Off-Grid Living in Ellis County, Oklahoma

I'll be upfront: Ellis County, Oklahoma is one of the harder places I've researched, because it simply doesn't seem to maintain a public-facing planning, zoning, or building department website. I searched thoroughly and kept running into pages for the other Ellis Counties (Kansas and Texas), which I did not use here. So a good chunk of this guide is "here's the state baseline, and here's who to call to confirm locally," rather than a confirmed county ordinance.

Zoning. I could not find a county zoning ordinance or map for Ellis County. Rural Oklahoma counties with small populations (this one is under 4,000 people, and state records describe it as agricultural and ranching country) very often skip countywide zoning entirely. That's consistent with what I'd expect here, but I have no official county page confirming it either way. If zoning exists at all, it would most likely come from the incorporated towns, Arnett, Shattuck, Gage, or Fargo, regulating within their own town limits, not the county governing unincorporated land.

Dwellings, tiny homes, RVs. Same story, no official county document addresses minimum dwelling sizes or full-time RV living. Not confirmed either way.

Building permits. I found no Ellis County building department page, so I can't tell you whether the county has adopted the state's IRC-based building code for unincorporated land or requires permits at all outside town limits. This needs a direct call.

Septic and composting toilets. Statewide, septic systems fall under the Oklahoma Department of Environmental Quality (DEQ). Ellis County has a listed Oklahoma State Department of Health county office, but I found no county-specific septic ordinance or fee schedule. Confirm directly with the county health office and DEQ.

Greywater and rainwater. No county rule found for either, so the Oklahoma state baseline applies by default: greywater reuse for irrigation is generally allowed without a permit below the state threshold, and rooftop rainwater collection for non-potable use is legal without a state permit.

Wells. This one I can speak to with more confidence, since it's set at the state level by the Oklahoma Water Resources Board (OWRB). Domestic-use wells (household use, farm animals up to normal grazing capacity, and up to three acres of garden/orchard/lawn irrigation) are exempt from OWRB water-use permitting and well-spacing orders, though they're still subject to anti-waste rules. The person or company drilling your well still needs to be OWRB-licensed, regardless of the domestic exemption. No county-specific well ordinance was found layered on top of this.

Utility disconnection. No official Ellis County source confirms whether hookup to utilities is required outside town limits. Given the apparent lack of a countywide building code, it's plausible off-grid living is unregulated in unincorporated areas, but I can't confirm that from an official source, and towns may set their own rules within their limits.

Bottom line: start with the County Clerk's office to find out who (if anyone) handles zoning and building in Ellis County, then go to the state health department liaison and DEQ for septic, and OWRB for well questions.