Off-grid site report

Saline County, IL

37.7296, -88.5351 · 358 ft elevation
Read this before you act on anything below. This is my researched starting point for Saline County, IL, 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 rulesSaline County, IL

Zoning & raw-land occupancy
Unclear - verifyI couldn't find an official Saline County, Illinois zoning ordinance or map online. Illinois counties aren't required to have countywide zoning, so it's genuinely unclear here, call the county government line to ask whether Planning & Zoning even applies to your parcel. source
Dwellings, tiny homes & RVs
Unclear - verifyNo official Saline County document on minimum dwelling size, tiny homes, or RV residency turned up in my research, so this falls back to the murky Illinois state baseline. Confirm directly with the county before you buy or build anything unusual. source
Building permits & codes
Unclear - verifyI couldn't locate a Saline County building-permit ordinance or building department page, so I can't say for certain whether the county has adopted its own code or defers to Illinois's statewide code administered by the Capital Development Board. Ask the county directly which applies. source
Septic & composting toilets
Generally allowedSeptic systems are permitted statewide in Illinois under rules from the Illinois Department of Public Health, and day-to-day permitting is normally handled by the local county health department. I couldn't confirm Saline County Health Department's specific procedures, so call them to get the local details. source
Greywater reuse
Unclear - verifyI found no official IDPH or Saline County rule specifically addressing residential greywater reuse. Treat this as unresolved and ask the Saline County Health Department how they want greywater handled.
Rainwater harvesting
Unclear - verifyNo official Saline County or Illinois source in my research specifically authorized or restricted residential rainwater harvesting, so I'm calling this unconfirmed. Check with the county before relying on it as a sole water source.
Private wells & water rights
Generally allowedPrivate wells are permitted in Illinois under the statewide Water Well Construction Code administered by the Illinois Department of Public Health, with permits usually issued through the local county health department. I couldn't confirm Saline County's specific well-permitting office, so call the county health department to get set up. source
Living disconnected from utilities
Unclear - verifyI found no Saline County ordinance requiring hookup to grid electric or municipal water and sewer, but that doesn't mean one doesn't exist buried in local zoning or building rules. Confirm with the county before planning to live fully off-grid.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average
4.9 hrs/day
Worst month (sizes an off-grid array)
3.3 hrs/day
Yearly output per 1 kW of panels
1,388 kWh
JFMAMJJASOND

Weather1991-2020

Precipitation
47 in/yr
Snowfall
4 in/yr
Heating degree days
4,505 (moderate)

How far help isstraight-line

Hospital
Harrisburg Medical Center
0.7 mi
Fire station
Harrisburg Fire Department
0.6 mi
Hardware store
Murphy's Do It Center
1.1 mi
Grocery
Walmart Supercenter
0.2 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 62946).

Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt

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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.