Sheridan County, Montana Genealogy

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United StatesGotoarrow.png Montana Gotoarrow.png Sheridan County

Guide to Sheridan County, Montana ancestry, genealogy and family history, birth records, marriage records, death records, census records, family history, and military records.


County Facts
County seat: Plentywood
Organized: March 24, 1913
Parent County(s): Valley[1]
Neighboring Counties
Daniels  • Divide (ND)  • Roosevelt  • Williams (ND)  • Saskatchewan, Canada
See County Maps
Location Map
Map of Montana highlighting Sheridan County.png
This page is available for adoption

County Information


Sheridan County was created in 1913 and the County Seat Plentywood. It was named in honour of American Civil War General Philip Sheridan.[2] Sheridan County is a county located in the top northeastern part of the state.[3]

County Courthouse

Sheridan County Courthouse
100 W Laurel Avenue
Plentywood, MT 59254
Phone: 406.765.2310
Sheridan County Website

County Clerk has birth, death, burial and land records from 1913;
Clerk Court has marriage, divorce, probate and court from 1913 [4]

Sheridan County, Montana Record Dates

Beginning Dates for Major County Records
Birth* Marriage Death* Court Land Probate Census
* For earlier dates, try... Church | Obituaries | Cemeteries

Record Loss

There is no known history of courthouse disasters in this county.

Boundary Changes

Parent County: created 24 March 1913 from Valley
County seat: Plentywood [5]

Populated Places

The following are locations in the county.[6]

Unincorporated communites
Census-designated places
Ghost towns

Indian Reservation

The largest portion of the Fort Peck Indian Reservation is located in Roosevelt County, with small portions in Daniels, Sheridan, and Valley Counties


Bible Records


Business, Commerce, and Occupations


Cemeteries of Sheridan County, Montana online and in print
Tombstone Transcriptions Online
Tombstone Transcriptions in Print (Often more complete)
List of Cemeteries in the County
See Montana Cemeteries for more information

Census Records

Historical populations
Census Pop.  %±
1920 13,847
1930 9,869 −28.7%
1940 7,814 −20.8%
1950 6,674 −14.6%
1960 6,458 −3.2%
1970 5,779 −10.5%
1980 5,414 −6.3%
1990 4,732 −12.6%
2000 4,105 −13.3%
2010 3,384 −17.6%
Source: [1]

Federal Census Records

Federal Censuses were taken for Montana starting in 1870. For links to federal census indexes, see Montana Census.

Church Records

Church records vary significantly depending on the denomination and the record keeper. They may contain information about members of the congregation, such as age, date of baptism, christening, or birth; marriage information and maiden names; and death date. For general information about Montana denominations, view the Montana Church Records wiki page.

Court Records


Emigration and Immigration

Ethnic, Political, and Religious Groups

Funeral Homes



Land and Property Records

Land and property records can place an ancestor in a particular location, provide economic information, and reveal family relationships. Land records include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See Montana Land and Property for additional information about early Montana land grants. After land was transferred to private ownership, subsequent transactions were usually recorded at the county courthouse, where records are currently housed.

Online Land Records

Local Histories

Local histories are available for Sheridan County, Montana Genealogy. County histories may include biographies, church, school and government history, and military information. For more information about local histories, see the wiki page section Montana Local Histories.

Maps and Gazetteers

Sheridan County


Military Records

Civil War

World War I

For further information see Montana Military Records.

Naturalization and Citizenship


Additional newspapers abstracts can sometimes be found using search phrases such as Sheridan County, Montana Genealogy newspapers in online catalogs like:


See also United States Obituaries for more about finding United States obituaries.

Other Records


Probate Records

In most counties in Montana, probate records have been kept by the county judge. They include wills, inventories, claim registers, inheritance records, probate packets, and dockets. The records are available at the county courthouse.

The FamilySearch Catalog lists films of probate records. To find the records for this county, use the Place Search for Montana, Sheridan - Probate records.

Online Probate Records

School Records

Tax Records

Montana tax records complement land records and can be used to supplement the years between censuses. There may be gaps of several years in the records.

Vital Records

Vital Records consist of births, adoptions, marriages, divorces, and deaths recorded on registers, certificates, and documents. A copy or an extract of most birth and death original records can be purchased from the Montana Department of Public Health and Human Services or the County Clerk's office of the county where the event occurred. For information about marriages, divorces, and requirements for obtaining any vital records, see the CDC Where to Write website.





Research Facilities


Family History Centers

Family History Centers provide one-on-one assistance and free access to premium genealogical websites. In addition, many centers have free how-to genealogy classes.




Sheridan Daybreakers Genealogical Society
60 E. Lake Hwy
Medicine Lake 59247
Call (406) 765-2989


Research Guides


  1. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT: Everton Publishers, 2002).
  2. accessed 11/22/2016
  3.,_Montana accessed 11/22/2016
  4. The Handybook for Genealogists : United States of America, 10th ed., (Draper, UT: Everton Publishers, 2002), p. 418.
  5. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).
  6. Wikipedia contributors, "Sheridan County, Montana," in Wikipedia: the Free Encyclopedia,, accessed 2 Dec 2016.