Davison County, South Dakota
Perry Township is a township in Davison County, South Dakota. Septic permits inside Perry Township come from the county and state together. 3 rules below are quoted from official sources and independently re-checked, most recently on November 11, 2026. Rules for unincorporated land are on the Davison County page.
Perry Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Structures in the unincorporated county, including inside Perry township; permit issued by the county zoning administrator.
“no concrete shall be poured, infrastructure installed, or structure shall be erected, demolished, moved, added to, or use changed without a permit issued by the zoning administrator.”
Land inside Perry township, Davison County, SD, which is unincorporated and not one of the excluded cities, so the Davison County zoning ordinance applies there. No separate Perry township zoning ordinance was found.
“the provisions of this ordinance shall apply within the unincorporated areas of davison county, south dakota, to include loomis but excluding ethan, mt. vernon, and mitchell.”
Individual sewage treatment systems in unincorporated Davison County, including inside Perry township; county ordinance sets siting limits and requires compliance with South Dakota DANR rules.
“septic systems installed within davison county must comply with all applicable south dakota department of environment and natural resources and state plumbing code regulations, to include ar 74:53:01.”
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Off-grid gear
Going off-grid in Perry Township means bringing your own water and power. The kit we’d start with:
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