Off-Grid Living in Jackson County, Mississippi

I've been digging through Jackson County, Mississippi's official pages to figure out what off-grid living actually looks like here, and the short version is: this county is more regulated than a lot of rural Mississippi, because unlike many counties in the state, Jackson County has adopted countywide zoning.

Zoning first. The Jackson County Zoning Department administers a countywide Zoning Ordinance, adopted under the state's enabling law (Mississippi Code Section 17-1-1 through 17-1-27), for unincorporated areas. That's an important distinction: if your land is inside Pascagoula, Gautier, Moss Point, or Ocean Springs city limits, you're dealing with that city's own zoning and building department, not the county. I couldn't confirm from what I found exactly how each zoning district treats raw-land occupancy or off-grid structures specifically, so that's a call-and-ask situation with the Zoning Department.

Dwellings. Mobile homes go through a formal Mobile Home Placement Permit process tied to the county's Zoning Ordinance and building/fire/plumbing/electrical codes. That process also loops in wastewater: if there's no existing septic system in continual use, the state health department or a licensed engineer has to inspect before placement. I did not find confirmation on how the county treats tiny homes on wheels (as RVs, as mobile homes, or something else), so ask the Building Department directly before you buy or build one.

Building codes are real here: the county Building Department enforces the 2018 International Building Code for new construction, with permit categories for residential, mobile home placement, and commercial work.

Septic and wastewater run through the state framework (Mississippi State Department of Health) with the Jackson County Health Department handling local perc tests and site evaluations. Composting toilets would fall under this same state on-site wastewater program, but I found no county-specific composting toilet rule.

Greywater has no separate county carve-out that I could find. Mississippi doesn't have a distinct statewide greywater framework either, so it defaults to being treated like regular wastewater requiring an approved system.

Rainwater harvesting looks fine, I found no county restriction on rain barrels or cisterns, though I couldn't confirm whether the zoning ordinance has any setback or height rule for cistern structures.

Wells get referenced in the mobile home permit paperwork, which routes water-supply evaluation through the county Health Department, but I didn't find county-specific drilling permit or setback rules beyond that, so the state's licensed-well-driller framework is likely your baseline.

Full utility disconnection isn't clearly addressed. The mobile home electrical hookup requirements reference National Electric Code four-wire service specs, implying the county expects grid-tied electric for permitted mobile homes. I have no confirmation on how (or whether) fully off-grid electrical setups get permitted for stick-built or manufactured homes here.

Bottom line: this is a county where you'll want to make phone calls before you buy land, not after.