+ Clark County IDGenWeb Project

Clark County Idaho

a part of the IDGenWeb Project & USGenWeb Project

Welcome to
Clark County, Idaho!

Clark County was established ninety-four years ago on February 1, 1919, from the parent county of Fremont, encompassing a total land area of 1,764 square miles. Clark County was named for the first State Senator from Clark County, Sam K. Clark, an early settler on Medicine Lodge Creek.


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Question(s)? Contact the Interim County Coordinatior


To see a brief overview of what is available on this site, click here.

Clark County marriage affidavits, naturalization records, declarations of intention, deeds, patents, brands and marks, mining records, probate records, and estate files located at the Clark County courthouse. Time period varies by record type. Additional records will be added to this collection as they become available.



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