Tetonia is a city located in Teton County Idaho. With a 2020 population of 290, it is the 154th largest city in Idaho and the 15432nd largest city in the United States . Tetonia is currently growing at a rate of 0.35% annually and its population has increased by 7.81% since the most recent census, which recorded a population of 269 in 2010. Tetonia reached it's highest population of 290 in 2021. Spanning over 1 miles, Tetonia has a population density of 510 people per square mile.
The average household income in Tetonia is $46,218 with a poverty rate of 6.60%. The median rental costs in recent years comes to $583 per month, and the median house value is $181,300. The median age in Tetonia is 43.1 years, 36.1 years for males, and 43.4 years for females.