail above as a description of the rules as they existed before July 2026, and confirm directly with the relevant jurisdiction which provisions still stand.

A commuter and second-home market tied to Jackson Hole's economy

Teton Valley's growth isn't speculative chatter -- it shows up in Census data and local market reports alike. The Census Bureau put the county's population at roughly 13,254 as of mid-2025, a nearly 14% increase since the 2020 census, with an owner-occupancy rate around 81%. A meaningful share of that growth is functionally an extension of the Jackson, WY economy across Teton Pass: roughly 22% of employed Teton County, ID residents commute to jobs in Jackson, where housing costs are even higher and land use is far more constrained. Local market reports for 2025 showed single-family home sales up 13% year-over-year with the median sale price climbing over 20% to roughly $1.1 million and total dollar volume up 46% to about $302 million -- figures that reflect a resort-adjacent market, not a typical agricultural-Idaho county, and worth weighing against how remote or improved a specific parcel actually is before assuming comparable land values.