Indiana

Buying Land in Sullivan County, Indiana

Seat Sullivan, in southwestern Indiana's coal country. Sullivan County has no countywide zoning ordinance -- one of a real minority of Indiana counties without one -- and that absence is directly connected to why a reported $65 billion AI/data-center industrial park is now under construction here.

No Countywide Zoning Ordinance

Case-by-case / verify locally

Sullivan County has not adopted countywide zoning -- there is no zoning-district map or variance process for unincorporated land. Building permits, subdivision rules, and health-department septic requirements still apply; the City of Sullivan runs its own separate municipal zoning inside city limits.

Bear Run Mine: One of the Largest Surface Coal Mines in the Eastern US

Generally favorable

Peabody Energy's Bear Run Mine has operated in the county since 2010, producing 8-12 million tons of coal annually from roughly 240 million tons of reserves.

A Reported $65 Billion AI Data-Center Park Now Under Construction

Case-by-case / verify locally

Potentia Inc.'s roughly 1,000-acre Heartland Industrial Park near the Merom Generating Station moved forward, by county officials' own account, in part because there was no zoning ordinance to clear. See our dedicated zoning page for Sullivan County for details.

No countywide zoning -- what that actually means for a buyer

Sullivan County is one of the roughly dozen or so Indiana counties that has never adopted a countywide zoning ordinance under the state's optional IC 36-7-4 advisory planning law. In practice, that means there is no zoning-district map, no use-district classification, and no Board of Zoning Appeals variance process for land in unincorporated Sullivan County -- a landowner can generally sell or repurpose a parcel for a different use without clearing a zoning-approval step that a landowner in a zoned Indiana county would have to go through. County commissioners themselves have pointed to exactly this fact when discussing large new development in the county, explicitly noting that landowners have the right to sell for any purpose because there's no zoning to restrict it.

That doesn't mean anything goes, though, and it's worth being precise about what still applies. Building permits for unincorporated Sullivan County still run through the county (or, for certain regulated trades, the state Fire Prevention and Building Safety Commission); the county's health department still enforces septic and well rules under statewide standards; and any recorded subdivision plat or private deed restriction on a specific parcel remains fully enforceable regardless of the absence of zoning. The City of Sullivan, the county's only incorporated municipality, maintains its own separate zoning ordinance inside city limits -- so a parcel's status changes meaningfully depending on whether it sits inside or outside that city boundary.

Why the absence of zoning matters right now: a reported $65 billion data-center park

The clearest illustration of what unzoned land use means in practice in Sullivan County is unfolding right now: Potentia Inc. is developing the roughly 1,000-acre Heartland Industrial Park between County Road 400 West and the Merom Generating Station, aiming for a reported $65 billion in total investment from tenants and partners by 2030 -- among the largest private infrastructure projects in Indiana's history. AI cloud computing firm Fluidstack has publicly detailed plans for a data-center campus within the park, targeting operations beginning in 2027, and has committed $50 million directly to Sullivan County government and the surrounding Wabash Valley region through a community-enhancement agreement, alongside additional contributions to local schools and a county park program and a 15-acre land donation for a new county fire station.

County commissioners have connected this project directly to the county's lack of zoning: because Sullivan County has no zoning ordinance to clear, this kind of large-scale industrial conversion of what had been ordinary land near the Merom plant did not require the zoning review, public rezoning hearing, or variance process that a similarly sized project would face in a zoned Indiana county. Local residents have raised concerns of their own -- about heavy trucks on roads not built for that load, the project's use of local versus outside labor, and effects on local utilities -- and reporting notes that, notably, Potentia has not sought or received any tax abatement on the project, meaning its full assessed value is expected to generate property tax revenue for local schools and services from the start. Our dedicated zoning topic page for Sullivan County covers this project and what the county's unzoned status means more broadly for large-scale development pressure in more depth.

Coal country: Bear Run Mine and what surface mining means for nearby land

Sullivan County sits at the heart of Indiana's coal-producing region, and Peabody Energy's Bear Run Mine, which began production in 2010, is described in industry coverage as the largest surface coal mine in the eastern United States, with roughly 240 million tons of provable and probable reserves and annual production in the range of 8 to 12 million tons. Indiana's Department of Natural Resources Division of Reclamation regulates surface coal mining and reclamation statewide, requiring mined land to be restored to a usable condition -- a nearby operation, the Wild Boar Mine, won a National Mine Reclamation Award for resurfacing land with 48 inches of topsoil, far exceeding the state's 12-inch minimum requirement, which suggests reclamation practices in the region can meaningfully exceed the legal floor.

For a buyer, active or historic surface mining nearby carries real, practical due-diligence questions distinct from the county's zoning status: check whether a specific parcel sits within a permitted or reclaimed mining area via IDNR's Division of Reclamation records, and whether any mineral rights beneath the surface have been severed from the surface estate in a prior deed, since Indiana law allows mineral and surface ownership to be split and a landowner without mineral rights has limited say over future subsurface development.

Septic and other departments to know

For a standard septic system, the Sullivan County Health Department, at 27 S. Main Street in Sullivan (phone (812) 268-0224), issues permits under a 2022 county septic ordinance layered on statewide ISDH rules under 410 IAC 6-8.3, with a $100 permit fee due once plans are approved; you're required to contact the health department before breaking ground on any new system, and the permit must remain on-site through all phases of installation.

Given the scale of change underway near the Heartland Industrial Park, a buyer anywhere in that part of the county should check current road-use agreements, utility capacity, and any recorded easement or right-of-way tied to the project directly with the county commissioners before relying on an older description of the area, since this specific corridor has moved from ordinary rural land to a multibillion-dollar industrial site in a genuinely short window of time.

What we could and couldn't confirm

Sullivan County's lack of a countywide zoning ordinance is confirmed via WTHI-TV and MyWabashValley reporting quoting or paraphrasing county commissioners directly in the context of the Heartland Industrial Park project; this research pass did not locate a primary county-code source explicitly stating the absence of zoning, so this conclusion rests on secondary news reporting rather than a direct ordinance citation, though it is consistent with Indiana's well-documented statewide pattern of roughly a dozen counties never having adopted IC 36-7-4 zoning. The Heartland Industrial Park's acreage (roughly 1,000), the $65 billion total-investment figure, Fluidstack's $50 million community-enhancement commitment, and the absence of any tax abatement sought are corroborated across MyWabashValley, Business Wire, and Data Center Dynamics reporting. Bear Run Mine's reserve and production figures are drawn from Global Energy Monitor and Peabody Energy's own historical fact sheets and were not independently re-verified against a more current IDNR production report in this pass. Direct WebFetch to sullivancounty.in.gov, in.gov, and the news domains cited was blocked by a network egress restriction throughout this research pass.

Verify directly with: the Sullivan County Board of Commissioners for the county's current land-use and building-permit process given the absence of zoning, the Sullivan County Health Department for septic permitting, and Indiana DNR's Division of Reclamation for current surface-mining permit boundaries near a specific parcel

Who to Call Before Buying Land in Sullivan County

Direct WebFetch access to sullivancounty.in.gov, in.gov, and related news domains was blocked by a network egress restriction throughout this research pass; department details reflect WebSearch-indexed content rather than a full verbatim site read -- confirm current staff, hours, and fees directly.

Planning & Zoning

Sullivan County Board of Commissioners

General land-use questions for unincorporated Sullivan County, which has no countywide zoning ordinance; the Heartland Industrial Park's road and community-enhancement agreements.

Official website →

Building & Permitting