Off-grid site report

Thomas County, KS

39.3961, -101.0429 · 3,160 ft elevation

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

Zoning & raw-land occupancy

Varies locallyColby's zoning is administered jointly through the Colby-Thomas County Metropolitan Area Planning Commission, per city code. Whether a standalone zoning ordinance covers unincorporated county land was not confirmed; ask the county commission. source

Dwellings, tiny homes & RVs

Unclear - verifyColby restricts mobile homes to designated mobile-home districts within city limits. No countywide tiny-home or RV occupancy rule for unincorporated land was confirmed. source

Building permits & codes

Unclear - verifyNo official Thomas County building-permit page or adopted code was found. Kansas has no mandatory statewide building code, so this is a local matter not confirmed here. source

Septic & composting toilets

RestrictedThomas County has adopted its own Environmental Sanitary Code (building on an earlier 1992 Sanitary Code) covering septic tanks, aerobic treatment units, and experimental systems, layered on KDHE's statewide standards. source

Greywater reuse

Unclear - verifyThe county sanitary code addresses onsite wastewater broadly but no greywater-specific provision was found. Ask the county's environmental/health office.

Rainwater harvesting

Generally allowedNo county restriction on rainwater collection was found; the state's domestic-use exemption under the Kansas Water Appropriation Act appears to be the operative rule. source

Private wells & water rights

Varies locallyThomas County lies within Kansas's only Local Enhanced Management Area (shared with Sheridan County), which can add groundwater restrictions beyond the state domestic-use exemption. Whether the county requires its own well permit was not confirmed. source

Living disconnected from utilities

Unclear - verifyNo Thomas County ordinance requiring connection to public utilities for occupancy was found, and Kansas has no statewide mandate either. This is a local matter not confirmed here.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.7 hrs/day
Worst month (sizes an off-grid array): 3.9 hrs/day
Yearly output per 1 kW of panels: 1,632 kWh

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Weather1991-2020

Precipitation: 21 in/yr
Snowfall: 30 in/yr
Heating degree days: 5,943 (cold)
Frost-free season: May 1 to Oct 8

How far help isstraight-line

Hospital Citizens Medical Center, Inc.: 1.2 mi
Fire station Colby Fire Department: 1.0 mi
Hardware store: none within range
Grocery Walmart Supercenter: 2.0 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 67701).

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.