Off-grid site report

Harding County, SD

45.3983, -103.8327 · 3,422 ft elevation

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

Zoning & raw-land occupancy

Unclear - verifyState law (SDCL 11-2) lets counties adopt zoning, but no Harding County zoning ordinance or map was found. It's possible the county has none, but this isn't confirmed; ask the Harding County Board of Commissioners. source

Dwellings, tiny homes & RVs

Unclear - verifyNo Harding County rule on tiny homes, minimum square footage, or RV/mobile home placement was found. If such rules exist they'd be set locally, not by the state.

Building permits & codes

Unclear - verifySouth Dakota has no uniform statewide building code; enforcement is a local county/city choice, and no Harding County building permit ordinance or department was found, suggesting minimal or no enforcement outside any towns, but not confirmed. source

Septic & composting toilets

Generally allowedSeptic systems statewide are regulated by DANR administrative rule with state-certified installers; no Harding County-specific septic ordinance was found, so confirm local administration with the county and DANR.

Greywater reuse

Unclear - verifyNo state or Harding County rule on residential greywater reuse was found; ask the county directly.

Rainwater harvesting

Unclear - verifyNo dedicated state or Harding County rainwater harvesting rule was found, though very large-scale water use can trigger a DANR water right permit requirement. source

Private wells & water rights

Generally allowedWells statewide, including in Harding County, are regulated by DANR's Water Rights Program and must meet state well construction standards; domestic use below certain thresholds doesn't need a water right permit. source

Living disconnected from utilities

Varies locallyNo state or Harding County law prohibits living off the grid; any electrical wiring work is handled through the state Electrical Commission's homeowner wiring permit process regardless of county.

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): 3.3 hrs/day
Yearly output per 1 kW of panels: 1,497 kWh

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Weather1991-2020

Precipitation: 15 in/yr
Snowfall: 45 in/yr
Heating degree days: 7,666 (severe)
Frost-free season: May 20 to Sep 18

How far help isstraight-line

Hospital: none within range
Fire station Camp Crook Fire Station: 12.4 mi
Hardware store: none within range
Grocery Super Valu: 18.8 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 59319).

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.