Off-grid site report
Whiteside County, IL
41.8102, -89.9639 · 682 ft elevationRead this before you act on anything below. This is my researched starting point for Whiteside 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 rulesWhiteside County, IL
Zoning & raw-land occupancy
Varies locallyWhiteside County has its own countywide Zoning, Planning & Development Ordinance administered by the county Building & Zoning Administrator; special uses need County Board approval under state statute. Incorporated towns have their own codes that override the county's within city limits. source
Dwellings, tiny homes & RVs
Unclear - verifyNo specific county provision on tiny-home minimum size or permanent RV occupancy was confirmed; ask the Building & Zoning office about your specific zoning district.
Building permits & codes
RestrictedWhiteside County requires a building permit for structures built, moved, altered, or demolished in unincorporated areas, applied for in person at the Building and Zoning office, with updated codes tied to the new statewide code. source
Septic & composting toilets
Generally allowedThe Whiteside County Health Department administers septic permitting under county code (Ch. 20), requiring a written application, site plan, and soil investigation before construction and before the building permit is issued. source
Greywater reuse
Unclear - verifyNo county ordinance or Health Department page specifically addresses greywater reuse; it likely falls under the same private sewage permitting process, but this isn't confirmed. Ask the Health Department directly.
Rainwater harvesting
Unclear - verifyNo Whiteside County ordinance or Health Department guidance on residential rainwater harvesting was found; not confirmed either way.
Private wells & water rights
Generally allowedThe Whiteside County Health Department permits private wells under the state Water Well Construction Code and offers forms for new wells and for reusing existing well/septic systems. source
Living disconnected from utilities
Unclear - verifyNo standalone county ordinance addresses full utility disconnection; in practice, compliance is achieved through the building permit and septic/well permitting process rather than a distinct off-grid permit.
Sun30-year normals
- Peak-sun hours, annual average
- 4.7 hrs/day
- Worst month (sizes an off-grid array)
- 3.2 hrs/day
- Yearly output per 1 kW of panels
- 1,371 kWh
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Weather1991-2020
- Precipitation
- 38 in/yr
- Snowfall
- 30 in/yr
- Heating degree days
- 6,467 (cold)
- Frost-free season
- Apr 25 to Oct 10
How far help isstraight-line
- Hospital
Morrison Community Hospital - 0.3 mi
- Fire station
Morrison Fire Department - 0.2 mi
- Hardware store
Ace Hardware - 12.0 mi
- Grocery
Sullivan's - 0.1 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 61270).
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.