Search For Your Ancestors

Jefferson County, Idaho

Jefferson County was established on February 18, 1913 from Fremont County.

Currently the Jefferson County Seat can be found in Rigby plus the county government website is

Areas bordering Jefferson County are Clark CountyFremont CountyMadison CountyBonneville CountyBingham CountyButte County.

Jefferson County includes Federal Census Schedules to guide in exploring your family tree. Federal Population Schedules are present for 192019301940. There are free online and printable census forms to aid with your research.

Jefferson County Society and Family History Resources

A list of Jefferson County Historical  and Genealogical Societies, Forums, Message Boards, Libraries, Archives.

Jefferson County Courthouse and Government Records

Researchers often overlook the great importance of Jefferson County court, probate, and land documents as a source of ancestry and genealogy information. Hidden away in Idaho courthouses and archives everywhere are the hopes and dreams and worries of the many Idaho citizens. The chances are great that your potential ancestors have left a in-depth record of at least some aspects of their lives in the Jefferson County court records. Even if your forefathers is not brought up in a Court case, consider all of the other methods which could have lead to him or her appearing in court records.

Jefferson County Links

The following are links to Genealogy and family history, Records and Resources associated to Jefferson County. Most of these genealogy links fall into 3 categories: Business oriented Sites, Private Sites or Organization Sites. Some have free access some have to have a payment. This is merely a collection which has been collected or submitted. I do not recommend or promote one genealogy site over another. Feel free to present your own most liked Jefferson County genealogy or family history affiliated sites.

Jefferson Co. ID Books, Newspapers & Publications

Jefferson Co. ID Birth, Marriage & Death Records

Jefferson Co. ID Court, Probate Land and Tax Records

Jefferson Co. ID Census Records

Jefferson Co. ID Cemeteries & Church Records

Jefferson Co. ID Family Websites, Pictures & Histories

Jefferson Co. ID General and History Websites

Jefferson Co. ID Maps, Atlases & Gazetteers

Jefferson Co. ID Military Records

Jefferson Co. ID Schools & Directories