Off-grid site report
Roger Mills County, OK
35.6090, -99.6711 · 1,992 ft elevationRead this before you act on anything below. This is my researched starting point for Roger Mills County, OK, 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 rulesRoger Mills County, OK
Zoning & raw-land occupancy
Unclear - verifyNo official Roger Mills County zoning ordinance or map was found; Oklahoma zoning is set at county or municipal level, and what guidance exists suggests zoning applies at the town level (Cheyenne, Reydon, Hammon, Strong City), not countywide. Not confirmed by an official source. source
Dwellings, tiny homes & RVs
Unclear - verifyNo official county or town ordinance on tiny homes, minimum dwelling size, or RV occupancy was found. Oklahoma has no statewide tiny-home law, so this is a local gap.
Building permits & codes
Unclear - verifyNo official Roger Mills County building-permit page or code-adoption ordinance was found. The state Uniform Building Code Commission sets a minimum baseline counties may adopt, but whether the county has adopted a code isn't confirmed. source
Septic & composting toilets
RestrictedOklahoma DEQ is the sole statewide permitting authority for septic systems under OAC Title 252, Chapter 641, and a soil evaluation by a qualified professional is required. No county-specific septic ordinance or local health department exists in Roger Mills County; residents rely on the state program. source
Greywater reuse
Generally allowedGreywater reuse follows the Oklahoma state baseline; no Roger Mills County ordinance was found modifying or restricting it.
Rainwater harvesting
Generally allowedRainwater harvesting follows the Oklahoma state baseline; no county-specific restriction or permit requirement was found.
Private wells & water rights
Generally allowedOklahoma law exempts domestic wells from OWRB permitting, though non-domestic wells require OWRB authorization before drilling. No Roger Mills County rule adds further requirements. source
Living disconnected from utilities
Unclear - verifyNo official Roger Mills County ordinance was found requiring or exempting grid utility connection. Given the lack of a documented building code, the state's general non-mandatory-hookup posture likely applies, but this is not confirmed at the county level.
Sun30-year normals
- Peak-sun hours, annual average
- 6.0 hrs/day
- Worst month (sizes an off-grid array)
- 4.8 hrs/day
- Yearly output per 1 kW of panels
- 1,693 kWh
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Weather1991-2020
- Precipitation
- 25 in/yr
- Snowfall
- 12 in/yr
- Heating degree days
- 4,232 (moderate)
- Frost-free season
- Apr 12 to Oct 23
How far help isstraight-line
- Hospital
Roger Mills Memorial Hospital - 0.0 mi
- Fire station
Hammon Fire Department - 16.3 mi
- Hardware store
Elk Supply - 21.1 mi
- Grocery
Walmart Supercenter - 21.6 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 73628).
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.