Wyoming
Buying Land in Hot Springs County, Wyoming
Hot Springs County is one of the handful of Wyoming counties that never adopted district-based zoning. That doesn't mean no rules apply -- it means the rules look different from a typical zoning code, and it's worth understanding the difference before you assume either extreme.
No Zoning, But Not No Rules: How Land Use Actually Works Here
Hot Springs County has never adopted a conventional, district-based zoning code -- there's no map dividing the county into residential, agricultural, and commercial districts the way Natrona or Laramie County do. Instead, the county's Land Use Plan operates on a simpler default: all rural land in the county is classified as agricultural unless it's been formally changed. Wanting to build a home, start a business, or otherwise change how a parcel is actually used -- from agricultural to residential, or up to industrial or commercial -- requires a land-use-change permit from the county rather than a rezoning application.
That system is genuinely different from Euclidean zoning, and it's worth not over- or under-estimating it. A buyer shouldn't assume the county has no say over land use at all -- the land-use-change permit and the county's subdivision regulations both apply -- but should also understand there's no zoning-district lookup that will tell you in advance what a neighboring parcel can or can't become. The Hot Springs County Planning Office (which administers the Land Use Plan, land-use-change permits, subdivisions, addressing, and septic) is the right first call for any specific parcel.
No Building Code, But a Real County-Run Septic Program
Hot Springs County is one of a small group of Wyoming counties -- alongside Albany, Big Horn, Converse, Crook, Fremont, Goshen, and Weston -- that has not adopted a countywide building code. In practice that means no building permit, no plan review, and no county inspector for most residential construction on unincorporated land. A statewide electrical wiring permit still applies regardless, and it's worth having any new construction built to a recognized code (like the IRC) voluntarily, since there's no county backstop verifying that it was.
Septic is a different story: the Hot Springs County Planning Office holds delegated authority from Wyoming DEQ to permit small wastewater systems directly, under its own septic system regulations covering tank specifications, absorption systems, and related design standards. That's a genuinely enforced, county-run process -- get the permit before you plan on an on-site system, and don't assume the county's light touch on building extends to septic.
What's Actually Here: Oil Fields, Ranching, and a Working Small Economy
Hot Springs County is small (roughly 4,700 residents, down slightly over the past decade) and its economy runs on a mix of energy and tourism, with agriculture playing a smaller but real role on the lower-elevation land around Thermopolis, the county seat. The county has seven producing oil fields -- close to a quarter of the currently operating fields in the entire Bighorn Basin -- including Hamilton Dome, discovered in 1918 and still producing over a century later. Split mineral and surface estates are common in Wyoming generally, and a county with this much legacy oil development is a good candidate to actually check: pull the deed, and look at Wyoming Oil and Gas Conservation Commission records for the specific parcel before assuming the mineral rights come with the land.
Thermopolis itself is also home to the world's largest mineral hot spring at Hot Springs State Park, with a free state-run bath house -- a genuine tourism anchor for the area, though it's a state park amenity rather than something that changes the land-use picture for a nearby rural parcel.
Who to Call Before Buying Land in Hot Springs County
Hot Springs County has no zoning department in the conventional sense -- the Planning Office above covers land classification, land-use-change permits, subdivisions, and septic all at once, since the county doesn't separate these into a zoning office and a health department the way many counties do. Well permitting is handled entirely by the Wyoming State Engineer's Office statewide (see the Wyoming state hub) -- there is no county role. A dedicated online GIS parcel viewer for Hot Springs County was not independently confirmed as part of this research; contact the Assessor's office directly for parcel-specific mapping.
Planning & Zoning
Hot Springs County Planning Office
Land-use-change permits, land classification questions, subdivision and land-division review, county addressing (fire numbers), and confirming what applies to a specific parcel given the absence of district-based zoning.
Septic / Onsite Wastewater
Hot Springs County Planning Office
Septic system permit applications and inspections -- the county holds delegated authority from Wyoming DEQ and administers its own septic system regulations.
Assessor / Property Tax
Hot Springs County Assessor
Current assessed value, agricultural land classification for tax purposes, and property tax questions for a specific parcel.
Recorder / Clerk / Land Records
Hot Springs County Clerk
Recorded deed, easement, and plat history for a specific parcel.
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Get local guidanceSources
- Planner — Hot Springs County, Wyoming Government (accessed 2026-09)
- 2020 Land Use Plan (with 2022 Amendments) — Hot Springs County, Wyoming Government (accessed 2026-09)
- Septic System Regulations — Hot Springs County, Wyoming Government (accessed 2026-09)
- Hot Springs County, Wyoming — WyoHistory.org (Wyoming State Historical Society) (accessed 2026-09)
- Five Wyoming Oil Fields and the Transformation of an Economy — WyoHistory.org (Wyoming State Historical Society) (accessed 2026-09)
- County Zoning, Licensing and Permitting (county regulation survey) — Wyoming Legislature, Joint Corporations, Elections and Political Subdivisions Interim Committee (accessed 2026-09)
Last reviewed 2026-09