Thermopolis Population

1900–2026

2,719

2026 projection

0.5% since 2020 (decrease)

01K2K3K4K1900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual 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 Thermopolis. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20262,719-20.07%
20252,721-60.22%
20242,727-220.80%
20232,749+220.81%
20222,727+50.18%
20212,722-120.44%
20202,734-291.05%
20192,763-873.05%
20182,850-872.96%
20172,937+180.62%

Showing 10 of 28 years.

Thermopolis Demographics

40.5median age

Median age

Female39.8 yrs
Male41.6 yrs

Adults

2,106
654 seniors · 31%1,452 other adults

Sex

Female 50.7% · 1,374Male 49.3% · 1,335

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 27 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

Thermopolis Income

$65,208median household income

Median household income

$65,208

Half of households earn more, half earn less

Median earnings

$41,472

Typical yearly pay for a worker 25 or older.

Poverty rate

18.6%

About 1 in 5 residents

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

Thermopolis Marital Status

60% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married60%61%59%
Never married17%19%15%
Divorced15%12%18%
Widowed8%8%7%
Separated<1%<1%1%

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