Montana
Buying Land in Beaverhead County, Montana
Montana's largest county by area runs almost entirely on unzoned, cattle-and-sheep-ranching land, with public land -- national forest and BLM -- covering roughly two-thirds of its 3.6 million acres. Land Services in Dillon administers a growth policy and subdivision rules, but there is, as of this writing, no zoning and no building-permit process to speak of.
No zoning, no building inspector -- for now
Beaverhead County is a clean example of the state hub's point that zoning is the exception in Montana, not the rule. According to the county's own Land Services office, Beaverhead currently has no zoning, no county building inspector, and no development-permit process -- a county planner updates commissioners annually on building trends, but there's no permit-and-inspection regime behind that data the way there would be in a zoned county. The county does administer a Growth Policy (most recently updated and adopted by the County Commission on November 7, 2022) and Subdivision Regulations (most recently revised in 2024), both handled through Land Services in Dillon -- so land divisions and their required certificates of survey are reviewed, even though land use itself generally is not.
That said, this status is actively under discussion. The county's Planning Board has been developing a community survey specifically to gauge support for adding development permits and zoning to the county's toolkit, according to local reporting. If you're buying land here with a longer time horizon, it's worth asking Land Services directly whether that effort has advanced -- an unzoned county today is not a guarantee of an unzoned county in five years.
Two-thirds public land: ranching on a landscape you don't fully own
Beaverhead County covers 5,571 square miles -- Montana's largest county by land area -- but roughly 69% of its acreage is publicly owned, spanning the Beaverhead-Deerlodge National Forest, BLM rangeland, the Red Rock Lakes National Wildlife Refuge, and state trust land. That leaves a private-land base in the neighborhood of 30-35% of the county's roughly 3.57 million acres. For a ranching-oriented buyer, this isn't incidental: much of the county's cattle and sheep operations depend on public-land grazing allotments and permits that attach to, but are legally separate from, the deeded base property, and a listing's stated acreage may understate the operation's actual grazing capacity (or overstate what a buyer would actually control without an existing allotment). That same checkerboarded ownership also means a parcel bordered by public land isn't automatically reachable by road -- see the landlocked-property page below for how access easements actually get secured here.
The Beaverhead Valley's ranching economy dates to the 1860s and was, at times, the largest wool-exporting operation in Montana. Much of the irrigated hay and pasture land that supports that livestock base runs on water stored and released from Clark Canyon Reservoir, built by the Bureau of Reclamation between 1961 and 1964 as part of the East Bench Unit of the Pick-Sloan Missouri Basin Program -- a federal irrigation-storage project, not a natural lake, and one whose releases follow an operating agreement rather than natural flow. If a property's irrigated status depends on Clark Canyon delivery, confirm the parcel's actual place in that delivery system and its underlying DNRC water right (see the state hub) rather than assuming "irrigated" means the same thing it would on a different river.
A cooling but real building market, and a flood-map update in progress
Beaverhead County tracks its own building activity closely, and the trend is informative: the county issued its most septic permits of the past decade in 2022 (95, a figure that includes replacement systems), and lot creation peaked the same year at 20 new lots and seven approved minor subdivisions. By 2025, that had cooled to 12 new lots and three minor subdivisions -- still real activity, just off the post-COVID peak. Certificates of survey (the filings required for most land divisions) numbered 34 in 2025, up from 27 in 2024, suggesting land-splitting activity hasn't disappeared even as new-home construction has slowed.
Separately, Beaverhead County, the City of Dillon, and the Town of Lima have been working with Montana DNRC and FEMA since 2015 on an update to the county's flood insurance rate maps, with proposed new maps released for public review in January 2025 and a standard 90-day appeal period for residents to submit additional data. If you're evaluating a parcel near a river, creek, or drainage anywhere in the county, ask Land Services (which serves as the local floodplain administrator) whether it falls under the current effective FEMA map or the newer proposed one -- flood-zone status and any related insurance requirement can shift once the update is finalized.
Who to Call Before Buying Land in Beaverhead County
Beaverhead County has no separate GIS office identified in public sources -- parcel-level GIS and cadastral data run through the statewide Montana Cadastral system, and Land Services can direct you to the current parcel viewer. Property assessment in Montana is handled by the state Department of Revenue's county field office rather than a locally elected county assessor; the Clerk and Recorder's office is a separate, county-run function for deed and survey records.
Planning & Zoning
Beaverhead County Land Services
Growth Policy questions, subdivision review, certificates of survey, and confirming current zoning/permit status (the county has no zoning or building-permit process as of this writing, but that is under active discussion).
Floodplain / Stormwater
Beaverhead County Land Services -- Local Floodplain Administrator
Whether a specific parcel falls under the current effective FEMA flood map or the map update proposed in January 2025, and floodplain permit requirements.
Environmental Health
Beaverhead County Environmental Health / Sanitarian
Septic (wastewater system) permitting, site evaluations, and environmental-health complaints.
Assessor / Property Tax
Montana Department of Revenue -- Beaverhead County Field Office
Property appraisal, classification, and assessed-value questions for a specific parcel (Montana property valuation is a state Department of Revenue function, not a locally elected assessor).
Recorder / Clerk / Land Records
Beaverhead County Clerk and Recorder
Recorded deeds, mortgages, certificates of survey, and plat history for a specific parcel.
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Get local guidanceTopics Specific to Beaverhead County
Sources
- Land Services (Planner) — Beaverhead County, Montana Government (accessed 2026-09)
- Environmental Health (Sanitarians) — Beaverhead County, Montana Government (accessed 2026-09)
- Beaverhead County's post-COVID building boom slowing — Bozeman Daily Chronicle (accessed 2026-09)
- Planning board finalizing survey on growth policy, zoning — Dillon Tribune (accessed 2026-09)
- Beaverhead County Growth Policy (adopted November 7, 2022) — Beaverhead County, Montana Government (accessed 2026-09)
- Proposed Beaverhead County Flood Maps Reflect Changes to Local Flood Risk, Insurance Rates — Federal Emergency Management Agency (accessed 2026-09)
- Beaverhead County, Montana (public/private land acreage) — Beaverhead County, Montana Government (accessed 2026-09)
- F ounded in 1865, Beaverhead County is Montana's... (2022 Extension program highlights) — Montana State University Extension (accessed 2026-09)
- Clark Canyon Dam — Wikipedia, citing U.S. Bureau of Reclamation project data (accessed 2026-09)
- Local Floodplain Administrators contact list — Montana DNRC (accessed 2026-09)
Last reviewed 2026-09