Off-Grid Living in Hickory County, Missouri

Hickory County, Missouri is about as light-touch as it gets when it comes to county government telling you what you can build or how you can live on your own land. Here's what I found digging through official sources.

Zoning and building codes: essentially none at the county level. Hickory County has no countywide zoning ordinance and, per a Missouri state data table on adopted building codes, no residential or energy code on the books either. Missouri counties can only adopt zoning if voters approve it under state law (Chapter 64 RSMo), and there's no sign Hickory County has done that. This means in unincorporated parts of the county, you likely won't run into a county building inspector or zoning officer asking for permits on a tiny home, cabin, or RV. That said, I want to be careful here: this is an absence of evidence, not a guarantee. If you're inside the town limits of Hermitage or another incorporated place, that town could have its own building or zoning rules, and you'd need to check with that town hall directly.

Septic is the one place the county is genuinely strict. The Hickory County Health Department enforces a wastewater ordinance that requires written authorization before you construct, install, modify, repair, or operate an on-site septic or wastewater system. Anyone who designs, installs, modifies, repairs, or cleans these systems in the county also has to register with the County Health Officer. I saw a secondhand reference to a possible exemption for properties of three acres or less, but I couldn't confirm that language against the ordinance itself, so treat that as unverified and call the Health Department directly to ask. Missouri's Department of Health and Senior Services (DHSS) sets the statewide floor for septic permitting and does allow some residential exemptions, but the county administers its own program on top of that.

Greywater doesn't have a dedicated Hickory County rule that I could find, so it's genuinely unclear whether it falls under the septic ordinance's general wastewater language or is left alone. Ask the Health Department before setting up a greywater system.

Rainwater harvesting looks fine. I found no county ordinance restricting it, so the general Missouri legal environment, which doesn't prohibit collecting rainwater on your own property, applies without any local wrinkle I could identify.

Wells are governed by the state, specifically Missouri DNR's Water Well Drillers Act and well construction rules. The county doesn't seem to have its own well permitting layer, but the Health Department does offer well-water testing services if you want your water checked.

Living off-grid generally (solar, no municipal water/sewer hookup) appears permitted since there's no zoning or building code to trigger utility-connection requirements. The septic ordinance is the real gatekeeper you'll deal with.

Bottom line: at the county level, Hickory County leaves you a lot of room, but the septic ordinance is real and enforced, and anything inside an incorporated town is a different story entirely.