Off-Grid Living in Pike County, Mississippi

I'll level with you up front: Pike County, Mississippi (seat: Magnolia, largest city: McComb) doesn't have a lot of its off-grid rules spelled out in one tidy countywide document. A good chunk of what actually governs your options here is either handled by the State of Mississippi, or by the incorporated towns (McComb, Magnolia, Summit) rather than the county itself. I dug through what's publicly available and I'm telling you plainly where I found solid answers and where I didn't.

Zoning on unincorporated land is the biggest question mark. Pike County's own ordinance index (co.pike.ms.us/ordinances) lists broad categories like "Planning and Development," but I could not find a published zoning map or ordinance text covering unincorporated parts of the county. In Mississippi, zoning is a county or municipal decision, not a state one, and McComb runs its own separate zoning and permitting department. If your land is outside city limits, you genuinely need to call the Pike County Board of Supervisors or Chancery Clerk's office to find out what applies, because I couldn't confirm it from official sources.

Tiny homes, RVs, and full-time dwelling follow the same pattern: no county-specific rule found. Mississippi has no statewide tiny-home law, so this is decided locally, and I couldn't locate that local decision for unincorporated Pike County. McComb, again, has its own zoning/permits office that would handle this inside city limits.

Building permits are similarly murky at the county level. Mississippi doesn't mandate a statewide residential building code; adoption is a local call. McComb's Zoning, Inspections & Permits department actively issues building, electrical, plumbing, and mechanical permits. I found no equivalent published ordinance for unincorporated Pike County, so confirm directly with the county whether a permit is required outside city limits.

Septic and composting toilets are on firmer ground: this is regulated statewide by the Mississippi State Department of Health (MSDH) through its On-Site Wastewater program, not by Pike County itself. You'd go through a local environmentalist/county health department office for a soil and site evaluation and permit/recommendation, which also ties into getting a water meter.

Greywater isn't addressed separately in Mississippi law or in any Pike County ordinance I could find, so it falls under that same MSDH onsite-wastewater permitting umbrella, treat it as restricted/regulated rather than freely permitted.

Rainwater harvesting has no county restriction I could locate, so the state's generally permissive baseline applies. Same story with private wells: MSDH handles water sampling and site evaluation, and MDEQ oversees groundwater statewide, with domestic wells generally exempt from withdrawal permits, but the well must be drilled by a licensed contractor.

Going fully off-grid on utilities (no electrical hookup at all) isn't addressed by any Pike County ordinance I found, so it inherits the state-level position: off-grid generation is legal, but full disconnection can bump into utility or code requirements depending on which authority has jurisdiction over your parcel.

Bottom line: for anything land-use related outside McComb or another town, pick up the phone before you buy or build.