Laramie County was originally created in 1867 as a county within the Dakota Territory. The county was named for Jacques La Ramee, a French-Canadian fur-trader. In late 1867, Laramie County lost some territory when Sweetwater County was created. In 1868, Laramie County also lost territory when Albany County and Carbon County were created. Laramie County became a part of the Wyoming Territory when the territorial government formed in 1869. Crook County was created with land ceded by Laramie County in 1875. Just a couple years later in 1888, Converse County was also formed from a portion of Laramie County. In 1911, Goshen and Platte Counties were formed from another portion of Laramie County. At that point, it finally achieved its current boundaries.
Cheyenne is the capital and most populous city of the US state of Wyoming and is the county seat of Laramie County. It is the principal of Cheyenne, Wyoming, Metropolitan Statistical Area which encompasses all of Laramie County. The population was 59,466 at the 2010 census. Cheyenne is the northern terminus of the fast-growing, extensive Front Range Urban Corridor. Cheyenne is situated on Crow Creek and Dry Creek. The Cheyenne, Wyoming Metropolitan Area had a 2010 population of 91,738, making it the 354th most populated metropolitan area in the United States.