Off-grid site report

Warren County, MS

32.3181, -90.8740 · 253 ft elevation

Read this before you act on anything below. This is my researched starting point for Warren County, MS, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.

The local rulesWarren County, MS

Zoning & raw-land occupancy

Unclear - verifyNo official, publicly posted zoning map or ordinance for unincorporated Warren County was found; the county directs questions to its Permit Division. Vicksburg has its own zoning code, but that only applies inside city limits. source

Dwellings, tiny homes & RVs

Varies locallyInside Vicksburg, RV occupancy is restricted to certain zones via special exception with a large minimum park size. For unincorporated county land, no ordinance on tiny homes or long-term RV living was found, so status is not confirmed there; ask the Permit Division directly. source

Building permits & codes

Unclear - verifyThe county Permit Division issues development permits, but whether a specific building code edition is currently enforced in unincorporated Warren County is not confirmed by an official source. source

Septic & composting toilets

Generally allowedThe Mississippi State Department of Health regulates onsite wastewater (septic) systems statewide, including Warren County, with application forms available through MSDH directly. source

Greywater reuse

RestrictedNo standalone greywater ordinance was found for Warren County; greywater is presumed to fall under the same MSDH onsite wastewater permitting framework as septic effluent. source

Rainwater harvesting

Unclear - verifyNo Warren County ordinance on rainwater harvesting or cisterns was found. Vicksburg's building code exempts small tanks from permitting, but that is city-only and not confirmed for the unincorporated county.

Private wells & water rights

Unclear - verifyNo Warren County-specific well permitting page was found; domestic well regulation in Mississippi is generally handled at the state level, with no additional county requirement located.

Living disconnected from utilities

Unclear - verifyNo official Warren County page was found addressing mandatory grid-tie requirements or restrictions on living fully off-grid.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.2 hrs/day
Worst month (sizes an off-grid array): 3.5 hrs/day
Yearly output per 1 kW of panels: 1,453 kWh

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Weather1991-2020

Precipitation: 56 in/yr
Snowfall: 0 in/yr
Heating degree days: 2,360 (mild)
Frost-free season: Mar 19 to Nov 15

How far help isstraight-line

Hospital Merit Health River Region: 4.8 mi
Fire station Station 8: 0.2 mi
Hardware store The Home Depot: 0.1 mi
Grocery Kroger: 0.5 mi

From OpenStreetMap. Road miles will be longer, often much longer in hill country.

Plan this spot

These open with this location's real numbers already filled in (ZIP 39180).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.