Off-Grid Living in Roosevelt County, Montana

I dig into off-grid rules county by county, and Roosevelt County, Montana is one of those places where the honest answer is: a lot is still unconfirmed, and you need to make some phone calls before you buy land or start building.

Zoning. Roosevelt County doesn't appear to have a countywide Growth Policy in place. In fact, the county has received a Community Development Block Grant specifically to help it create one, and under Montana law (counties are enabled to adopt growth policies under MCA 76-1-601), a Growth Policy is usually the precursor to comprehensive zoning. That suggests unincorporated county land may have limited or no zoning outside the five incorporated towns (Bainville, Culbertson, Froid, Poplar, Wolf Point), each of which may set its own municipal rules. I couldn't find an official page confirming a countywide zoning resolution one way or the other, so this needs a direct call to the county's Land Planning office before you assume anything about your parcel.

Dwellings, tiny homes, RVs. No Roosevelt County page addresses tiny homes or RV living specifically. Absent local rules, the state baseline (IRC Appendix Q for foundation tiny homes, RVs treated as a separate category) is the default assumption, but confirm with Land Planning since local practice can vary.

Building permits. I could not confirm whether Roosevelt County has adopted its own building code and permitting program or defers to the state exemption for single-family homes. This is a call-the-courthouse question.

Septic and composting toilets. The county does employ a Sanitarian through its departments, and in Montana that role typically administers septic permitting under state-delegated authority. No county-specific composting toilet policy turned up, so the state DEQ baseline likely applies, but confirm with the Sanitarian directly.

Greywater and rainwater. No county-specific ordinances were found for either. Both likely fall back to Montana's state administrative rules: greywater reuse indoors is generally allowed if disposed through a compliant system, and basic rooftop rainwater collection for personal non-potable use isn't statutorily prohibited. Still, confirm with the county Sanitarian since local health officials can apply extra scrutiny.

Wells. Private wells in Montana are a state matter, not a county one. Drillers are licensed by the state, and the DNRC's exempt-well framework applies statewide, Roosevelt County included. No county-specific well ordinance exists.

Utility disconnection. Nothing in Roosevelt County's public materials requires grid connection for a private single-family home. This is unclear at the county level and would likely hinge on subdivision covenants or case-by-case health department review, not a blanket ordinance.

Bottom line: Roosevelt County looks relatively permissive on paper mostly because it hasn't published detailed rules yet, not because it has formally blessed off-grid living. Treat every "not confirmed" item above as a to-do call before you commit money to land here.