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.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2020 | |||
| 2019 | |||
| 2018 | -12 | -100.00% | |
| 2017 | 12 | -2 | -14.29% |
| 2016 | 14 | 5 | 55.56% |
| 2015 | 9 | -16 | -64.00% |
| 2014 | 25 | 2 | 8.70% |
| 2013 | 23 | 4 | 21.05% |
| 2012 | 19 | -4 | -17.39% |
| 2011 | 23 | 23 | |
| 2010 | 0.00% |