Salmon is a city in Lemhi County, Idaho. The population was 3,112 at the 2010 census. The city is the county seat of Lemhi County. Located in the Lemhi River valley, Salmon is home to the Sacajawea Interpretive, Cultural and Education Center, which focuses on Lemhi Shoshone culture, as well as the interaction between Sacagawea and other Shoshone and Lewis and Clark. History The Lewis and Clark Expedition crossed the Continental Divide at Lemhi Pass, to the southeast of Salmon. They followed the Salmon River through the present site of the city, then ascended the north fork of the river, at the present-day town named after the confluence, to cross into present-day Montana near Lost Trail Pass. The sole female in the party, Sacagawea, was born in the Lemhi Valley near Salmon. The Sacajawea Interpretive, Cultural and Educational Center was opened in Salmon in August 2003. From 1910 to 1939, Salmon was the western terminus of the now-defunct Gilmore and Pittsburgh Railroad. Geography Salmon is located at (45.178110, –113.902660). The elevation is above sea level. According to the United States Census Bureau, the city has a total area of , of which, is land and is water. The Salmon River passes through Salmon; whitewater rafters and other people interested in outdoor recreation have brought additional economic activity to Salmon. The Lemhi River flows into the Salmon River at Salmon. Climate Salmon experiences a semi-arid climate (Köppen BSk) with cold, dry winters and hot, slightly wetter summers. Demographics 2010 census At the 2010 census there were 3,112 people, 1,420 households, and 807 families living in the city. The population density was . There were 1,628 housing units at an average density of . The racial makeup of the city was 96.5% White, 0.3% African American, 0.5% Native American, 0.6% Asian, 0.5% from other races, and 1.6% from two or more races. Hispanic or Latino of any race were 2.6%. Of the 1,420 households 25.6% had children under the age of 18 living with them, 41.4% were married couples living together, 11.3% had a female householder with no husband present, 4.1% had a male householder with no wife present, and 43.2% were non-families. 37.9% of households were one person and 16.3% were one person aged 65 or older. The average household size was 2.14 and the average family size was 2.80. The median age was 45.7 years. 21.3% of residents were under