County · code 56021
Laramie CountyWyoming
Laramie County is a county in Wyoming, with its seat at Cheyenne. The county was created on January 9, 1867, by Dakota Territory.
- Founded1867
- County seatCheyenne
- Named forJacques La Ramee
- Land area2,686 sq mi + 1.7 sq mi water
- Population100,512 2020 Census
- Parcels mapped46,704 checked 16 October 2026
Where it is
Laramie 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
Founded in 1867
An old deed may name a county that no longer exists, or a boundary that has since moved.
Laramie County was created by Dakota Territory on January 9, 1867, initially covering all of present Wyoming that was then part of Dakota Territory, plus a small area of present Montana. Between 1867 and 1890, the county lost territory through the creation of Sweetwater, Albany, Carbon, Crook, and Converse counties. Laramie County became a county of the state of Wyoming on July 10, 1890.
- 1867Laramie County created Laramie created by Dakota Territory from non-county area; included all of present Wyoming that was then part of Dakota Territory, plus a small area of present Montana. · Dak. Terr. Laws 1866, 6th sess., ch. 14/p. 43
- 1867Lost territory Laramie lost to creation of Carter (now Sweetwater). Carter not fully organized, attached to Laramie "for representative and judicial purposes."to Carterto Sweetwater· Dak. Terr. Laws 1867, 7th sess., ch. 7/pp. 122-123
- 1868
- 1869Became part of Wyoming Wyoming Territory fully organized; Laramie became a Wyoming Territory county. · Trenholm, 1:83-84, 334
- 1890Became part of Wyoming Laramie became a county in the state of Wyoming. · Wyoming Constitution 1889, art. 12 in Swindler, 10:493; U.S. Stat., vol. 26, ch. 664[1890]/pp. 222-226; Van Zandt, 145
Show all 15 changes
- 1867Laramie County created Laramie created by Dakota Territory from non-county area; included all of present Wyoming that was then part of Dakota Territory, plus a small area of present Montana. · Dak. Terr. Laws 1866, 6th sess., ch. 14/p. 43
- 1867Lost territory Laramie lost to creation of Carter (now Sweetwater). Carter not fully organized, attached to Laramie "for representative and judicial purposes."to Carterto Sweetwater· Dak. Terr. Laws 1867, 7th sess., ch. 7/pp. 122-123
- 1868Boundary clarified Laramie boundaries redefined (no change).no change· Dak. Terr. Laws 1867, 7th sess., ch. 8/pp. 123-124
- 1868Changed In early 1868, Carter (now Sweetwater) fully organized, detached from Laramie.CarterSweetwater· Trenholm, 1:331
- 1868
- 1869Became part of Wyoming Wyoming Territory fully organized; Laramie became a Wyoming Territory county. · Trenholm, 1:83-84, 334
- 1871Changed Territorial Legislature authorized Laramie to gain from Albany. On 14 December 1871 the Governor vetoed the bill, but the legislature passed it over the Governor's veto. On 12 November 1872, the Wyoming Territory Supreme Court ruled the act was void and did not comply with the Organic Act of Wyoming Territory. · Wyo. Terr. Laws 1871, 2d leg., pp. 124-125; "Brown v. Nash" and "Union Pacific Railroad Company v. Carr and Boswell," in Wyoming Rpts., 1:85-103; Homsher, 193-195
- 1875Lost territory Laramie lost to creation of Crook. Crook not fully organized, part attached to Laramie "for judicial and all other purposes." · Whitehead, 198-201
- 1885
- 1886Boundary clarified Laramie boundaries redefined (no change).no change· Wyo. Terr. Laws 1886, 9th leg., ch. 105/p. 393
- 1888Lost territory Laramie lost to creation of Converse. Converse not fully organized, part attached to Laramie for administrative and judicial purposes. · Wyo. Terr. Laws 1888, 10th leg., ch. 90, sec. 60/p. 217
- 1888
- 1890Became part of Wyoming Laramie became a county in the state of Wyoming. · Wyoming Constitution 1889, art. 12 in Swindler, 10:493; U.S. Stat., vol. 26, ch. 664[1890]/pp. 222-226; Van Zandt, 145
- 1911Lost territory Laramie lost to creation of Goshen and Platte. Goshen and Platte not fully organized, attached to Laramie "for judicial, revenue and elective purposes." Laramie lost to Albany when boundary was adjusted to run on federal land survey lines. Technically, Goshen and Platte had been created on 9 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., chs. 7, 10/pp. 6-7, 12-13 and ch. 77, secs. 1, 8/pp. 102-103, 108
- 1913
Land and parcels
What the maps cover in Laramie
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 46,704 parcels from Laramie County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 16 October 2026 -
Address points Missing
No public address points layer found for Laramie 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
Laramie 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
Laramie 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 Laramie County.
See your own lot on these maps
Open Laramie 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 Laramie County
- When was Laramie County founded?
- Laramie County was founded in 1867, and named after Jacques La Ramee.
- What is the county seat of Laramie County?
- The county seat of Laramie County is Cheyenne.
- Is there an online parcel map for Laramie County?
- Yes. Laramie County publishes a parcel map of 46,704 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Laramie County's boundary or name changed?
- Laramie County was created in 1867. Since then the Atlas of Historical County Boundaries records 12 later changes, chiefly involving Albany County, Carter County and Converse County.
- Is my lot in a flood zone?
- We do not have flood maps for Laramie County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby