Lost River is a city located in Idaho. Lost River has a 2020 population of . Lost River is currently declining at a rate of annually and its population has decreased by since the most recent census, which recorded a population of in 2010. Lost River reached it's highest population of 25 in 2014.
The average household income in Lost River is - with a poverty rate of NaN%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Lost River is 0 years, 0 years for males, and 0 years for females.