Off-grid site report

Hancock County, IA

43.2529, -93.6447 · 1,247 ft elevation

Read this before you act on anything below. This is my researched starting point for Hancock 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 rulesHancock County, IA

Zoning & raw-land occupancy

Varies locallyHancock County has countywide zoning, but only 10 of the county's 17 townships have their own zoning ordinances, so rules differ depending on which township you're in. Improvements that are part of a farm or agricultural operation are exempt from zoning control, though a permit is preferred even then; non-agricultural raw land use falls under the county Zoning Ordinance and township rules where they exist. source

Dwellings, tiny homes & RVs

Varies locallyI could not find Hancock County-specific rules on tiny homes or using an RV as a permanent residence; the county's own materials just point you to call the Zoning Department directly on these. Iowa state law limits extra local restrictions on HUD-code manufactured homes on agricultural land, but this is not confirmed at the county level, so check with the Zoning Office before you commit. source

Building permits & codes

Varies locallyFarm and agricultural improvements are exempt from zoning control, with a permit preferred but not required. Other structures go through the county's zoning/building certificate process, which is either an administrative 'permitted use' certificate or a 'conditional use' certificate requiring Board of Adjustment approval. source

Septic & composting toilets

Generally allowedSeptic systems are permitted but tightly regulated under Hancock County Ordinance 6, which covers on-site sewage treatment construction standards, permitting, and licensing of installers, with site and soil analysis required by the county Environmental Health Office before work starts. Composting or alternative toilets aren't separately addressed and would fall under this same state/county private sewage framework, so confirm specifics with Environmental Health. source

Greywater reuse

Unclear - verifyI found no Hancock County or Iowa DNR page that specifically addresses greywater reuse; it may be swept into the general on-site sewage treatment ordinance, but that's not confirmed. Ask the Hancock County Environmental Health Office directly before setting up a greywater system.

Rainwater harvesting

Unclear - verifyNo Hancock County ordinance or Iowa DNR rule specifically addressing residential rainwater catchment turned up in my research, mirroring a similar gap at the state level. Treat this as unconfirmed and check with the county before relying on it for anything beyond casual garden use.

Private wells & water rights

Generally allowedPrivate wells are permitted but require a county permit tied to Iowa Administrative Code standards, with Environmental Health inspecting construction of all nonpublic water supplies; the county also runs a well-reconstruction grant program for wells in vulnerable spots. Permits and construction rules ultimately follow Iowa DNR standards, so that office is the backstop authority. source

Living disconnected from utilities

Varies locallyI found no Hancock County ordinance that bans disconnecting from electric or water utilities outright, but living off-grid on a property still means you have to satisfy the county's septic and well permitting rules and any applicable zoning/building certificate for your structure. Whether there's any hidden requirement to hook up to available grid power is not confirmed, so it's worth a direct call to the county. source

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 4.6 hrs/day
Worst month (sizes an off-grid array): 2.8 hrs/day
Yearly output per 1 kW of panels: 1,353 kWh

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Weather1991-2020

Precipitation: 34 in/yr
Heating degree days: 7,740 (severe)
Frost-free season: Apr 27 to Oct 4

How far help isstraight-line

Hospital Hancock County Memorial Hospital: 13.5 mi
Fire station Forest City Fire Department: 0.9 mi
Hardware store Bomgaars: 1.1 mi
Grocery Forest City Foods: 1.0 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 50436).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

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.