Thermopolis, WY Demographics

Population 3,358 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Thermopolis, WY map of median age by neighborhood
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Population and households in Thermopolis

Household size in Thermopolis

Household size, people per household
PeriodThermopolisWyomingU.S.
2006–102.152.492.68
2010–142.092.532.73
2015–192.122.502.71
2020–242.172.392.65
Change+0.03−0.09−0.03
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Thermopolis is a place of small households, averaging 2.17 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Thermopolis

Median age, years
PeriodThermopolisWyomingU.S.
2006–1047.638.137.7
2010–1449.338.338.6
2015–1945.539.439.6
2020–2442.440.240.1
Change−5.1+2.1+2.3
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Thermopolis skews a little older than the country: its median age is 42.4, against 40.1 nationally. Since 2006–10, the median age has dropped from 47.6, but in a place this small, survey estimates can swing a lot from one release to the next.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Thermopolis

Single-parent households, % of households
PeriodThermopolisWyomingU.S.
2006–107.5%9.8%12.3%
2010–148.3%9.8%12.3%
2015–195.9%9.8%11.6%
2020–249.7%9.2%11.6%
Change+2.2 pts−0.6 pts−0.6 pts
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Single parents head about one in ten households in Thermopolis (9.7%), a little below the national share of 11.6%. That is in line with the rest of Wyoming.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Thermopolis

Renters in Thermopolis

Renters, % of occupied homes
PeriodThermopolisWyomingU.S.
2006–1035.7%29.8%33.3%
2010–1427.0%30.7%35.6%
2015–1923.4%29.6%36.0%
2020–2427.2%28.2%34.8%
Change−8.5 pts−1.6 pts+1.5 pts
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Most households in Thermopolis own their homes; 27.2% rent, below the national share of 34.8%. The picture is much the same across Wyoming. More than half of owners (55.6%) have paid off their mortgages, well above the national share of 39.8%.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Thermopolis

Vacant homes, % of all homes
PeriodThermopolisWyomingU.S.
2006–1015.3%13.6%11.4%
2010–1411.9%14.0%11.4%
2015–1919.1%16.0%11.1%
2020–2412.8%12.1%9.6%
Change−2.5 pts−1.6 pts−1.8 pts
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Vacancy runs high in Thermopolis: 12.8% of homes are empty, against 9.6% nationally. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Wyoming as a whole looks much the same.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Thermopolis

Age of homes, median year built
PeriodThermopolisWyomingU.S.
2006–10196119751974
2010–14196419771975
2015–19196719791977
2020–24197019811980
Change+8+6+6
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Thermopolis is a place of older homes: half were built before 1970, while the national median is 1980. That means established neighborhoods, and more houses that may need updating.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Thermopolis

Rent, per month
PeriodThermopolisWyomingU.S.
2006–10$614$744$965
2010–14$682$862$1,040
2015–19$718$934$1,213
2020–24$1,151$1,091$1,571
Change+$537+$347+$606
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A typical rental in Thermopolis costs $1,151 a month with utilities, well below the national median of $1,571. Even so, rents here are higher than in Wyoming as a whole ($1,091). Rent takes 37.4% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Thermopolis

Bachelor's degrees in Thermopolis

Bachelor's degrees, % of adults 25+
PeriodThermopolisWyomingU.S.
2006–1022.2%24.3%28.4%
2010–1419.5%25.5%29.6%
2015–1924.5%27.5%32.1%
2020–2427.7%30.6%35.6%
Change+5.4 pts+6.4 pts+7.2 pts
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College degrees are less common in Thermopolis than nationally: 27.7% of adults 25 and older have a bachelor's or higher, against 35.6%. Wyoming as a whole looks much the same.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Thermopolis

High school graduates, % of adults 25+
PeriodThermopolisWyomingU.S.
2006–1090.1%91.6%84.9%
2010–1488.9%92.5%86.1%
2015–1994.8%93.1%87.7%
2020–2495.0%94.1%89.3%
Change+5.0 pts+2.5 pts+4.3 pts
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High school completion is high in Thermopolis: 95.0% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. That is in line with the rest of Wyoming.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Thermopolis

Unemployment, % of the labor force
PeriodThermopolisWyomingU.S.
2006–101.6%4.4%8.1%
2010–142.2%5.1%9.4%
2015–193.7%4.6%5.6%
2020–242.2%3.8%5.4%
Change+0.6 pts−0.6 pts−2.7 pts
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The job market in Thermopolis has been strong: just 2.2% of the labor force was out of work and looking, well below the national rate of 5.4%. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Thermopolis compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Thermopolis2.1742.49.7%27.2%12.8%1970$1,15127.7%95.0%2.2%
East Thermopolis2.1443.52.6%31.3%12.3%1982$46320.8%97.4%3.1%
Red Lane2.3745.83.6%24.1%11.0%1985$1,37226.6%93.4%6.9%
Lucerne2.2144.22.9%29.3%11.9%1983$72422.5%96.3%4.2%
Kirby2.2445.32.9%26.1%12.4%1982$55320.7%97.2%2.6%
Hamilton Dome2.3845.93.6%23.9%11.0%1985$1,40026.8%93.2%7.0%
Worland2.2543.77.7%25.7%12.7%1968$72621.5%89.5%3.1%
Shoshoni2.8837.614.5%20.6%18.7%1982$90612.0%91.6%1.3%
Grass Creek2.3348.83.9%18.5%11.2%1982$1,14822.5%94.3%4.8%
Pavillion2.7740.47.4%13.2%14.6%1983$93822.1%96.0%5.0%
Sand Draw3.8823.825.4%28.1%13.8%1989$50611.4%90.9%7.1%

All figures 2020–24.

Cities with similar populations: Altoona, FL · Zionsville, PA · Linn Creek, MO · Lake Royale, NC · Ingram, PA · Howard Lake, MN · Holtwood, PA · Holland, NY · Hillsboro, WI · Heavener, OK

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Thermopolis. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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