Altamont is a town located in Grundy County, Tennessee. Altamont has a 2025 population of 1,206 . It is also the county seat of Grundy County . Altamont is currently growing at a rate of 1.43% annually and its population has increased by 7.58% since the most recent census, which recorded a population of 1,121 in 2020.
The average household income in Altamont is $84,269 with a poverty rate of 24.14%. The median age in Altamont is 49 years: 47.2 years for males, and 51 years for females. For every 100 females there are 116.5 males.
Data after 2023 is projected based on recent change
The racial composition of Altamont includes 94.45% White, and smaller percentages for Black or African American, Native American and multiracial populations.
White (94.45%)
Two or more races (3.27%)
Black or African American (1.91%)
Native American (0.36%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,039 | 94.45% |
| Two or more races | 36 | 3.27% |
| Black or African American | 21 | 1.91% |
| Native American | 4 | 0.36% |
Married
Widowed
Divorced
Separated
Never Married
Altamont's average per capita income is $22,361. Household income levels show a median of $40,221. The poverty rate stands at 24.14%.
Name | Median | Mean |
|---|---|---|
| Married Families | $50,855 | - |
| Families | $42,206 | $102,758 |
| Households | $40,221 | $84,269 |
| Non Families | $14,398 | $18,422 |
Average Income
Median Household Income
Poverty Rate