County · code 56005
Campbell CountyWyoming
Campbell County is a county in Wyoming with its seat in Gillette, formed in 1911.
- Founded1911
- County seatGillette
- Named forJohn Allen Campbell
- Land area4,802 sq mi + 4.3 sq mi water
- Population47,026 2020 Census
- Parcels mapped20,611 checked 15 October 2026
Where it is
Campbell on the map of Wyoming
Wyoming has 23 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1911 from Crook County and Weston County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Campbell County was created on February 21, 1911, from parts of Crook County and Weston County, and named after John Allen Campbell. Initially attached to Crook and Weston counties for judicial, revenue, and election purposes, Campbell County became fully organized and independent on May 23, 1911.
- 1911Campbell County created Campbell created from Crook and Weston. Campbell not fully organized, attached to Crook and Weston "for judicial, revenue and election purposes." Technically, Campbell had been created on 13 February 1911, but the several boundary laws of February 1911 were not passed in the intended sequence and mapping them in strict chronological order is not practical. By treating the law of 21 February as the basic structure that the other laws modify, the mapping reflects the intent of the legislature. · Wyo. Laws 1911, 11th leg., ch. 14/pp. 15-16
- 1911
Land and parcels
What the maps cover in Campbell
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 20,611 parcels from Campbell County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 15 October 2026 -
Address points Missing
No public address points layer found for Campbell County yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Campbell by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Campbell County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Campbell County.
See your own lot on these maps
Open Campbell County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Campbell County
- When was Campbell County founded?
- Campbell County was founded in 1911, formed from Crook County and Weston County, and named after John Allen Campbell.
- What is the county seat of Campbell County?
- The county seat of Campbell County is Gillette.
- Is there an online parcel map for Campbell County?
- Yes. Campbell County publishes a parcel map of 20,611 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Campbell County's boundary or name changed?
- Campbell County was created in 1911 from Crook County and Weston County. Since then the Atlas of Historical County Boundaries records 1 later change, chiefly involving Crook County and Weston County.
- Is my lot in a flood zone?
- We do not have flood maps for Campbell County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby