Off-grid site report

Sheridan County, WY

44.7972, -106.9562 · 3,760 ft elevation
Read this before you act on anything below. This is my researched starting point for Sheridan 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 rulesSheridan County, WY

Zoning & raw-land occupancy
RestrictedSheridan County has adopted its own zoning ordinance dividing the unincorporated county into districts (Urban Residential, Rural Residential, Agricultural, Commercial, Industrial, Airport, and special districts). The county Planning Department administers this; confirm your parcel's district before planning any off-grid project. source
Dwellings, tiny homes & RVs
Unclear - verifyNo countywide standard for tiny homes or RVs as permanent dwellings was confirmed. The zoning rules do prohibit manufactured/mobile home sales and storage in at least one special district (Acme), so treatment varies by district; ask the Planning Department directly. source
Building permits & codes
RestrictedSheridan County requires a building permit for new construction, additions, or change of use, and has adopted the International Building Codes. Fees apply per the county's fee schedule, but exact amounts were not confirmed and should come from Public Works. source
Septic & composting toilets
RestrictedSeptic permits are required statewide under Wyoming DEQ standards, but Sheridan County is the delegated local permitting authority, so all permits go through the county Public Works office. Composting toilet rules specific to the county were not confirmed. source
Greywater reuse
Unclear - verifyNo Sheridan County-specific greywater ordinance was found; this appears to inherit the Wyoming DEQ statewide permitting framework. Confirm with DEQ Water Quality Division if you have a specific system in mind. source
Rainwater harvesting
Generally allowedNo county ordinance restricting rainwater harvesting was found, and this follows the state baseline where no Wyoming law prohibits residential rainwater catchment.
Private wells & water rights
RestrictedGroundwater wells are permitted through the Wyoming State Engineer's Office, not the county; a permit is required before construction begins, and drilling and pump installation must be done by licensed contractors. source
Living disconnected from utilities
Generally allowedNo Sheridan County ordinance requiring utility hookups for occupancy was found, following the state baseline that allows off-grid power setups; building permit or occupancy conditions could still touch on this, so confirm with Public Works. source

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average
4.9 hrs/day
Worst month (sizes an off-grid array)
2.8 hrs/day
Yearly output per 1 kW of panels
1,402 kWh
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Weather1991-2020

Precipitation
14 in/yr
Snowfall
71 in/yr
Heating degree days
7,644 (severe)
Frost-free season
May 24 to Sep 22

How far help isstraight-line

Hospital
Sheridan Memorial Hospital
1.3 mi
Fire station
Sheridan Fire-Rescue
0.2 mi
Hardware store
Ace Home Center
1.2 mi
Grocery
Safeway
0.3 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 82801).

Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt

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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.