Off-grid site report
Jay County, IN
40.5695, -84.8411Read this before you act on anything below. This is my researched starting point for Jay County, IN, 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 rulesJay County, IN
Zoning & raw-land occupancy
RestrictedJay County has a countywide zoning and subdivision ordinance, enforced by the Jay County Building & Planning Department and Plan Commission, with defined districts like Agricultural/Residential and Rural/Residential. That means raw-land occupancy is governed by district use rules rather than left open, and towns like Portland, Dunkirk, Bryant, and Redkey can impose stricter rules where they conflict with the county baseline. source
Dwellings, tiny homes & RVs
RestrictedThe county ordinance has separate sections covering mobile homes, mobile home parks, and RVs as distinct regulated uses, so tiny homes and RVs aren't automatically treated as permanent dwellings. Indiana state law (IC 36-7-4-1106) does protect manufactured homes over 950 sq ft from being excluded where any other dwelling type is allowed, but I'd confirm exact permanent-occupancy rules for RVs and tiny homes with Jay County Building & Planning. source
Building permits & codes
Generally allowedJay County Building & Planning issues building and zoning permits and does inspections, working off Indiana's statewide IRC-based building code as the baseline. You'll need to go through this local office for plan review and inspections even though the underlying code is set at the state level. source
Septic & composting toilets
Generally allowedSeptic systems are allowed and regulated under Indiana's statewide onsite sewage rule (410 IAC 6-8.3), with the Jay County Health Department handling local permitting, site evaluations, and inspections. Composting toilets are also addressed through state guidance from the Indiana Department of Health, applicable here absent a stricter local rule. source
Greywater reuse
Unclear - verifyNo Jay County-specific greywater ordinance turned up in official sources, so this likely falls under the same state onsite sewage framework (410 IAC 6-8.3) administered by the Jay County Health Department. Best to call that office directly to confirm how they treat greywater systems. source
Rainwater harvesting
Unclear - verifyI found no Jay County ordinance addressing rainwater harvesting one way or another, and no statewide prohibition either. If you're plumbing collected rainwater into a structure, that would fall under state plumbing code, but for basic catchment/storage it's not confirmed there's any specific local rule, so ask Jay County Building & Planning to be safe.
Private wells & water rights
Generally allowedNo Jay County-specific well ordinance exists, so private wells are governed by the state framework under 312 IAC 13 and IC 25-39, administered through IDNR's well construction program. The Jay County Health Department is also a point of contact locally, but there's no separate county water authority.
Living disconnected from utilities
Unclear - verifyI didn't find any Jay County ordinance requiring you to hook up to grid utilities, so this isn't confirmed as separately regulated locally. One state rule to know: if a sanitary sewer is reasonably available, Indiana's onsite sewage program prohibits installing a septic system and requires connecting to the sewer instead, which would matter if you're near Portland or another town's sewer line. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.5 hrs/day
- Worst month (sizes an off-grid array)
- 2.7 hrs/day
- Yearly output per 1 kW of panels
- 1,307 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 40 in/yr
- Snowfall
- 28 in/yr
- Heating degree days
- 6,021 (cold)
- Frost-free season
- Apr 23 to Oct 17
How far help isstraight-line
- Hospital
Indiana University Health Jay Hospital - 11.7 mi
- Fire station
Geneva Volunteer Fire Dept. - 6.4 mi
- Hardware store
Habegger's Ace Hardware - 9.1 mi
- Grocery
M&M Market - 6.4 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 47326).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Jay County, IN?The rules above are the jurisdiction. The land check runs the parcel itself: flood zone, soils and septic suitability, wetlands, slope, access, climate, and these verdicts, from a parcel number or coordinates.
Check a parcel →Share or save this report:New report
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.
New here, or not sure where this fits? Start here walks through the whole thing in order.