Off-Grid Living in Murray County, Oklahoma

I'll level with you up front: I went looking for an official Murray County, Oklahoma zoning or building department website, and I couldn't find one. What's out there online is mostly third-party directory sites that I don't trust as sources, not actual county government pages. So a good chunk of this guide leans on Oklahoma state rules, with clear notes on where the county picture is genuinely unknown.

Zoning. Oklahoma counties set their own zoning individually, and plenty of rural counties have no countywide zoning code at all. I couldn't confirm whether Murray County has one. That means land outside the towns of Sulphur, Davis, or Dougherty could be lightly regulated, or not, I just don't have an official source to say either way. If you're looking at raw land, call the Murray County Clerk's office and ask directly who handles land use in unincorporated areas.

Dwellings, tiny homes, RVs. Same story, no official county page addressing this. Oklahoma has no statewide tiny-home statute, so whatever rules exist would come from the county or from Sulphur/Davis city hall specifically.

Building codes. This one's clearer at the state level. The Oklahoma Uniform Building Code Commission (OUBCC) sets the minimum statewide codes, currently transitioning from 2018 to 2024 International code editions, with local governments responsible for enforcement. Whether Murray County itself runs an active permit office, versus deferring to state minimums with limited local enforcement (common in rural Oklahoma), isn't something I could confirm.

Septic and composting toilets. This is a state matter, not a county one. Oklahoma DEQ regulates individual and small on-site sewage systems statewide under its administrative rules, and you need an Authorization to Construct from DEQ before installing or modifying a system. Percolation tests have to be done by someone registered through the Department of Health. I found no Murray County ordinance layering on additional rules.

Greywater and rainwater. No county-level restrictions turned up in my research, so these fall under the same general state DEQ framework, and appear permitted.

Wells. Domestic well permitting is handled by the Oklahoma Water Resources Board at the state level. No Murray County-specific wrinkle showed up.

Utility disconnection. Can't confirm this one either way for the county, since I don't have a zoning or building page to check for occupancy requirements. It would likely depend heavily on whether you're inside Sulphur or Davis city limits, where municipal code would apply, versus unincorporated county land.

Bottom line: for septic, wells, and building codes, you're dealing with well-documented state rules. For zoning and utility hookups, Murray County's own position is genuinely unclear from public records, and your best move is a phone call to the county clerk to find the right office.