Off-grid site report

Buffalo County, SD

44.0421, -99.1968 · 1,713 ft elevation

Read this before you act on anything below. This is my researched starting point for Buffalo County, SD, 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 rulesBuffalo County, SD

Zoning & raw-land occupancy

Unclear - verifyNo adopted Buffalo County zoning ordinance was found. South Dakota's SDCL 11-2 lets counties adopt zoning covering lot coverage, density, and building use, but it's optional, and Buffalo County doesn't appear to have done so. Land on the Crow Creek Reservation may fall under tribal land-use authority instead. source

Dwellings, tiny homes & RVs

Unclear - verifyNo Buffalo County ordinance addressing tiny homes, manufactured housing, or RV dwelling was found. This is set at the county level under state law, and Buffalo County has no confirmed rule on it.

Building permits & codes

Unclear - verifyNo evidence of a Buffalo County building permit office or adopted building code was found; many small rural South Dakota counties have no local building code enforcement. Confirm with the County Auditor whether any permit process exists. source

Septic & composting toilets

Generally allowedSeptic systems statewide are regulated by the South Dakota Department of Agriculture and Natural Resources (DANR) and must be installed by state-certified installers. It's not confirmed whether Buffalo County adds its own local permitting layer on top of the state program. source

Greywater reuse

Unclear - verifyNo state statute or Buffalo County rule on residential greywater reuse was found; ask the county directly since there's no published baseline.

Rainwater harvesting

Unclear - verifyNo Buffalo County-specific rule was found; South Dakota has no dedicated statute on rainwater harvesting and domestic use is generally exempt from water-rights permitting.

Private wells & water rights

Generally allowedWells fall under DANR's statewide Water Rights Program and well construction standards, which apply uniformly across South Dakota counties; no separate Buffalo County well permitting office was identified. source

Living disconnected from utilities

Varies locallyNo state or Buffalo County law bars off-grid living. Electrical work is licensed through the SD Electrical Commission, with an owner's exemption for work on your own owner-occupied residence, subject to state inspection. source

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.0 hrs/day
Worst month (sizes an off-grid array): 3.4 hrs/day
Yearly output per 1 kW of panels: 1,463 kWh

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Weather1991-2020

Precipitation: 22 in/yr
Snowfall: 35 in/yr
Heating degree days: 7,860 (severe)
Frost-free season: May 8 to Sep 28

How far help isstraight-line

Hospital Sanford Health Chamberlain Medical Center: 18.8 mi
Fire station Gann Valley Fire Station: 10.4 mi
Hardware store Easy Drop Rental Center: 16.6 mi
Grocery Lynn's Dakotamart: 12.1 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 57341).

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.