Off-grid site report
Peoria County, IL
40.6939, -89.5891 · 512 ft elevationRead this before you act on anything below. This is my researched starting point for Peoria 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 rulesPeoria County, IL
Zoning & raw-land occupancy
RestrictedPeoria County has its own countywide zoning ordinance administered by the Planning & Zoning Department; unincorporated land use is regulated by district, and variances go through the Zoning Board of Appeals. Municipalities like the City of Peoria have separate codes. source
Dwellings, tiny homes & RVs
Unclear - verifyNo specific county ordinance on minimum dwelling size or RV residency was found; Code Enforcement lists RV storage as a category, so confirm directly with Planning & Zoning. source
Building permits & codes
RestrictedPeoria County enforces the 2018 ICC I-Codes and 2017 NFPA 70 electrical code (adopted effective July 2021), with permits required for new construction, additions, decks and sheds over certain sizes, pools, fences, and electrical/plumbing/HVAC work. source
Septic & composting toilets
Generally allowedThe Peoria City/County Health Department's Environmental Health Division issues permits and inspects onsite wastewater systems under the county's Chapter 19 ordinance, which references the state Private Sewage Disposal Licensing Act; a homeowner may install/service their own system. source
Greywater reuse
Unclear - verifyNo distinct county or health department provision on greywater reuse was found; it's likely covered under the same wastewater chapter, but this is not confirmed, so ask the Environmental Health Division directly.
Rainwater harvesting
Unclear - verifyNo official Peoria County or health department page specifically addresses residential rainwater harvesting, so this is not confirmed either way.
Private wells & water rights
Generally allowedThe Health Department's Environmental Health Division issues permits and inspects private wells under Peoria County's Chapter 23 alongside Illinois' state well construction and pump installation codes.
Living disconnected from utilities
Unclear - verifyNo standalone county ordinance requiring or prohibiting utility disconnection was found; any off-grid power or water system would still need to meet the county's adopted building and electrical codes and pass inspection. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.7 hrs/day
- Worst month (sizes an off-grid array)
- 3.3 hrs/day
- Yearly output per 1 kW of panels
- 1,358 kWh
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Weather1991-2020
- Precipitation
- 36 in/yr
- Snowfall
- 25 in/yr
- Heating degree days
- 5,831 (cold)
- Frost-free season
- Apr 18 to Oct 19
How far help isstraight-line
- Hospital
UnityPoint Health - Methodist - 0.5 mi
- Fire station
Peoria Fire Central - 0.3 mi
- Hardware store
Builder's Warehouse - 0.8 mi
- Grocery
Walmart Supercenter - 0.7 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 61602).
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.