Clark Fork is a city in Bonner County, Idaho. The population was 536 at the 2010 census.GeographyClark Fork is located at, at an elevation of 2090ft above sea level. According to the United States Census Bureau, the city has a total area of 0.92sqmi, all of it land.ClimateThis climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. According to the Köppen Climate Classification system, Clark Fork has a humid continental climate, abbreviated "Dfb" on climate maps.Demographics2010 censusAs of the census of 2010, there were 536 people, 260 households, and 138 families residing in the city. The population density was 582.6PD/sqmi. There were 308 housing units at an average density of 334.8/sqmi. The racial makeup of the city was 95.5% White, 0.7% Native American, 0.6% Asian, 0.6% from other races, and 2.6% from two or more races. Hispanic or Latino of any race were 0.9% of the population.