Bolthole Index

Campbell County, Wyoming

Building permits, zoning and land rules in Campbell County, Wyoming

49Index Score / 100
#18 of 23 in Wyoming

Unincorporated Campbell County, Wyoming requires a building permit for residential construction through its Building Division.1 The county has no single countywide zoning scheme, but most subdivisions are zoned, so land-use rules depend on the parcel.2 Small wastewater systems also require county permits and inspections, including on property exempt from some other permits.3

At a glance

Building permit
Required for residential construction in unincorporated areas1
Zoning
No uniform countywide zoning; most subdivisions are zoned2
Septic
County permit and inspection required for small wastewater systems3
RV living
A temporary-use permit may allow an RV during home construction in a platted, zoned subdivision4
Tiny home
No general county occupancy rule confirmed; ask Planning and Zoning for the parcel5
Owner-builder
No explicit exemption confirmed; ask the Building Division before relying on one6
Water well
State approval is required before drilling a domestic or stock well7

Who to call

Building permits

Campbell County Building Division

Building permits and construction inspections in Campbell County

(307) 682-1970

500 S. Gillette Ave., Suite 1500, Gillette, Wyoming 82716

Planning & zoning

Campbell County Planning and Zoning Division

Land-development regulations in unincorporated Campbell County, zoning, subdivisions and floodplain questions

(307) 682-1970

[email protected]

500 S. Gillette Ave., Suite 1500, Gillette, Wyoming 82716

Roads & driveways

Campbell County Road & Bridge

Permits for roadway approaches and work in county rights of way

307-682-4411

5901 Hannum Rd, Gillette, WY 82716

Contact details are copied from each office’s official page and were checked against it on September 27, 2026.

Do you need a building permit in Campbell County, Wyoming?

Yes. Residential construction in unincorporated Campbell County requires a building permit through the county Building Division.1 Campbell County has adopted construction rules and operates its own local Building Division rather than sending an ordinary rural home project to a state office.1

Zoning status does not answer the permit question by itself. Even on unzoned or unplatted residential property, Campbell County identifies electrical, plumbing, small-wastewater and road-access permits as requirements that may still apply.8 Before ordering a building package or scheduling excavation, describe the structure and parcel to the Building Division and ask which application, plans and inspections apply.6 Campbell County's reviewed materials do not confirm a general owner-builder exemption, so an owner acting as builder should not assume that status removes county approvals; the Building Division is the office to ask.6

Who handles Campbell County building permits, and how do you reach them?

The Campbell County Building Division is the first stop for a rural residential building permit and construction-inspection questions.1 The office is at 500 S. Gillette Ave., Suite 1500, Gillette, Wyoming 82716, and its phone number is (307) 682-1970.6

Planning and Zoning handles land-development regulations in unincorporated Campbell County, including parcel zoning and subdivision questions.5 Contact that division at [email protected] or (307) 682-1970 before finalizing a site plan.5 For a new approach from a county road, Campbell County Road & Bridge permits roadway approaches and work in county rights of way.9 Road & Bridge is at 5901 Hannum Rd, Gillette, WY 82716, and can be reached at 307-682-4411.9 A state-highway access is a different jurisdiction, so identify who owns the road before treating a county approach approval as sufficient.8

Does Campbell County have zoning?

Campbell County does not apply one zoning scheme countywide, but most subdivisions have zoning that specifies permitted land uses.2 The practical answer is therefore parcel-specific: unincorporated land may be unzoned, while a lot in a subdivision may have an assigned district and additional restrictions.10

Campbell County publishes a zoning map, and a buyer can use the parcel's district to find the applicable provisions in the county zoning regulations.11 New major and minor subdivisions must receive an appropriate zoning district.11 Campbell County also requires Planning Commission approval for subdivisions other than administrative plats before final approval by the Board of County Commissioners.12 Ask Planning and Zoning to confirm the parcel's current status, allowed residential use, setbacks and any land-use approval before relying on a listing description.5 The reviewed county materials do not establish one general minimum dwelling size or building-height limit for every parcel, so those questions belong in the parcel review.5

How do septic permits work in Campbell County?

Campbell County has delegated authority from Wyoming DEQ to permit residential and commercial small wastewater systems with domestic design flows below 2,000 gallons per day.13 Permits and inspections are required for every small wastewater system, regardless of zoning and even where an agricultural or coal, oil or gas exemption applies to other building permits.3 Other wastewater systems may require Wyoming DEQ permitting.13

Site conditions can change the design. If a percolation result is under 1 minute or over 60 minutes, the system must be designed and sealed by a Wyoming-licensed professional engineer.14 Only 30.5% of county soils are rated without severe limitations for a conventional septic drain field, so make the site evaluation and system budget part of due diligence.15 The reviewed material does not confirm that alternative off-grid sanitation methods are allowed; ask the Building Division about the proposed system before purchase or installation.6

Can you live in an RV or tiny home on land in Campbell County?

For a home under construction in a platted, zoned subdivision, Campbell County says an applicant may seek a Temporary Use Permit to live in an RV for up to 1 year.4 That answer is conditional, not a blanket right to occupy an RV anywhere in unincorporated Campbell County.4 The cited county guidance does not establish the answer for other zoning districts or unzoned parcels, so Planning and Zoning should confirm the parcel-specific rule before an RV is used as a residence.5

The reviewed county materials also do not establish a general tiny-home occupancy rule or a countywide minimum dwelling size.5 A tiny home intended as a dwelling still raises separate questions about the building permit, the parcel's zoning or subdivision restrictions, potable water and approved wastewater disposal.1103 Ask the Building Division how the proposed structure will be classified, then ask Planning and Zoning whether that residential use fits the parcel.65

Building a home in Campbell County: what are the steps?

  1. Ask Planning and Zoning to identify the parcel's zoning status, subdivision status and applicable land-use restrictions.105
  1. Confirm legal access and ask Road & Bridge whether a county-road approach permit is needed; unzoned or unplatted residential development can still require road-access approval.89
  1. Obtain state approval before drilling a domestic or stock well, and use Wyoming-licensed well and pump contractors.7
  1. Submit the small-wastewater application and complete the required county inspection process for a qualifying septic system.1314
  1. Apply to the Campbell County Building Division for the residential building permit and confirm the required trade permits and inspections.16
  1. If the site is in a mapped flood-hazard area, ask Planning and Zoning for the applicable floodplain resolution and approval path before placing the house.5

What should you check before buying land in Campbell County?

Start with the parcel, not the countywide headline. Confirm zoning and subdivision status with Planning and Zoning because most subdivisions are zoned even though Campbell County lacks uniform countywide zoning.2 Confirm access with Road & Bridge, especially if a new approach from a county road is part of the project.9 For parcels of at least 35 acres that fall under the state large-parcel rule, Wyoming requires recordable ingress, egress and utility easements at least 40 feet wide to a public road unless the buyer specifically waives that protection in a binding, recordable document.16

Budget for water and wastewater before valuing the building site. A groundwater permit must be approved before drilling begins, and domestic and stock applications carry a $50 filing fee.7 Conventional septic conditions are not favorable across much of the county, with only 30.5% of soils rated without severe drain-field limitations.15 Campbell County has mapped special flood-hazard areas, so ask Planning and Zoning whether the parcel needs floodplain review.5

Watch-outs

  • No countywide zoning does not mean no parcel rules: most Campbell County subdivisions are zoned.2
  • A septic permit and inspection remain required even when a property has an agricultural or coal, oil or gas exemption from other building permits.3
  • Campbell County's reviewed guidance confirms temporary RV occupancy only for home construction in a platted, zoned subdivision, so ask Planning and Zoning about any other parcel.45
  • Campbell County has special flood-hazard areas, but the applicable local approval requirements should be confirmed with Planning and Zoning before development.5

Sources

  1. Campbell County - Building Division (2026 county census)
  2. Zoning Regulations, quoted and re-checked
  3. Small Wastewater (Septic) Systems, quoted and re-checked
  4. Zoning FAQs, quoted and re-checked
  5. Campbell County Planning and Zoning Division (campbellcountywy.gov)
  6. Campbell County Building Division (campbellcountywy.gov)
  7. General Processes (Wyoming statewide rule), quoted and re-checked
  8. Zoning FAQs, quoted and re-checked
  9. Campbell County Road & Bridge (campbellcountywy.gov)
  10. Zoning Regulations, quoted and re-checked
  11. Zoning Regulations, quoted and re-checked
  12. Subdivision Regulations, quoted and re-checked
  13. Small Wastewater (Septic) Systems, quoted and re-checked
  14. Chapter 4 Rules Regulating Construction, quoted and re-checked
  15. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  16. Wyoming Statutes, Title 18 (Wyoming statewide rule), quoted and re-checked

Written September 27, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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County locator

Campbell County in Wyoming

49
County map
Campbell County highlighted among the Wyoming counties · colored by Index score

How Campbell County scores

Seclusion86100% ev.
Self-Sufficiency18100% ev.
Admin Boringness4590% ev.
Durability49100% ev.
Property Autonomy74100% ev.
Carry Cost84100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$338kTypical home
0.5%Property tax
$959Land / acre
15"Annual rain
18.9% of yrsSevere drought
8.2 / yr (+6.8)Mid-century 100°F days
19.9 daysMid-century dry spell
0.99" (+6.1%)Mid-century 1-day rain
1.29×Wildfire change factor
100%Forward climate coverage
$2,097Home insurance / yr
2.7% / yrInsurance growth
0.89%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
56,193People within 2 hr
766Radius comparison (15 mi)
9.9People / sq mi
11.9%Federal land
71.6%Land at 15% slope or less
30.5%Septic soil without severe limits
890,990 acWorkable land screen
3.2%Wooded land
9.5 tonsBiomass / forest ac
45.1°FAvg temp

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Answers from the rulebook for Campbell County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Campbell County rules

  • County-wide zoningAbsent (with conditions)

    Countywide zoning in Campbell County, with local zoning applicable in many subdivisions.

    • Campbell County states that it does not have county-wide zoning.
    • Most subdivisions have been zoned and may impose land-use restrictions.
    “Campbell County does not have county-wide zoning; however, most subdivisions have been zoned specifying how the land may be used.”
  • Local zoningVaries (with conditions)

    Aggregate of zoning conditions across unincorporated Campbell County subdivisions and parcels.

    • The county does not administer one uniform countywide zoning code.
    • Most subdivisions have zoning specifying land uses.
    • The Planning and Zoning Division administers land-development regulations in unincorporated areas.
    “Campbell County does not have county-wide zoning; however, most subdivisions have been zoned specifying how the land may be used.”
  • Zoning districtsPublished (with conditions)

    Zoning districts and parcel-specific zoning in Campbell County subdivisions and other zoned areas.

    • The county publishes a zoning map and Chapter 7 zoning regulations.
    • New major and minor subdivisions must obtain approval for an appropriate zoning district.
    • Zoning requirements vary by parcel and district.
    “Once you have determined what Zoning District a parcel is in, you can view the zoning regulations by going to Chapter 7, Zoning Regulations.”
  • Living in an RVTemporary only (with conditions)

    Living in an RV while constructing a house in a platted, zoned subdivision.

    • A Temporary Use Permit may be required.
    • The county FAQ states the permit may authorize RV living for up to one year.
    • Other zoning districts and unzoned parcels were not established by the cited source.

    maximum stated temporary RV occupancy: 1 year (Subject to Temporary Use Permit)

    “Maybe - you can apply for a Temporary Use Permit (TUP) to live in an RV for up to one year.”
  • Who permits septicCounty (with conditions)

    Residential and commercial small wastewater systems with domestic design flows under 2,000 gallons per day.

    • Authority is delegated by the Wyoming Department of Environmental Quality.
    • Other wastewater systems may require Wyoming DEQ permitting.

    maximum domestic design flow: < 2000 gallons per day (Domestic wastewater)

    “Campbell County has delegated authority from the Wyoming Department of Environmental Quality to permit residential and commercial small wastewater (septic) systems with design flows of less than 2000 gallons per day of domestic wastewater.”
  • Septic permitRequired

    All small wastewater systems in Campbell County.

    • The rule applies regardless of zoning classification.
    • Agriculture and coal-oil-gas exemptions from other building permits do not remove the septic requirement.
    • Systems must comply with Wyoming DEQ Water Quality Rules Chapters 11 and 25 and the DEQ-Campbell County delegation agreement.
    “Permits and inspections are required for all small wastewater (septic) systems. This regulation applies to all properties, regardless of zoning classifications and even if the properties have agriculture or coal-oil-gas exemptions from other building permits.”
  • Septic inspectionRequired

    Residential dwellings with small wastewater systems and other systems within Campbell County authority.

    • Residential dwellings with small wastewater systems are permitted, inspected, and approved through the Building Division.
    • If percolation is less than one minute or more than 60 minutes, a Wyoming licensed professional engineer must design and seal the system.
    • Other wastewater systems are submitted to Wyoming DEQ.

    percolation-rate lower threshold: < 1 minute (Professional engineer design and seal required) · percolation-rate upper threshold: > 60 minutes (Professional engineer design and seal required)

    “Permits and inspections are required for all small wastewater (septic) systems.”
  • Subdividing landRegulated (with conditions)

    Major, minor, and other subdivisions in unincorporated Campbell County.

    • Except for Administrative Plats, subdivisions must be approved by the County Planning Commission before final Board of County Commissioners approval.
    • New major and minor subdivisions must apply for and receive an appropriate zoning district.
    • New roads require a maintenance arrangement meeting county criteria.
    • A Wyoming-licensed professional land surveyor must prepare subdivision submittal documents.
    “Except for Administrative Plats, all subdivisions must first be approved by the County Planning Commission before final approval by the Board of County Commissioners.”
  • Driveway accessRequired

    Development on unzoned or unplatted residential property in unincorporated Campbell County.

    • The county FAQ identifies road-access permits as still required even where zoning may not apply.
    • The cited source does not specify the permit's technical standards.
    “While there may not be any zoning regulations that apply to your residential home project, the County still requires permits for Small Wastewater Systems, electrical, plumbing, road access, etc.”
  • Building permitRequired

    Unlike many rural Wyoming counties, Campbell County operates its own Building Division and has adopted Rules Regulating Construction (Chapter 4); a building permit is required for residential construction in unincorporated areas.

    Campbell County - Building Division ↗Scouted from the county site, not yet independently re-checked

Wyoming rules that apply here

  • Well permitRequired

    Construction of a groundwater well or development of a spring in Wyoming, including domestic and stock wells or springs flowing at most 25 gallons per minute.

    • An approved permit must be received before drilling or spring-development activities begin.
    • Springs flowing more than 25 gallons per minute, or springs used for purposes other than domestic or stock watering, must be permitted through the Surface Water Division.
    • Wells must be drilled by a Wyoming licensed water-well drilling contractor and pumps must be installed by a Wyoming licensed pump-installation contractor.
    • The U.W. 5 application must be complete and accurate and accompanied by the appropriate filing fee.
    • Domestic and stock applications are listed with a $50 filing fee.

    spring flow threshold: <= 25 gallons per minute (Higher-flow springs or non-domestic/non-stock use are handled through the Surface Water Division.) · domestic permit filing fee: 50 USD · stock permit filing fee: 50 USD

    “Wells and Springs - Before you drill a well, or develop a spring* (that flows less than or equal to 25 gallons per minute (gpm) and will be used f or D omestic and/or Stock W atering use only), you must submit an "Application for Permit to Appropriate Ground Water", or U.W. 5 Form, to the Ground Water Division and receive an approved permit prior to commencement of any drilling or spring development activities.”
  • Agricultural exemptionAvailable (with conditions)

    Certain land divisions for agricultural purposes under Wyoming's Real Estate Subdivisions Act, primarily in unincorporated areas subject to county administration.

    • The exemption applies unless the method of sale or other disposition is adopted for the purpose of evading the Act.
    • The division must be a sale or other disposition of land for agricultural purposes or affect the alignment of property lines for agricultural purposes.
    • The exempt divisions remain subject to county-board requirements regarding documentation of proper use and implementation of the exemption.
    • A division for an immediate family member has separate conditions, including qualifying family relationship, housing, business, or agricultural purpose, ownership and titling periods, and a five-acre further-division restriction; that family exemption is distinct from the agricultural-purpose exemption.
    • For parcels 35 acres or larger, ingress, egress, and utility easements of at least 40 feet to a public road are required unless specifically waived by the grantee or transferee in a binding and recordable document.

    large-parcel threshold: >= 35 acres (Subject to W.S. 18-5-316 and required easements.) · large-parcel easement width: >= 40 feet (To a public road; waiver must be binding and recordable.)

    “A division which is a sale or other disposition of land for agricultural purposes or affects the alignment of property lines for agricultural purposes;”
  • Building in a floodplainRequired

    Building within the floodplain in Wyoming communities participating in the state-supported National Flood Insurance Program floodplain-management program.

    • The source states that Wyoming currently has 19 participating counties and 66 participating municipalities.
    • Enrollment and participation require a community letter of resolution, an application form, a permitting process, and a compliant ordinance adopted.
    • The permit must meet minimum standards set forth in the applicable local ordinance.
    • The source describes state technical assistance and oversight, while the local ordinance supplies the applicable minimum standards.

    participating counties: 19 counties · participating municipalities: 66 municipalities

    “Currently in Wyoming, there are 19 participating counties and 66 participating municipalities. Enrollment and participation in the program requires a letter of resolution by the community, an application form, a permitting process, and a compliant ordinance adopted. Building within the floodplain requires a permit, and must meet minimum standards set forth in the local ordinance.”
  • Permit processPublished (with conditions)

    Subdivision activity subject to Wyoming Statutes Title 18, Article 5.

    • The requirement applies to land subject to subdivision regulation under the cited article.
    • The permit is obtained from the board of the county in which the land is located.
    • The statute cross-references W.S. 18-5-306 and, if applicable, W.S. 18-5-316.
    • Each board must enforce the article and adopt rules and regulations necessary to implement it.
    “No person shall sell land subject to subdivision regulation under this article, record a plat or commence construction of a subdivision without first obtaining a subdivision permit pursuant to W.S. 18-5-306 or, if applicable, W.S. 18-5-316 from the board of the county in which the land is located.”
  • county zoning authorityGeneral

    County regulation of the location and use of buildings and structures and the use, condition of use or occupancy of land in unincorporated areas of Wyoming.

    • The authority is exercised by each board of county commissioners for the unincorporated area of the county.
    • County zoning may not contravene the zoning authority of an incorporated city or town.
    • A zoning resolution or plan may not prevent a use or occupancy reasonably necessary for extraction or production of mineral resources.
    • A board may not require land use or physical development to be consistent with a local land use plan unless the applicable plan provisions have been incorporated into local zoning regulations.
    • Minimum lot size requirements or other zoning measures may not prevent residential or agricultural uses authorized for land divisions exempt from subdivision requirements under W.S. 18-5-303(a)(i).
    • Private schools meeting the statutory requirements may not be regulated differently from public schools: certification by the professional engineer or architect of record, capacity for fifty (50) students or more, and ownership and operation by a not-for-profit entity.
    “To promote the public health, safety, morals and general welfare of the county, each board of county commissioners may regulate and restrict the location and use of buildings and structures and the use, condition of use or occupancy of lands for residence, recreation, agriculture, industry, commerce, public use and other purposes in the unincorporated area of the county.”
  • county building authorityLimited

    County enforcement and interpretation of local or state fire, building, existing-building, and electrical safety standards, including residential construction in unincorporated areas, when the county obtains local enforcement authority under W.S. 35-9-121.

    • A county must apply for local enforcement authority and receive delegation from the state fire marshal by letter.
    • Before initial delegation, the state fire marshal must determine that the county has adopted minimum standards by ordinance or resolution equivalent to or more stringent than applicable department standards.
    • If the county fails to adopt new standards within six (6) months after department adoption, or fails to maintain standards at least meeting statewide standards, enforcement authority immediately reverts to the department.
    • For fire and building code enforcement, inspectors employed or contracted after July 1, 2010 must be certified by the International Code Council or the International Conference of Building Officials.
    • If electrical-code authority is requested, an electrical inspector must be certified by the International Code Council or International Association of Electrical Inspectors and licensed by Wyoming as a journeyman or master electrician.
    • If the county fails to maintain a required certified inspector, enforcement authority reverts to the department one hundred twenty (120) days after the inspector leaves.
    • A local governmental entity may assume sole plan-review authority and sole construction-inspection authority on approved plans, subject to the statutory certification requirements.
    • If local code provisions are more stringent than adopted state codes, the local code prevails.
    • The statute grants authority to enforce and interpret building standards; it does not establish that every Wyoming county universally requires a residential building permit without county-specific implementation.

    new standards adoption deadline: 6 months (following adoption of new standards by the department) · certification applicability date: July 1, 2010 (inspectors employed or contracted after this date) · authority reversion period after certified inspector leaves: 120 days

    “The state fire marshal shall delegate complete authority to municipalities and counties which apply to enforce and interpret local or state fire, building, existing building standards or electrical safety standards which meet the requirements of this section. The state fire marshal shall notify the governing body of the municipality or county of the minimum standards and requirements of this act and W.S. 16-6-501 and 16-6-502 and transfer jurisdiction and authority by letter.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Owner-builder exemption — Owner-builder construction in Campbell County.
  • Minimum dwelling size — Minimum dwelling size requirements in Campbell County.
  • Building height — Building-height requirements in Campbell County.
  • Tiny homes — Tiny-home occupancy in Campbell County.
  • Off-grid sanitation — Off-grid sanitation systems in Campbell County.
2 more unanswered
  • Mandatory utility hookup
  • Short-term rentals

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.

Living off-grid in Campbell County, Wyoming

Is Campbell County a good place to live off-grid or homestead?

Campbell County scores 49/100 on the Bolthole Index, a solid county profile. Its strengths: deep seclusion — about 766 people within 15 miles and manageable long-term carry cost. Watch-outs: thin water margin (15″/yr rainfall).

Do you need a building permit in Campbell County, Wyoming?

Campbell County generally requires a residential building permit, and it has no county-wide zoning. Onsite septic is permitted by Campbell County Public Works (Building, Planning & Zoning) - delegated by Wyoming DEQ. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Campbell County?

Living in an RV on your own land in Campbell County is allowed on a temporary basis only: Living in an RV while constructing a house in a platted, zoned subdivision. A Temporary Use Permit may be required. The county FAQ states the permit may authorize RV living for up to one year. Confirm with the county before relying on it.

How much does land cost in Campbell County, Wyoming?

Land in Campbell County runs about $959 per acre, based on the latest county data.

What is the water situation in Campbell County?

Campbell County gets about 15" of rain a year, with severe drought in roughly 18.9% of years.

How remote is Campbell County?

A typical private-land location has about 766 people within 15 miles and 212,268 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

Going off-grid in Campbell County means bringing your own water and power. The kit we’d start with:

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How Campbell compares in Wyoming

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