Salmon is located in Lemhi county Idaho with a geographic area of 2.5 square miles. The total population in Salmon is 3,135 with 51.9% male and 48.1% female. Children under age 5 represent 6.3% of the population, under age 18 equal 19.6% of the population and over age 65 is 24.4% of the population. The median household income is $36,038, per capita income is $23,058. There are a total of 1,393 housing units with 65.5% owner occupied. Education includes 33.3% of residents that are high school graduates and 21.4% with a bachelor's degree or higher. The average temperature in Salmon in the summer is 66 degrees, and in the winter 24 degrees.