Off-Grid Living in Marshall County, Mississippi

I've been digging into what off-grid living actually looks like on paper in Marshall County, Mississippi, and the short version is: this county is more regulated than a lot of rural Mississippi counties, so don't assume "rural Mississippi" automatically means "wide open."

Zoning. Unlike many counties in the state that skip zoning entirely, Marshall County has adopted a countywide Zoning Ordinance administered by its own Zoning, Planning & Building Department. Land is split into districts (A, A-R, R-E, R-1, R-2, and PUD, among others), and what you can do with raw land depends on which district it's in. The full ordinance and development standards are posted on the county's website, and I'd read the district your parcel sits in before making any plans.

Dwellings. The county's own FAQ states that any mobile/manufactured home placed on a lot can be no older than 8 years old, which is a real, specific local rule, not a state default. I did not find a Marshall County provision specifically addressing tiny houses on wheels or long-term RV living as a primary residence, so treat that as unconfirmed and assume the more restrictive state norm (most Mississippi counties don't sanction RVs as permanent dwellings) unless the Zoning, Planning & Building Department tells you otherwise.

Building permits and codes. The county has adopted the 2018 International Building Code and 2018 IRC, and its Building/Codes office issues permits and inspects. Owner-occupants can pull their own permit, but the county requires that electrical, plumbing, and mechanical work be done by contractors licensed in Mississippi, even on an owner-permitted job.

Septic and utilities. This is where Marshall County adds its own layer on top of the state. Mississippi State Department of Health (MSDH) runs septic/on-site wastewater permitting statewide. But Marshall County passed a zoning amendment requiring that before any utility (water or sewer) makes a permanent connection to a structure, the owner must show both a county building or mobile-home permit AND an MSDH document confirming an approved septic system. That's a real county-level gate on hookups, worth knowing if your off-grid plan involves any utility connection at all.

Greywater and rainwater. I found no Marshall County-specific ordinance on either one. Greywater looks like it falls under MSDH's general on-site wastewater framework by default. Rainwater harvesting (barrels, cisterns) doesn't appear restricted at the county level, so the state's generally permissive stance applies, but confirm with the county if you're doing something larger-scale.

Wells. Well drilling and pump installation are licensed at the state level through MDEQ's Office of Land and Water Resources. Ordinary domestic wells are generally exempt from the state's groundwater withdrawal permit requirement, which mainly targets larger-diameter wells. I didn't find a county-specific well ordinance.

Full disconnection. Nothing I found bans going off-grid electrically outright, but the county's utility-hookup rule shows it actively ties any utility connection to permit and septic compliance. If your land is inside Holly Springs, Byhalia, or another incorporated town, that town's own zoning/building office takes over from the county, so double-check jurisdiction first.