South Dakota
Buying Land in Aurora County, South Dakota
A small, agricultural county in east-central South Dakota, seat Plankinton. Aurora County shows no public sign of a countywide zoning ordinance or a dedicated planning department -- the Department of Equalization appears to be the office that fields building-permit questions -- which is worth confirming directly before you assume any particular use is or isn't allowed on a parcel.
Zoning: no ordinance found -- confirm directly rather than assume
Repeated searches of Aurora County's public records, its document postings, and South Dakota state archives turned up no published zoning ordinance, comprehensive plan, or standalone Planning & Zoning department for Aurora County. What we did find, across multiple secondary sources, is that the county's Department of Equalization -- based at the Aurora County Courthouse in Plankinton -- is described as the office handling property assessments and building permits, with no separate zoning department mentioned alongside it. That combination points toward the pattern the state hub flags: many rural South Dakota counties, particularly smaller ones, have never adopted county-wide zoning under SDCL Chapter 11-2, leaving land use in unincorporated areas largely unregulated at the county level.
We're disclosing this as an open question rather than a confirmed fact. We could not obtain a direct statement from Aurora County confirming it has no zoning ordinance at all -- only the absence of any public evidence that one exists. Before you buy, call the Aurora County Auditor's office or the Department of Equalization directly and ask, in plain terms, whether the county has adopted any zoning ordinance, subdivision regulation, or building code that would apply to your specific parcel, and get that answer in writing if it matters to your plans.
A small agricultural county, with one notable institutional land use
Aurora County is a small, agricultural county in east-central South Dakota -- 2,747 residents at the 2020 census across about 713 square miles, with Plankinton as the county seat and White Lake and Stickney as its other incorporated towns. As in most of rural South Dakota, expect a lean county government: a handful of elected officials and department heads covering functions that a larger county would split across dedicated staff, so plan for longer turnaround times on document requests and build extra lead time into any closing timeline that depends on a county office's response.
One land use in the county is genuinely distinct from what you'd find in most similarly-sized South Dakota counties: Aurora Plains Academy in Plankinton, a state-licensed, 42-bed residential treatment facility for youth ages 12-18, operating on the grounds of the former Dakota Reform School (State Training School), a state institution with roots going back to the 1880s. The Academy is owned and operated by Clinicare Corporation, a Wisconsin-based behavioral-health company, and includes specialized programs such as an Intensive Residential Treatment unit and an Intermediate Care Facility for individuals with intellectual disabilities. For a county this size, that's a substantial institutional employer and a distinct piece of local land use history worth knowing about, even if it has no direct bearing on a typical rural land purchase.
For septic and on-site wastewater permitting, we could not identify a dedicated Aurora County environmental health office independent of the Equalization Department -- see officialContactsNote. As with zoning, confirm the actual permitting path directly with the county before assuming a specific office handles it.
Who to Call Before Buying Land in Aurora County
We could not confirm whether Aurora County has adopted any countywide zoning ordinance -- see the Zoning section above; this is a gap to close by calling the county directly, not a confirmed 'no zoning' finding. We also could not identify a dedicated Aurora County environmental health, septic, or GIS/parcel-mapping office independent of the Department of Equalization; if one exists, it likely operates out of the same courthouse office. Names of current department heads (Director of Equalization, county commissioners) were not independently confirmed as of this writing and are omitted rather than guessed -- confirm current staff with the Auditor's office.
Assessor / Property Tax
Aurora County Department of Equalization
Property assessments, and -- per secondary sources -- building permit and zoning-adjacent questions for Aurora County, since no separate Planning & Zoning department was identified.
Recorder / Clerk / Land Records
Aurora County Register of Deeds
Recorded deeds, mortgages, plats, and lien history for a specific parcel.
Other
Aurora County Auditor
County commission agendas and minutes, elections, and general routing to the correct county department for a specific question -- a useful first call in a county this size.
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Get local guidanceSources
- Aurora County, South Dakota — Wikipedia (cross-checked against U.S. Census Bureau figures) (accessed 2026-09)
- U.S. Census Bureau QuickFacts: Aurora County, South Dakota — U.S. Census Bureau (accessed 2026-09)
- Codified Law 11-2, County Planning and Zoning — South Dakota Legislature (accessed 2026-09)
- Aurora County Register of Deeds contact listing — South Dakota Secretary of State (accessed 2026-09)
- New Days in Aurora County — South Dakota Magazine (accessed 2026-09)
- Aurora Plains Academy — Aurora Plains Academy / Clinicare Corporation (accessed 2026-09)
- Aurora County Equalization Department — CountyOffice.org (secondary directory, phone cross-checked) (accessed 2026-09)
Last reviewed 2026-09