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United States Gotoarrow.png Wyoming Gotoarrow.png Big Horn County

Big Horn County, Wyoming is a county in northern Wyoming

Big Horn County Wyoming.png
Hand and keyboard.jpg Wyoming
Online Records


County Courthouse

Big Horn County Courthouse
420 W C Street
Basin, WY 82410
Phone: 307.568.2357 

County Clerk has marriage and land records from 1896;
Clerk District Court has divorce, probate and court records from 1896[1]


Parent County

1890--Big Horn County was created 12 March 1890 from Fremont, Johnson, and Sheridan Counties.
County seat: Basin [2]

Boundary Changes

Record Loss


Populated Places

Basin Deaver Greybull Lovell Penrose
Burlington Emblem Hyattville Manderson Quality (hist.)
Byron Flitners Corner Ionia Meadow Lark Lake Shell
Cowley Frannie Kane Otto

Neighboring Counties




For tips on accessing Big Horn County, Wyoming census records online, see: Wyoming Census.


LDS Ward and Branch Records

  • Basin, Belfry, Burlington, Byron, Cody, Cowley, Greybull, Ionia, Lovell, Lovell West and Otto.



Local Histories





The bulk of the probate case files from the 1890's to the 1940's have been transferred to the Wyoming State Archives in Cheyenne. Check their website for additional details.


Vital Records

1,936 marriages from 20 Jan 1897 to 13 Nov 1922 are listed on the Western States Marriage Index.

Societies and Libraries

Family History Centers

Web Sites


  1. The Handybook for Genealogists : United States of America, 10th ed., (Draper, UT: Everton Publishers, 2002), p. 766. Big Horn County, Wyoming
  2. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).


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