Off-grid site report

McCurtain County, OK

33.8963, -94.8043 · 479 ft elevation
Read this before you act on anything below. This is my researched starting point for McCurtain 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 rulesMcCurtain County, OK

Zoning & raw-land occupancy
Unclear - verifyI couldn't find any McCurtain County planning or zoning department listed on the county's official offices page, which suggests there's no countywide zoning ordinance. Oklahoma law only gives counties zoning power if the Board of County Commissioners has formally adopted it, and I found no evidence they have, so confirm directly with the County Commissioners' office before assuming anything goes on unincorporated land. source
Dwellings, tiny homes & RVs
Unclear - verifyThere's no McCurtain County rule I could find covering tiny homes, manufactured housing, or RVs as residences. This falls back to whatever the nearest incorporated town (Idabel, Broken Bow, Valliant, Haworth) requires, or to no rule at all in unincorporated areas, so I'd call the county commissioner's office for your district to be sure.
Building permits & codes
Varies locallyOutside of Idabel, which has its own building inspector, I found no countywide building code or permit office for McCurtain County. If you're building in unincorporated county land, check with the County Commissioners; if you're inside a town limit like Idabel, that town's building department governs. source
Septic & composting toilets
RestrictedSeptic systems in Oklahoma, including McCurtain County, are regulated at the state level by the Oklahoma Department of Environmental Quality under the On-Site Sewage Treatment and Disposal Act, with the McCurtain County Health Department serving as the local coordination point. I found no county-specific composting toilet allowance, so treat it as governed by the state DEQ baseline and confirm any alternative system with the county health department. source
Greywater reuse
Generally allowedI didn't find a McCurtain County greywater ordinance, so this appears to simply follow Oklahoma's statewide allowance for residential greywater reuse with no added county restriction.
Rainwater harvesting
Generally allowedNo McCurtain County rule limiting rainwater collection turned up in my research; it looks like the county follows the state's general allowance for non-potable rooftop rainwater harvesting.
Private wells & water rights
Generally allowedI found no McCurtain County-specific well ordinance, so private domestic wells here appear to fall under the Oklahoma Water Resources Board's statewide exemption for domestic use, though it's worth confirming directly with OWRB for your parcel.
Living disconnected from utilities
Varies locallyWith no confirmed countywide zoning or building code office in McCurtain County, I found no requirement to hook up to utilities in unincorporated areas, but incorporated towns like Idabel or Broken Bow may have their own municipal rules that I could not confirm officially, so check with the specific town hall if you're inside city limits.

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)
3.8 hrs/day
Yearly output per 1 kW of panels
1,398 kWh
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Weather1991-2020

Precipitation
52 in/yr
Snowfall
2 in/yr
Heating degree days
3,199 (moderate)
Frost-free season
Apr 4 to Nov 1

How far help isstraight-line

Hospital
McCurtain Memorial Hospital
1.0 mi
Fire station
Broken Bow Fire Dept.
9.8 mi
Hardware store
Ace Hardware
9.9 mi
Grocery
Walmart Supercenter
0.1 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 74745).

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.