Off-grid site report
Sac County, IA
42.2589, -95.0354 · 1,230 ft elevationRead this before you act on anything below. This is my researched starting point for Sac 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 rulesSac County, IA
Zoning & raw-land occupancy
Varies locallySac County has its own Zoning Commission and Board of Adjustment, both appointed by the Board of Supervisors, but the Planning & Zoning Director said in February 2025 that the ordinance needs revisions and her office would begin updating it. No blanket rule permitting or barring off-grid raw-land occupancy was found; confirm current status with the Zoning Administrator. source
Dwellings, tiny homes & RVs
Unclear - verifyNo official Sac County or Iowa page specifically addresses tiny homes or RVs used as permanent residences. Iowa Code §335.30 limits county add-ons for HUD-code manufactured homes but doesn't resolve this question; ask the Zoning Administrator directly. source
Building permits & codes
Varies locallySac County Planning & Zoning, under Zoning Administrator Taylor Egesdal, issues building and other permits, but whether the county has adopted the Iowa State Building Code as-is or with amendments isn't confirmed on public pages. source
Septic & composting toilets
Generally allowedSac County Environmental Health (the Sanitarian) issues septic permits, sizes systems by bedrooms and soil analysis, and requires a Sac County Certified Septic Installer, all under Iowa DNR's statewide private sewage rules (567 IAC Chapter 69). source
Greywater reuse
Unclear - verifyNo Sac County or Iowa DNR page specifically addresses greywater reuse separate from septic/blackwater; ask the Sac County Sanitarian directly since it may fall under the same private sewage disposal permitting.
Rainwater harvesting
Unclear - verifyNo official Sac County or Iowa DNR page was found addressing residential rainwater catchment; confirm directly with county Environmental Health.
Private wells & water rights
Generally allowedSac County Environmental Health issues well drilling permits and does water testing for private wells, following Iowa Administrative Code Chapter 49 and county procedures, with DNR-certified drillers required; the county also runs a well-plugging reimbursement program. source
Living disconnected from utilities
Varies locallyNo county ordinance was found barring off-grid utility disconnection outright, but compliant septic and well permits are required, and the zoning framework governing occupancy standards is currently under revision per the Planning & Zoning Director. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.8 hrs/day
- Worst month (sizes an off-grid array)
- 3.1 hrs/day
- Yearly output per 1 kW of panels
- 1,395 kWh
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Weather1991-2020
- Precipitation
- 34 in/yr
- Snowfall
- 31 in/yr
- Heating degree days
- 7,480 (cold)
- Frost-free season
- Apr 30 to Oct 2
How far help isstraight-line
- Hospital
Loring Hospital - 11.4 mi
- Fire station
Wall Lake City Fire Department - 3.0 mi
- Hardware store
Bomgaars - 15.5 mi
- Grocery
Lake View Foods - 3.3 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 51466).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Sac 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.