South Dakota

Buying Land in Lincoln County, South Dakota

Southeastern South Dakota's Lincoln County, seat Canton, sits immediately south of Sioux Falls and is growing about as fast as almost any county in the country -- roughly 18-24% since the 2020 Census. That growth pressure produced something unusual for South Dakota: a formal Joint Zoning Ordinance shared with the City of Sioux Falls covering unincorporated land at the urban edge, with boundary lines renegotiated as Sioux Falls, Harrisburg, and Tea all expand toward each other.

One of the Fastest-Growing Counties in the Country

Case-by-case / verify locally

Lincoln County grew from a 2020 Census population of 65,161 to roughly 77,100 by 2025 -- growth in the high-teens to mid-20s percentage range depending on the measure -- making it South Dakota's third most populous county and putting it consistently among the fastest-growing counties in the United States by percentage. That kind of growth means rapid subdivision activity, quickly shifting land values near Sioux Falls, Harrisburg, and Tea, and municipal annexation as a live possibility for county-edge parcels -- confirm whether a specific parcel is likely to fall inside an expanding city's boundary or extraterritorial planning area before assuming its current unincorporated status is permanent.

A Real Joint Zoning Ordinance With Sioux Falls

Generally favorable

Rather than leaving county and city zoning to potentially conflict at the urban edge, Lincoln County and the City of Sioux Falls operate under a formal Joint Zoning Ordinance (originally adopted 2006, codified in the Sioux Falls municipal code) that governs land use in unincorporated territory within the joint-jurisdiction area near the city. This is a genuinely more coordinated zoning structure than a typical single-jurisdiction rural county, and it means a parcel's applicable zoning rules can come from this joint framework rather than a purely county-only ordinance -- confirm which regime (county-only, joint, or a specific municipality's own code) governs a specific parcel with Lincoln County Planning & Zoning directly.

Growth Boundaries Are Actively Being Renegotiated

Could not confirm

As Sioux Falls, Harrisburg, and Tea all grow toward one another, the joint-jurisdiction boundary lines between the county and these cities have been actively updated -- the Sioux Falls City Council took up updated joint zoning boundaries with Lincoln County as recently as October 2025, following an August 2025 agreement among Sioux Falls, Harrisburg, and Tea to set clearer growth lines. This means the specific zoning jurisdiction and future annexation likelihood for a parcel near any of these municipal edges can change on a relatively short timeline -- verify current boundary status directly with the county or the relevant city's planning department rather than relying on an older map.

Growth pressure that produced a genuinely coordinated zoning structure

Lincoln County is, in a real sense, the exception that proves the rule on the state hub's point about South Dakota's uneven zoning landscape: rather than having no zoning at all, or a single county-only ordinance, Lincoln County shares a formal Joint Zoning Ordinance with the City of Sioux Falls, first adopted in 2006 and codified in the Sioux Falls municipal code, governing land use in unincorporated territory near the city rather than leaving county and city rules to potentially conflict as development pushes outward. That's a materially different, more coordinated setup than the six counties covered in this research batch generally show, and it reflects a very real practical problem: Lincoln County's population grew from 65,161 at the 2020 Census to roughly 77,100 by 2025, growth in the high-teens to mid-20s percent range depending on the measure used, consistently placing it among the fastest-growing counties in the entire United States and making it South Dakota's third most populous county, inside the Sioux Falls Metropolitan Statistical Area.

That growth doesn't sit still, and neither does the joint-zoning boundary line. As Sioux Falls has continued expanding south and southeast, and as the separately incorporated cities of Harrisburg and Tea (both within or adjacent to Lincoln County) have grown toward Sioux Falls and toward each other, the three cities reached an agreement in August 2025 to set clearer mutual growth boundaries, and the Sioux Falls City Council took up updated joint zoning boundary lines with Lincoln County as recently as October 2025. For a buyer, this means a parcel's zoning jurisdiction -- and its longer-term annexation risk or opportunity -- near any of these growing cities is genuinely a moving target rather than a fixed historical fact; confirm current joint-jurisdiction boundaries and any pending boundary changes directly with Lincoln County Planning & Zoning or the relevant city's planning department before assuming a parcel's current status will hold.

What fast growth means for a specific parcel here

Practically, fast growth cuts two ways for a land buyer in Lincoln County. On one hand, it means real, ongoing demand for residential and commercial development near Canton, Harrisburg, Tea, and the Sioux Falls edge, with land values in those growth corridors moving faster than in a typical rural South Dakota county -- and a parcel just outside city limits today may realistically face annexation, rezoning, or a subdivision proposal on its border within a few years rather than decades. On the other hand, it means more active, more procedurally involved land-use review: change-of-zone applications, conditional use permits, and plat approvals go through Lincoln County's Planning & Zoning Department (for unincorporated parcels outside the joint-jurisdiction area) or through the joint zoning process (for parcels inside it), with more moving parts and more public process than a county with no zoning or a static rural population.

Away from the immediate Sioux Falls-Harrisburg-Tea growth corridor, Lincoln County still has a substantial agricultural base along the Big Sioux River valley, and land further from the urban edge behaves more like traditional South Dakota farmland -- valued and used for row-crop agriculture rather than development potential. The practical due-diligence takeaway is the same either way: confirm current zoning district, any pending rezoning or annexation petition, and whether a specific parcel sits inside or outside the joint-jurisdiction area, directly with Lincoln County Planning & Zoning before assuming either a rural or an urban-fringe zoning picture applies.

What we could and couldn't confirm

Lincoln County's population figures come from the U.S. Census Bureau's 2020 decennial count and more recent American Community Survey / population-estimate figures for 2024-2025, which carry wider margins of error than a decennial census and should be treated as directional (Lincoln County is unambiguously growing fast) rather than precise to the person. The Joint Zoning Ordinance's 2006 adoption date and its codification as Chapter 158 of the Sioux Falls municipal code are drawn from the American Legal Publishing code library; the October 2025 boundary-update reporting comes from a single local news source we could not directly fetch during this research, so treat the specific timeline as approximate and confirm the current joint-jurisdiction boundary map directly with the county or city. We did not independently verify a precise current boundary map or which specific parcels have moved between joint-jurisdiction and municipal status.

Verify directly with: the Lincoln County Planning & Zoning Department for zoning, permitting, and joint-jurisdiction boundary questions, and the City of Sioux Falls Planning & Development Services office for the city side of the joint zoning ordinance and any pending annexation

Who to Call Before Buying Land in Lincoln County

We could not confirm direct email addresses for the Planning & Zoning Department, the Director of Equalization, or the Register of Deeds beyond their phone lines and web contact forms; use the website contact forms if email is preferred, or call directly. We could not directly fetch lincolncountysd.gov or the October 2025 Dakota News Now report on the joint zoning boundary update during this research due to a network access restriction, so the boundary-update timeline is drawn from search-indexed summaries and should be confirmed directly with the county or the City of Sioux Falls' planning department for the current boundary line.

Planning & Zoning

Lincoln County Planning & Zoning Department

Zoning district confirmation, change-of-zone and conditional use permit applications, building permits, and confirming whether a parcel falls under county, joint-jurisdiction, or municipal zoning.

Phone: (605) 764-2938Official website →

Joint Zoning Regulations for Lincoln County and the City of Sioux Falls

Assessor / Property Tax

Lincoln County Director of Equalization

Assessed value and property tax questions for a specific parcel.

Phone: (605) 764-2571Official website →

Recorder / Clerk / Land Records

Lincoln County Register of Deeds

Recorded deed, easement, and plat history for a specific parcel.

Phone: (605) 764-5661Official website →

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Topics Specific to Lincoln County

Developing a Subdivision in Lincoln County, South Dakota →

Sources

Planning & Zoning | Lincoln County, SD — Lincoln County, South Dakota Government (accessed 2026-09)
Joint Zoning Regulations for Lincoln County and the City of Sioux Falls — Lincoln County, South Dakota Government (accessed 2026-09)
CHAPTER 158: 2006 JOINT ZONING REGULATIONS LINCOLN COUNTY AND SIOUX FALLS — American Legal Publishing (Sioux Falls, SD Code of Ordinances) (accessed 2026-09)
Sioux Falls City Council to hear joint zoning ordinance with Lincoln County — Dakota News Now (accessed 2026-09)
Equalization | Lincoln County, SD — Lincoln County, South Dakota Government (accessed 2026-09)
Register of Deeds | Lincoln County, SD — Lincoln County, South Dakota Government (accessed 2026-09)
Lincoln County, South Dakota — Wikipedia (cross-checked against U.S. Census Bureau data) (accessed 2026-09)
U.S. Census Bureau QuickFacts: Lincoln County, South Dakota — U.S. Census Bureau (accessed 2026-09)

Last reviewed 2026-09