Off-grid site report

Riley County, KS

39.2989, -96.8308 · 1,289 ft elevation

Read this before you act on anything below. This is my researched starting point for Riley County, KS, 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 rulesRiley County, KS

Zoning & raw-land occupancy

Varies locallyRiley County Planning & Development administers countywide Land Development Regulations; agriculture is exempt but other uses must fit the zoning district (SF-1 allows livestock on 2+ acres, SF-2/SF-3 do not). Unlisted uses require a rezoning application. source

Dwellings, tiny homes & RVs

Unclear - verifyManufactured homes need a permanent foundation and building permit outside mobile home parks; rules differ by residential zone. RV or tiny-home-on-wheels permanent occupancy is not confirmed on the county's site, so ask Planning & Development directly. source

Building permits & codes

RestrictedRiley County requires a building permit countywide to check zoning, setbacks, and Sanitary Code compliance, though it has not adopted a building code itself; structures under 49 sq ft and those on federal or state/KSU land are exempt. source

Septic & composting toilets

RestrictedThe county's own Sanitary Code, enforced by Environmental Health, requires a septic permit for any structure with running water, mandates periodic tank pumping/inspection by a licensed hauler, and allows alternative systems with annual inspection. Composting toilet rules are not confirmed. source

Greywater reuse

Unclear - verifyNo dedicated greywater ordinance was found; it likely falls under the Sanitary Code's broader wastewater disposal rules, but this is not confirmed, so check with Environmental Health. source

Rainwater harvesting

Generally allowedNo county rule addresses rainwater harvesting; it presumably falls back to Kansas's state-level domestic-use exemption, but this is not confirmed at the county level.

Private wells & water rights

RestrictedUnder the county Sanitary Code, you must apply for and receive an approved well permit before using the water; Riley County itself does not test well water and refers residents to Geary County's Sanitarian. source

Living disconnected from utilities

RestrictedGoing off the electrical grid is not restricted, but any premise without a lawful private wastewater system is subject to the full Sanitary Code, meaning you can't legally skip septic/water permitting even if fully self-sufficient otherwise. source

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.2 hrs/day
Worst month (sizes an off-grid array): 3.8 hrs/day
Yearly output per 1 kW of panels: 1,507 kWh

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Weather1991-2020

Precipitation: 33 in/yr
Snowfall: 9 in/yr
Heating degree days: 5,524 (cold)
Frost-free season: Apr 23 to Oct 16

How far help isstraight-line

Hospital Via Christi Hospital: 14.1 mi
Fire station Riley County Fire District 1 Station 5: 0.2 mi
Hardware store Rhonda's Riley Lumber: 0.4 mi
Grocery Dillons: 13.9 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 66531).

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.