Bolthole Index

Montana · Off-grid & homestead potential

Silver Bow County

66Index Score / 100
#24 of 56 in Montana

Silver Bow County scores 66/100 on the Bolthole Index, a strong county profile. Its strengths are a stronger property-autonomy legal backdrop and manageable long-term carry cost.

Found land here? Start a Property Hunt →

County locator

Silver Bow County in Montana

66
County map
Silver Bow County highlighted among the Montana counties · colored by Index score

How Silver Bow County scores

Seclusion65100% ev.
Self-Sufficiency43100% ev.
Admin Boringness4290% ev.
Durability61100% ev.
Property Autonomy83100% ev.
Carry Cost83100% ev.

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 →

$293kTypical home
1.1%Property tax
$2,572Land / acre
18.1"Annual rain
17.2% of yrsSevere drought
0.1 / yr (+0.1)Mid-century 100°F days
19.3 daysMid-century dry spell
1.08" (+10%)Mid-century 1-day rain
1.2×Wildfire change factor
100%Forward climate coverage
$1,713Home insurance / yr
2.5% / yrInsurance growth
0.8%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
25,145People within 30 min
317,087People within 2 hr
39,730Radius comparison (15 mi)
50.6People / sq mi
51.4%Federal land
36.9%Land at 15% slope or less
6.7%Septic soil without severe limits
29,446 acWorkable land screen
56.1%Wooded land
25.7 tonsBiomass / forest ac
39.9°FAvg temp

Scout Silver Bow County

Camp here before you commitBook a few nights nearby on Hipcamp →Already own land here?Earn money hosting campers — get $100 when you become a Hipcamp host →

Some links are affiliate or referral links — we may earn a commission, at no cost to you.

Property hunt

Find land. Bring the promising ones back.

Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.

Each button opens a current land search for Silver Bow County. Listing sites control their own results and filters.

Analyze a property
Add setup-cost allowances

Use rough quotes or placeholders. Blank fields count as $0.

Working estimate

land + entered setup costs
Asking $ / acre
Setup allowance
All-in $ / acre

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

Parcel due diligence

0/8 checked

Saved properties and checklist progress stay on this device. Bolthole Index does not receive them.

Building & land-use rules in Silver Bow County

What it takes to build here — permits, zoning, and septic — scouted from Silver Bow County’s own official sources.

  • Building permitRequired

    The consolidated City and County of Butte-Silver Bow operates a Building Code Department that adopts and enforces the International Residential Code and issues residential building permits countywide.

    Butte-Silver Bow Building & Code Enforcement
  • County zoningYes

    Zoning requirements are set out in Butte-Silver Bow Municipal Code Title 17, administered by the City-County Planning Department and Zoning Board of Adjustment.

    Butte-Silver Bow Zoning
  • Septic permittingButte-Silver Bow Environmental Health Division

    The Butte-Silver Bow Environmental Health Division regulates and permits all onsite wastewater (septic) systems under BSB Wastewater Regulations and DEQ Circular 4.

    Butte-Silver Bow Septic Permits and Information
  • Owner-builderNot published

    Not published on an official source — confirm with the county.

  • Building inspectionsNot published

    Not published on an official source — confirm with the county.

  • Occupancy certificateNot published

    Not published on an official source — confirm with the county.

  • Septic permitNot published

    Not published on an official source — confirm with the county.

  • Septic inspectionNot published

    Not published on an official source — confirm with the county.

  • Off-grid sanitationNot published

    Not published on an official source — confirm with the county.

Always confirm current rules with Butte-Silver Bow Building & Code Enforcement before you buy or build. Scouted Jul 2026 from official county sources.

Water rights & wells in Silver Bow County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Montana’s water agency.

Actively managed

This basin is under active state management — new water use is scrutinized, though a domestic well is usually still allowed.

Household wellExempt up to a limit

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)

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.

Living off-grid in Silver Bow County, Montana

Is Silver Bow County a good place to live off-grid or homestead?

Silver Bow County scores 66/100 on the Bolthole Index, a strong county profile. Its strengths: a stronger property-autonomy legal backdrop and manageable long-term carry cost.

Do you need a building permit in Silver Bow County, Montana?

Silver Bow County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Butte-Silver Bow Environmental Health Division. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Silver Bow County, Montana?

Land in Silver Bow County runs about $2,572 per acre, based on the latest county data.

What is the water situation in Silver Bow County?

Silver Bow County gets about 18.1" of rain a year, with severe drought in roughly 17.2% of years. On water rights, Silver Bow County lies in the Butte Alluvial & Bedrock Controlled Groundwater Area — ~8.5 sq mi in/around Butte (Superfund/mining contamination); all new wells require a permit and water-quality controls..

How remote is Silver Bow County?

A representative private-land location has about 25,145 people within a 30-minute drive and 317,087 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 Silver Bow County means bringing your own water and power. The kit we’d start with:

WaterCrystal QuestFilter any source — well, rain, or creek — to drinking-clean.PowerBluettiSolar generators and home battery backup for living off the grid.

These are affiliate links — we may earn a commission, at no cost to you.

How Silver Bow compares in Montana

Compare side-by-side →See all 56 Montana counties ranked →