Off-grid site report
Adair County, IA
41.5006, -94.6435 · 1,463 ft elevationRead this before you act on anything below. This is my researched starting point for Adair County, IA, 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 rulesAdair County, IA
Zoning & raw-land occupancy
Varies locallyAdair County has no comprehensive countywide zoning ordinance as of 2024; the Board of Supervisors has only passed narrow, subject-specific ordinances (like on wells/septic and large commercial buildings). This means raw-land occupancy in unincorporated areas isn't governed by a comprehensive zoning code, but incorporated towns like Greenfield have their own zoning. Confirm with the county Auditor's office or Board of Supervisors. source
Dwellings, tiny homes & RVs
Unclear - verifyI couldn't find any Adair County ordinance specifically addressing tiny homes or RV occupancy. With no comprehensive county zoning code, the state's manufactured home statute likely applies by default outside town limits, while incorporated towns govern within their limits, but this isn't confirmed for Adair County specifics, so ask the county Auditor or relevant town clerk. source
Building permits & codes
Unclear - verifyNo dedicated Adair County building permit ordinance or building code page turned up in my research. Since the county's population is well under the threshold that would force adoption of the state building code baseline, whether the county or any incorporated town has its own building code needs to be confirmed directly with the county Auditor or a town clerk. source
Septic & composting toilets
Generally allowedSeptic systems are permitted in Adair County, but the county doesn't run its own program, it contracts the work out to Guthrie County Environmental Health, which handles percolation tests, permits, and inspections. Adair County also has its own adopted ordinance covering wells and on-site wastewater treatment. source
Greywater reuse
Unclear - verifyI found no Adair County or Guthrie County page that separately addresses greywater reuse apart from general septic and wastewater rules. This is best confirmed directly with Adair/Guthrie County Environmental Health for a specific determination.
Rainwater harvesting
Unclear - verifyNo official Adair County or state page permitting, restricting, or prohibiting residential rainwater catchment showed up in my research, so this remains unconfirmed at the county level.
Private wells & water rights
Generally allowedPrivate wells are permitted in Adair County, requiring both state and county permits, with the well driller and Environmental Health department (delivered via the Guthrie County contract) coordinating construction, testing, and plugging. There's also a cost-share Grants to Counties Program to help plug abandoned wells or rehab existing ones. source
Living disconnected from utilities
Varies locallyI didn't find any Adair County ordinance that specifically prohibits or restricts going off-grid on utilities. That said, an occupied dwelling would still need to satisfy the county's well and septic permitting rules regardless of grid connection, and given the lack of comprehensive zoning, it's worth confirming directly with Environmental Health and the Auditor's office. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.9 hrs/day
- Worst month (sizes an off-grid array)
- 3.4 hrs/day
- Yearly output per 1 kW of panels
- 1,434 kWh
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Weather1991-2020
- Precipitation
- 37 in/yr
- Snowfall
- 26 in/yr
- Heating degree days
- 6,898 (cold)
- Frost-free season
- May 1 to Oct 1
How far help isstraight-line
- Hospital
Guthrie County Hospital - 14.8 mi
- Fire station
Adair City Fire Department - 0.0 mi
- Hardware store
Cappels Ace Hardware - 20.1 mi
- Grocery
Fareway - 16.5 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 50002).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Adair County, IA?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.