Wyoming
Buying Land in Campbell County, Wyoming
Campbell County -- home to Gillette and the Powder River Basin's coal industry -- doesn't fit neatly into either the "zoned" or "unzoned" Wyoming county pattern. Most land has no blanket zoning, but many individual subdivisions do carry their own zoning, and the county runs one of the state's few actual building-permit programs. Add a mineral-rich subsurface, and split estate is a live issue here in a way it isn't in most counties.
No blanket zoning, but plenty of parcels ARE zoned -- check the specific subdivision
Campbell County does not have countywide zoning the way Albany or Carbon counties do. But it is genuinely different from a simply "unzoned" county like Big Horn or Goshen: most existing subdivisions in unincorporated Campbell County have been individually zoned, specifying how that particular platted land may be used, and every zoned parcel requires a Zoning Certificate verifying that a proposed structure or use is compatible with its assigned classification. The county's own Chapter Seven Rules (Zoning Regulations), originally adopted in 1969 and since amended, govern those zoned areas. Practically, this means the right question for a Campbell County parcel isn't "is the county zoned?" but "is this specific subdivision zoned, and what does that zoning actually allow?" -- a distinction easy to miss if you're used to either a fully zoned or fully unzoned county.
Inside Gillette city limits, zoning and permitting run through the City's own Planning Division and Zoning Ordinance rather than the county -- the county's Planning & Zoning Division only has authority in unincorporated areas.
A real, current building code -- unusual among rural Wyoming counties
Wyoming has no statewide building code, and most rural counties have not adopted a countywide one either. Campbell County breaks from that pattern: it operates a real Building Division holding building and electrical code delegation from the state, with the current 2024 International Codes and 2026 NEC adopted. But the code doesn't apply the same way everywhere in the county -- whether a project needs a building permit at all turns on one specific, easy-to-miss fact.
See our dedicated page on building on raw land in Campbell County for that distinction: a one- or two-family home built outside a platted subdivision is exempt from the county building permit entirely (though electrical, mechanical, plumbing, and septic permits still apply), while the same home inside a platted subdivision goes through the full Chapter 4 permitting and inspection process.
The heart of the nation's top coal-producing region -- what that means for a surface owner
Campbell County sits in the Powder River Basin, the largest coal basin in Wyoming, and is home to the Black Thunder Mine -- one of the largest coal mining complexes in the world, in operation since 1977 and, in recent years, alone producing over a quarter of Wyoming's total coal output. The Powder River Basin as a whole spans parts of Campbell, Converse, Crook, Natrona, Niobrara, Johnson, and Weston Counties, but Campbell is its center, and coal has shaped the county's land patterns for decades: large-scale surface mining, reclaimed post-mining land, and extensive coal, oil, and gas leasing are all part of the ordinary land picture here in a way they simply aren't in most of Wyoming.
Wyoming's mineral estate is very commonly "split" from the surface estate -- meaning the person who owns the surface of a parcel may not own the coal, oil, or gas beneath it, and a mineral owner or lessee generally retains a legal right to reasonable access to develop those minerals even over a surface owner's objection. Wyoming addressed some of the friction this creates with a split-estate law in 2005, but it did not eliminate the underlying separation of ownership. For a Campbell County buyer, this makes a mineral and surface title search a genuinely higher-stakes step than in a county with little mineral activity: confirm what, if anything, is included in the mineral estate with the purchase, whether any existing coal, oil, gas, or coalbed methane leases affect the parcel, and whether the land (or land nearby) has been previously mined and reclaimed, since reclaimed land can carry its own subsidence and land-use history worth understanding before you build.
Who to Call Before Buying Land in Campbell County
Well permitting is a state, not county, function -- see the Wyoming State Engineer's Office on the state hub. Campbell County's recorder/clerk and agricultural extension functions exist but were not independently verified with a direct source for this page; confirm current contact details with the county directly.
Planning & Zoning
Campbell County Planning & Zoning Division
Confirming whether a specific subdivision has been zoned, what its Zoning Certificate requirements are, and permitted uses under Chapter Seven Rules.
Building & Permitting
Campbell County Public Works -- Building Division
Building permits for new construction, additions, and remodels in unincorporated Campbell County under the adopted International Codes.
Septic / Onsite Wastewater
Campbell County Planning & Zoning Division -- Small Wastewater Program
Septic permit applications, required perc tests, and Planning & Zoning Commission review for systems under 2,000 gallons per day.
Subdivision & Land Development
Campbell County Planning & Zoning Division
Subdivision review procedure and whether a proposed division would create newly-zoned parcels.
GIS / Parcel Records
Campbell County GIS & Mapping
Pulling a specific parcel's zoning status (if any), subdivision boundary, and ownership record before assuming a listing's description is complete.
Assessor / Property Tax
Campbell County Assessor
Current assessed value and property tax questions, including on mineral or split-estate parcels.
Other
Wyoming Oil and Gas Conservation Commission
Confirming active or permitted oil, gas, or coalbed methane wells and operators near a specific parcel -- a state, not county, function relevant to any split-estate purchase in the Powder River Basin.
Want to know if this specific parcel actually works?
Tell us what you're looking at and we'll connect you with a local land specialist who can help you sanity-check it before you go further.
Get local guidanceTopics Specific to Campbell County
Sources
- Planning & Zoning Division — Campbell County, Wyoming Government (accessed 2026-09)
- Zoning Regulations — Campbell County, Wyoming Government (accessed 2026-09)
- Chapter Seven Rules -- Zoning Regulations — Campbell County, Wyoming Government (accessed 2026-09)
- Notice of Intent to Adopt -- Chapter 4 Rules Regulating Construction — Campbell County, Wyoming Government (accessed 2026-09)
- Small Wastewater (Septic) Systems — Campbell County, Wyoming Government (accessed 2026-09)
- Black Thunder Coal Mine — Wikipedia (accessed 2026-09)
- Split Estate and Wyoming's Orphaned Well Crisis: The Case of Coalbed Methane Reclamation in the Powder River Basin, Wyoming — Case Studies in the Environment (University of California Press) (accessed 2026-09)
- Small Wastewater Systems — Wyoming Department of Environmental Quality (accessed 2026-09)
Last reviewed 2026-09