Altamont is a city located in Grundy County Tennessee. It is also the county seat of Grundy County. With a 2020 population of 1,115, it is the 225th largest city in Tennessee and the 9883rd largest city in the United States . Altamont is currently growing at a rate of 2.20% annually and its population has increased by 6.70% since the most recent census, which recorded a population of 1,045 in 2010. Altamont reached it's highest population of in . Spanning over 21 miles, Altamont has a population density of 54 people per square mile.
The average household income in Altamont is $58,422 with a poverty rate of 20.12%. The median rental costs in recent years comes to $618 per month, and the median house value is $73,800. The median age in Altamont is 35.7 years, 37 years for males, and 35.4 years for females.