Clark County
County
Aquilegia at Nez Perce National Historic Trail.
Location within the U.S. state of Idaho
Idaho's location within the U.S.
Coordinates: 44°17′N 112°23′W / 44.28°N 112.38°W / 44.28; -112.38
Country	United States
State	Idaho
Founded	February 1, 1919
Named for	Sam K. Clark (1857-1933), state senator & pioneer
Seat	Dubois
Largest city	Dubois
Area
• Total	1,765 sq mi (4,570 km2)
• Land	1,764 sq mi (4,570 km2)
• Water	1.0 sq mi (3 km2)  0.1%
Population  (2020)
• Total	790
• Density	0.56/sq mi (0.22/km2)
Time zone	UTC−7 (Mountain)
• Summer (DST)	UTC−6 (MDT)
Congressional district	2nd
Website	www.clark-co.id.gov

Clark County is a county in the U.S. state of Idaho. As of the 2020 census, 790 people lived there.^[1] The county seat and largest city is Dubois.^[2]

• Dubois (county seat)
• Spencer

• Humphrey
• Kilgore

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