Wyoming County records vary widely from county to county in both quality and quantity. Some have been carefully preserved while others have been much abused and neglected. Some Wyoming records have simply disappeared.
For genealogists doing research in Wyoming there is no effective replace for an on-site search of county courthouse records.
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.