Welcome to Clark County ...Time Zone: Clark County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time. The community of Dubois is the Seat for Clark County. Clark County was founded in 1919 and was created by taking area from Fremont County. From the Census Estimates for 2019, <1> Clark had a population of 845 people. This is a decrease of 13.78% since the last Census (which gave a population of 980 people in 2010). At the time of the 2010 Census, Clark represented 0.06% of the total population of Idaho. Websites of Interest ...
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