Population 3,787 · Census ACS 2020–24
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Population and households in Eureka
Household size in Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 2.33 | 2.41 | 2.68 |
| 2010–14 | 2.20 | 2.45 | 2.73 |
| 2015–19 | 2.59 | 2.44 | 2.71 |
| 2020–24 | 2.59 | 2.44 | 2.65 |
| Change | +0.26 | +0.03 | −0.03 |
Households in Eureka average 2.59 people, about the same as the country as a whole (2.65). The typical household here is bigger than in Montana overall, where it has 2.44 people. Household size has climbed from 2.33 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.
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 Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 42.0 | 39.9 | 37.7 |
| 2010–14 | 44.0 | 40.8 | 38.6 |
| 2015–19 | 48.2 | 41.5 | 39.6 |
| 2020–24 | 48.8 | 41.5 | 40.1 |
| Change | +6.7 | +1.6 | +2.3 |
With a median age of 48.8, Eureka is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees.
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 Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 5.1% | 9.4% | 12.3% |
| 2010–14 | 5.3% | 9.8% | 12.3% |
| 2015–19 | 7.0% | 8.7% | 11.6% |
| 2020–24 | 11.2% | 8.8% | 11.6% |
| Change | +6.1 pts | −0.6 pts | −0.6 pts |
Single parents head just over one in ten households in Eureka (11.2%), close to the national share of 11.6%. Single parents are more common here than in Montana overall (8.8%).
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 Eureka
Renters in Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 21.1% | 31.0% | 33.3% |
| 2010–14 | 19.8% | 32.3% | 35.6% |
| 2015–19 | 23.4% | 31.9% | 36.0% |
| 2020–24 | 14.6% | 30.8% | 34.8% |
| Change | −6.6 pts | −0.1 pts | +1.5 pts |
Only 14.6% of households in Eureka rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 57.1% have no mortgage at all, 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 Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 17.3% | 13.2% | 11.4% |
| 2010–14 | 19.4% | 13.9% | 11.4% |
| 2015–19 | 28.1% | 14.1% | 11.1% |
| 2020–24 | 17.2% | 12.2% | 9.6% |
| Change | −0.2 pts | −0.9 pts | −1.8 pts |
Vacancy is high in Eureka: 17.2% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.
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 Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 1970 | 1974 | 1974 |
| 2010–14 | 1978 | 1977 | 1975 |
| 2015–19 | 1987 | 1978 | 1977 |
| 2020–24 | 1988 | 1982 | 1980 |
| Change | +19 | +7 | +6 |
Eureka has newer housing than the country as a whole: the median home was built in 1988, versus 1980 nationally.
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 Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | $609 | $703 | $965 |
| 2010–14 | $760 | $775 | $1,040 |
| 2015–19 | $845 | $870 | $1,213 |
| 2020–24 | $1,015 | $1,189 | $1,571 |
| Change | +$406 | +$487 | +$606 |
A typical rental in Eureka costs $1,015 a month with utilities, well below the national median of $1,571. The typical renter here spends 28.6% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 Eureka
Bachelor's degrees in Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 15.5% | 28.7% | 28.4% |
| 2010–14 | 20.8% | 29.8% | 29.6% |
| 2015–19 | 20.7% | 32.2% | 32.1% |
| 2020–24 | 16.6% | 35.3% | 35.6% |
| Change | +1.1 pts | +6.6 pts | +7.2 pts |
College degrees are relatively uncommon in Eureka: 16.6% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%.
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 Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 85.2% | 91.2% | 84.9% |
| 2010–14 | 90.0% | 92.6% | 86.1% |
| 2015–19 | 86.6% | 93.6% | 87.7% |
| 2020–24 | 89.0% | 94.6% | 89.3% |
| Change | +3.8 pts | +3.4 pts | +4.3 pts |
About as many adults in Eureka have finished high school as nationally: 89.0%, against 89.3%. The rate is lower than in Montana as a whole (94.6%).
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 Eureka
| Period | Eureka | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 8.8% | 5.7% | 8.1% |
| 2010–14 | 16.2% | 6.9% | 9.4% |
| 2015–19 | 15.2% | 4.2% | 5.6% |
| 2020–24 | 3.8% | 3.7% | 5.4% |
| Change | −5.0 pts | −2.0 pts | −2.7 pts |
Jobs have been easier to find in Eureka than nationally: unemployment was 3.8%, against 5.4%. Montana as a whole looks much the same. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current 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).
Eureka compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Eureka | 2.59 | 48.8 | 11.2% | 14.6% | 17.2% | 1988 | $1,015 | 16.6% | 89.0% | 3.8% |
| Rexford | 3.33 | 51.2 | 8.6% | 12.8% | 31.2% | 1996 | $1,003 | 17.9% | 81.9% | 11.5% |
| Roosville | 3.46 | 50.3 | 6.7% | 10.6% | 36.8% | 1996 | $962 | 18.2% | 80.0% | 12.3% |
| Fortine | 2.60 | 46.2 | 11.4% | 18.5% | 18.1% | 1997 | $1,023 | 30.4% | 94.7% | 2.6% |
| Trego | 2.52 | 50.4 | 11.9% | 16.7% | 13.1% | 1996 | $1,028 | 25.8% | 94.9% | 3.9% |
| Stryker | 2.53 | 45.5 | 5.1% | 20.8% | 23.6% | 1989 | $853 | 34.3% | 93.6% | 1.7% |
| Yaak | 2.14 | 65.4 | 3.7% | 12.2% | 45.3% | 1995 | $929 | 24.0% | 96.5% | 2.3% |
| Polebridge | 2.64 | 43.3 | 0.9% | 38.0% | 78.9% | 1989 | $859 | 22.7% | 100.0% | 0.0% |
| Olney | 2.13 | 55.5 | 2.0% | 18.0% | 20.9% | 1985 | $833 | 32.4% | 92.4% | 1.7% |
| Libby | 2.13 | 51.9 | 6.4% | 28.2% | 9.3% | 1974 | $712 | 18.9% | 90.9% | 5.3% |
| Whitefish | 2.17 | 48.4 | 4.7% | 28.0% | 17.9% | 1990 | $1,972 | 51.3% | 97.4% | 2.3% |
All figures 2020–24.
Cities with similar populations: Slaughter, LA · Pound, VA · Clendenin, WV · Jericho, VT · Northwood, NH · Ashland, AL · Jay, ME · Jamestown, KY · Indian Head Park, IL · Howard, PA
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 Eureka. 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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