Thermopolis, Wyoming

Thermopolis population, 2020 to 2024

Thermopolis added 4 residents from July 2020 to July 2024, a change of +0.1%. In the latest year it moved by -11.

Thermopolis covers 2.39 square miles of land and 0.08 of water, for 1,150 people per square mile of land. The median Wyoming place of 5,000+ has 1,493, so Thermopolis is less dense than the typical town.

What county Thermopolis is in

All of Thermopolis's residents live in Hot Springs County, which had 4,625 residents in 2024. Thermopolis holds 59.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Thermopolis

1 ZIP Code Tabulation Area (ZCTA) overlaps Thermopolis by at least 10% of the ZCTA's or the town's land: 82443. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a town that annexed land after 2020 may reach into ZIP codes not listed here.

Where Thermopolis is

The Census internal point of Thermopolis is at 43.647600, -108.214500. Cheyenne, the capital, is 244.9 miles SE in a straight line. The nearest larger place is Worland, WY (4,765 people), 28.6 miles away. The nearest city of 100,000 or more is Billings, MT, 148.9 miles away.

Daylight in Thermopolis

At 43.65° N, Thermopolis gets about 15 h 27 min of daylight around the June solstice and 8 h 56 min around the December solstice, a swing of 6 h 31 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Thermopolis

The eight nearest incorporated places of 1,000+ in Wyoming, measured between internal points. The closest is Worland, 28.7 miles away, with 4,765 people.