Montana · Off-grid & homestead potential
Missoula County scores 66/100 on the Bolthole Index, a strong county profile. Its strengths are a stronger property-autonomy legal backdrop and deep seclusion — about 2,499 people within a 30-minute drive. The trade-offs: limited workable ground: 16.3% at 15% slope or less and 0.7% without a severe conventional-septic limitation.
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Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →
Scout Missoula County
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Property hunt
Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.
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Working estimate
A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.
Before an offer
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What it takes to build here — permits, zoning, and septic — scouted from Missoula County’s own official sources.
Missoula County requires a Residential Building Permit for new 1-2 unit dwellings and enforces the International Residential Code through its Building Division (a Montana DLI-certified building program).
Missoula County Public Works - Building Permits & Inspections ↗Missoula County requires a Land Use/Zoning Compliance Permit and administers zoning through its Planning, Development and Sustainability Department.
Missoula County Building Projects & Permit Guide - Research ↗Missoula Public Health administers onsite septic/wastewater permits under the Missoula City-County Health Code; certified installers and a county septic permit are required.
Missoula Public Health - Septic ↗Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Always confirm current rules with Missoula County Public Works - Building Permits & Inspections before you buy or build. Scouted Jul 2026 from official county sources.
Whether a new home can legally get its own water here — the sub-state groundwater regime, from Montana’s water agency.
New water supply here generally requires a permit, an offset, or buying an existing right — a household well is not automatic.
Montana's exempt-well exception (85-2-306 MCA) was tightened after Upper Missouri Waterkeeper v. DNRC (2024), and from Jan 1, 2026 appropriators must file a Notice of Intent with DNRC before putting exempt groundwater to use.
Limit: 35 gpm or less AND ≤10 acre-ft/yr; a combined appropriation exceeding 10 acre-ft needs a permit regardless of flow rate
Montana DNRC — Water Rights Permit Exceptions (Exempt Wells) ↗Bitterroot-drainage CGWA near Missoula; the exempt-well exception does not apply — any new groundwater use requires a DNRC permit.
Montana DNRC — Controlled Ground Water Areas ↗Prior-appropriation state (first in time, first in right). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Montana state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.
Missoula County scores 66/100 on the Bolthole Index, a strong county profile. Its strengths: a stronger property-autonomy legal backdrop and deep seclusion — about 2,499 people within a 30-minute drive. Watch-outs: limited workable ground: 16.3% at 15% slope or less and 0.7% without a severe conventional-septic limitation.
Missoula County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Missoula City-County Health Department (Missoula Public Health), Environmental Health. Rules change and cities within the county differ — always confirm with the county before you buy or build.
Land in Missoula County runs about $2,276 per acre, based on the latest county data.
Missoula County gets about 29.7" of rain a year, with severe drought in roughly 13% of years. On water rights, Missoula County lies in the Hayes Creek Basin Controlled Groundwater Area — Bitterroot-drainage CGWA near Missoula; the exempt-well exception does not apply — any new groundwater use requires a DNRC permit..
A representative private-land location has about 2,499 people within a 30-minute drive and 322,681 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.
Off-grid gear
Going off-grid in Missoula County means bringing your own water and power. The kit we’d start with:
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