There are 23 counties that exist in Wyoming. Each one holds records that may include: Land, Estates, Taxes, Vital Records, Divorces, Naturalizations, Voter Registration, Court Records. Other records may also be included. However, other resources do need to be consulted.

Map of Wyoming Counties
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Map of Wyoming Counties

The Wyoming State Archives holds several homestead land records and territorial records for the state of Wyoming. However, county clerk offices also hold several important records, especially land records beginning at the date that the county was formed.

Probate and court records, meanwhile, can be found in the offices of the district court clerks. Although, many are also on file with the Wyoming State Archives.

Although many counties have early marriage records on file, there are no death or birth records available at the county level. Some marriage records even exist from the time before Wyoming was incorporated.

It’s always best to consult the Wyoming State Archives first. They can provide information on which records they hold and which records must be researched in specific county offices. See also a list of links to county and county seat government run websites.

Wyoming has 3 counties that no longer are in existence. See the List of Old Former / Extinct Wyoming Counties.

List of Wyoming Counties with Burned Courthouses

Wyoming burned county courthouse
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The damage to Wyoming courthouses tremendously has a affect on genealogists in almost every way. Not only are most of these historic structures torn from all of our lifetimes, so are the documents they kept: marriage, wills, probate, land records, as well as others. Once destroyed they are gone forever. Even though they have already been put on mircofilm, computers and film burn too. The most sad aspect of this is the reason that virtually all of our courthouses are destroyed at the hands of arsonist. Though, not all records were destroyed. A number of Wyoming counties have dealt with a loss of records due to courthouse fires, floods, and theft.

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List of Wyoming Counties

List of Wyoming Counties

CountyDate FormedParent CountyCounty Seat
Albany1868One of the original five countiesLaramie
Big Horn1890Sheridan County, Johnson County, and Fremont CountyBasin
Campbell1911Weston County and Crook CountyGillette
Carbon1868One of the original five counties.Rawlins
Converse1888Albany County and Laramie CountyDouglas
Crook1875Laramie County and Albany CountySundance
Fremont1884Sweetwater CountyLander
Goshen1911Laramie CountyTorrington
Hot Springs1911Fremont County, Big Horn County, and Park CountyThermopolis
Johnson1875Carbon County and Sweetwater CountyBuffalo
Laramie1867One of the original five countiesCheyenne
Lincoln1911Uinta CountyKemmerer
Natrona1888Carbon CountyCasper
Niobrara1911Converse CountyLusk
Park1909Big Horn CountyCody
Platte1911Laramie CountyWheatland
Sheridan1888Johnson CountySheridan
Sublette1921Fremont County and Lincoln CountyPinedale
Sweetwater1867One of the original five countiesGreen River
Teton1921Lincoln CountyJackson
Uinta1869One of the original five countiesEvanston
Washakie1911Big Horn CountyWorland
Weston1890Crook CountyNewcastle
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