Salmon is a city located in Lemhi County Idaho. It is also the county seat of Lemhi County. With a 2020 population of 3,241, it is the 44th largest city in Idaho and the 6020th largest city in the United States . Salmon is currently growing at a rate of 1.12% annually and its population has increased by 4.15% since the most recent census, which recorded a population of 3,112 in 2010. Salmon reached it's highest population of 3,308 in 1980. Spanning over 3 miles, Salmon has a population density of 1,293 people per square mile.
The average household income in Salmon is $53,992 with a poverty rate of 13.78%. The median rental costs in recent years comes to $631 per month, and the median house value is $123,200. The median age in Salmon is 42.5 years, 41.2 years for males, and 46.7 years for females.