Off-grid site report

Campbell County, WY

44.2910, -105.3140 · 4,367 ft elevation

Read this before you act on anything below. This is my researched starting point for Campbell County, WY, 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 rulesCampbell County, WY

Zoning & raw-land occupancy

Varies locallyCampbell County has no countywide zoning, but most subdivisions are zoned and require a Zoning Certificate from the county's Planning & Zoning Division. Check the county's zoning web map for your specific parcel. source

Dwellings, tiny homes & RVs

Varies locallyWhat structures qualify as dwellings depends on the zoning district assigned to a parcel under Chapter 7 zoning rules; tiny-home and RV specifics were not confirmed from official sources, so ask Planning & Zoning directly.

Building permits & codes

RestrictedCampbell County's Building Division enforces its own construction rules (Chapter 4) countywide outside Gillette and Wright, requiring permits for building, plumbing, and electrical work, with stop-work authority for violations. source

Septic & composting toilets

RestrictedCampbell County holds delegated authority from Wyoming DEQ to permit residential small wastewater (septic) systems under 2,000 gallons per day; the county, not DEQ directly, issues these permits and inspections. source

Greywater reuse

Generally allowedNo Campbell County-specific greywater ordinance was found, so the Wyoming DEQ statewide permit-by-rule applies: notify DEQ's Water Quality Division, keep greywater onsite, avoid floodplains and runoff, and stay under the state volume limit. source

Rainwater harvesting

Generally allowedNo Campbell County ordinance on rainwater harvesting was found; the state baseline from the Wyoming State Engineer's Office applies, with no local restriction identified.

Private wells & water rights

RestrictedThe Wyoming State Engineer's Office regulates well permitting and construction statewide, and Campbell County's building permit application directs applicants to that office; shared wells require a notarized, recorded Shared Well Agreement filed with the county. source

Living disconnected from utilities

Varies locallyNo county rule mandates connection to grid utilities, and the county's building permit application accommodates wells and alternative power, though the exact content of the county's Alternative Power provisions was not confirmed.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.1 hrs/day
Worst month (sizes an off-grid array): 3.2 hrs/day
Yearly output per 1 kW of panels: 1,486 kWh

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Weather1991-2020

Precipitation: 17 in/yr
Snowfall: 59 in/yr
Heating degree days: 7,375 (cold)
Frost-free season: May 18 to Sep 26

How far help isstraight-line

Hospital Campbell County Memorial Hospital: 10.1 mi
Fire station Campbell County Fire Station Number 12: 5.4 mi
Hardware store The Home Depot: 8.6 mi
Grocery Smith's: 8.8 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 82727).

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 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.