Off-grid site report

Pondera County, MT

48.2376, -112.4211 · 4,003 ft elevation

Read this before you act on anything below. This is my researched starting point for Pondera County, MT, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.

The local rulesPondera County, MT

Zoning & raw-land occupancy

Varies locallyUnincorporated Pondera County is not zoned, per the county's own planning documents, but the City of Conrad and Town of Valier each have their own municipal zoning ordinances with residential zones and, in Valier's case, minimum lot sizes. source

Dwellings, tiny homes & RVs

Unclear - verifyNo Pondera County ordinance specifically on tiny homes or RVs as dwellings was found; the state baseline likely applies. The county Sanitarian does license RV parks and trailer courts. source

Building permits & codes

Unclear - verifyNo county building-permit page for single-family homes was found; Montana generally exempts single-family homes from state building code unless a county opts in, and no evidence of Pondera County opting in was found. Confirm directly with the county Planning Board. source

Septic & composting toilets

Generally allowedPondera County has adopted Montana's minimum state requirements for sewage disposal systems, administered locally by the county Sanitarian. source

Greywater reuse

Unclear - verifyNo Pondera County-specific greywater ordinance was found; this defaults to the state DEQ wastewater framework administered locally by the Sanitarian. source

Rainwater harvesting

Generally allowedNo Pondera County or Montana rule prohibiting basic rooftop rainwater collection for personal non-potable use was found.

Private wells & water rights

Generally allowedNo county-specific well ordinance was found; private domestic wells fall under Montana DNRC's state exempt-well framework, with the county Sanitarian involved during subdivision review. source

Living disconnected from utilities

Unclear - verifyNo countywide rule requiring grid or utility hookup for a private home was found, though state-driven subdivision regulations require water/sanitation info on new plats. source

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 4.6 hrs/day
Worst month (sizes an off-grid array): 2.4 hrs/day
Yearly output per 1 kW of panels: 1,319 kWh

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Weather1991-2020

Precipitation: 12 in/yr
Heating degree days: 7,764 (severe)
Frost-free season: May 18 to Sep 23

How far help isstraight-line

Hospital Logan Health – Conrad: 21.7 mi
Fire station Valier Volunteer Fire Department: 9.2 mi
Hardware store: none within range
Grocery Curry's Market: 9.3 mi

From OpenStreetMap. Road miles will be longer, often much longer in hill country.

Plan this spot

These open with this location's real numbers already filled in (ZIP 59432).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 21, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.