Wyoming County Resources

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This entry was originally written by Dwight A. Radford in Red Book: American State, County, and Town Sources.

This article is part of
Wyoming sil.png
the Wyoming Family History Research series.
History of Wyoming
Wyoming Vital Records
Census Records for Wyoming
Background Sources for Wyoming
Wyoming Maps
Wyoming Land Records
Wyoming Probate Records
Wyoming Court Records
Wyoming Tax Records
Wyoming Cemetery Records
Wyoming Church Records
Wyoming Military Records
Wyoming Periodicals, Newspapers, and Manuscript Collections
Wyoming Archives, Libraries, and Societies
Ethnic Groups of Wyoming
Wyoming County Resources
Map of Wyoming
County Map of Wyoming

An important research consideration for Wyoming is that its counties, as they exist today, went through many changes in a relatively short period of time. When organized, it included four counties from Dakota Territory—Albany, Carbon, Carter, and Laramie—and Green County from Utah Territory. When the territory was organized on 19 May 1869, Uinta County was created from the formally unorganized portions of Utah and Idaho. At that time, Carter County was renamed Sweetwater. By 1923, Wyoming had been subdivided into its present twenty-three counties.

In addition to the territorial and homestead land records held by the Wyoming State Archives, the county clerk holds land records filed by county after the date of formation. District clerks are to be addressed for court and probate records, though most will also be found at the Wyoming State Archives. No county birth or death records exist before mandatory statewide recording, but most counties hold marriage records. Some even date before incorporation.

Contact the archives prior to conducting extensive research on the county level to determine which county records have been deposited at the Wyoming State Archives and which are only available on a county level. See also current holdings at http://wyoarchives.state.wy.us/databases/county/county.htm.

County addresses in the following charts were taken from the National Association of Counties website at www.naco.org. Dates for county records were taken from the Wyoming State Archives website at http://wyoarchives.state.wy.us.


Map County County Address Date Formed Parent County(ies) Birth Marriage Death Land Probate Court
G6 Albany 525 Grand Ave., Laramie 82070-3836 1868 original (Dakota Territory) —— 1868 1899 1868 1869 1869
D1 Big Horn 420 W. C St., Basin 82410-0031 created 1890 organized 1897 Fremont/Johnson/Sheridan —— 1897 —— 1885 1897 1897
H2 Campbell 500 S. Gillette Ave. Ste. 212, Gillette 82716-4239 1911 Crook/Weston —— 1913 —— 1885 1913 1913
F6 Carbon P.O. Box 6, Rawlins 82301-0006 1868 original(Dakota Territory) —— 1870 —— 1867 1875 1870
Carter 1867 (renamed Sweetwater, 1869) Original(Dakota Territory) —— 1870 —— 1867 1875 1870
H4 Converse 107 N. 5th St. Ste. 114, Douglas 82633-2448 1888 Albany/Laramie —— 1888 —— 1882 1889 1888
J1 Crook P.O. Box 37, Sundance 82729-0037 created 1875 organized 1885 Laramie/Albany —— 1885 —— 1884 1886 1886
D4 Fremont 450 N. Second, Rm. 220, Lander 82520-2360 1884 Sweetwater —— 1884 —— 1882 1884 1884
J6 Goshen P.O. Box 160, Torrington 82240-0160 created 1911 organized 1913 Laramie —— 1913 —— 1913 1913 1913
D3 Hot Springs 415 Arapahoe St., Thermopolis 82443-2731 created 1911 organized 1913 Fremont/Big Horn/Park —— 1913 —— 1893 1912 1911
F2 Johnson 76 N. Main St., Buffalo 82834-1847 created 1875 (as Pease; renamed 1879) organized 1877 Carbon/Sweetwater —— 1881 —— 1881 1885 1881
J7 Laramie 310 W. 19th St., Ste. 300, Cheyenne 82001-2799 1867 original (Dakota Territory) —— 1868 —— 1867 1868 1868
A5 Lincoln 925 Sage Ave., Kemmerer 83101-0670 1911 Uinta —— 1913 —— 1871 1899 1913
F4 Natrona P.O. Box 863, Casper 82602-0863 created 1888 organized 1890 Carbon —— 1890 —— 1880 1891 1890
J4 Niobrara 424 S. Elm St., Lusk 82225 created 1911 organized 1913 Converse —— 1889 —— 1883 1913 1911
C1 Park 1002 Sheridan Ave., Cody 83414-3598 created 1909 organized 1911, Big Horn —— 1911 —— 1911 1911 1911
Pease 1875 (renamed Johnson,1879) Carbon/Sweetwater
H6 Platte 800 Ninth St./P.O. Box 728, Wheatland 82201-0728 1911 Laramie —— 1913 —— 1873 1913 1913
F1 Sheridan 224 S. Main St., Ste. B-2, Sheridan 82801-4833 1888 Johnson —— 1888 —— 1887 1888 1888
B4 Sublette P.O. Box 250, Pinedale 82941-0250 created 1921 organized 1923 Fremont/Lincoln —— 1923 —— 1922 1923 1923
C6 Sweetwater P.O. Box 730, Green River 82935-0730 1867 (as Carter; renamed 1869) original(Dakota Territory) —— 1870 —— 1867 1868 1867
A3 Teton P.O. Box 3594, Jackson 83001-3594 created 1921 organized 1922 Lincoln —— 1922 —— 1902 1923 1922
A7 Uinta 225 Ninth St., Evanston 82930-3415 1869 original (Utah and Idaho Territories) —— 1872 —— 1861 1861 1872
E3 Washakie P.O. Box 260, Worland 82401-0260 created 1911 organized 1913 Big Horn —— 1913 —— 1906 1913 1912
J3 Weston 1 W. Main St., Newcastle 82701-2121 1890 Crook —— 1890 —— 1885 1890 1891