Altamont Population

2010–2026

1,220

2026 projection

9.2% since 2020 (increase)

02004006008001K1.2K1.4K201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Altamont. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20261,220+171.41%
20251,203+171.43%
20241,186+443.85%
20231,142+161.42%
20221,126+282.55%
20211,098-191.70%
20201,117-30.27%
20191,120+312.85%
20181,089+131.21%
20171,076+100.94%

Showing 10 of 17 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Altamont is growing faster than Grundy County, Tennessee, and the U.S.

  • Altamont+7.7%
  • Tennessee+5.6%
  • Grundy County+4.2%
  • United States+3.1%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Altamont Demographics

47.3median age

Median age

Female51 yrs
Male44.9 yrs

Adults

1,043
241 seniors (65+) · 23% of adults802 other adults

Sex

Female 47.8% · 632Male 52.2% · 690

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 13 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Altamont Income

$41,373median household income

Median household income

$41,373

Half of households earn more, half earn less

Median earnings

$21,914

Typical yearly pay for a worker 25 or older.

Poverty rate

15.9%

About 1 in 6 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Altamont Marital Status

41% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married41%36%47%
Never married26%40%13%
Divorced12%10%13%
Widowed12%5%19%
Separated9%9%9%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201