Population 18,802 · Census ACS 2020–24
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Population and households in Eureka
Household size in Eureka
| Period | Eureka | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.89 | 2.52 | 2.49 | 2.68 |
| 2010–14 | 3.01 | 2.53 | 2.52 | 2.73 |
| 2015–19 | 2.81 | 2.49 | 2.50 | 2.71 |
| 2020–24 | 2.80 | 2.46 | 2.49 | 2.65 |
| Change | −0.10 | −0.06 | −0.00 | −0.03 |
Households in Eureka average 2.80 people, a bit above the national 2.65, so families with children are somewhat more common here. Since 2006–10, household size has dropped from 2.89, a much bigger shift than nationally. Only 15 of the 191 Missouri cities with 5,000+ people have larger households.
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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.4 | 38.5 | 38.4 | 37.7 |
| 2010–14 | 40.0 | 39.5 | 39.2 | 38.6 |
| 2015–19 | 42.0 | 40.7 | 40.0 | 39.6 |
| 2020–24 | 39.9 | 40.8 | 40.1 | 40.1 |
| Change | +1.5 | +2.3 | +1.7 | +2.3 |
Half of the people in Eureka are younger than 39.9 and half are older, close to the national median of 40.1. The median age has climbed from 38.4 in 2006–10, as it has nationally. Residents skew youngest in the northwest and oldest in the southeast.
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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.1% | 11.7% | 11.3% | 12.3% |
| 2010–14 | 8.8% | 11.5% | 11.4% | 12.3% |
| 2015–19 | 5.7% | 11.0% | 10.9% | 11.6% |
| 2020–24 | 7.2% | 11.1% | 11.0% | 11.6% |
| Change | −0.9 pts | −0.6 pts | −0.3 pts | −0.6 pts |
Single-parent households are relatively rare in Eureka: 7.2% of households, against 11.6% nationally. The single-parent share has edged down 0.9 points since 2006–10, mirroring the country. Eureka has a lower share of single-parent households than at least four in five Missouri cities.
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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.1% | 28.3% | 30.0% | 33.3% |
| 2010–14 | 12.5% | 30.1% | 32.1% | 35.6% |
| 2015–19 | 15.5% | 31.1% | 33.2% | 36.0% |
| 2020–24 | 16.9% | 29.6% | 31.9% | 34.8% |
| Change | +6.8 pts | +1.4 pts | +1.9 pts | +1.5 pts |
Eureka is largely a place of homeowners: only 16.9% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 20.2% have no mortgage at all, well below the national share of 39.8%. The renter share is up 6.8 points from 2006–10, a much bigger shift than nationally.
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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.7% | 9.6% | 11.6% | 11.4% |
| 2010–14 | 10.8% | 10.1% | 12.0% | 11.4% |
| 2015–19 | 8.7% | 10.1% | 12.2% | 11.1% |
| 2020–24 | 3.8% | 8.8% | 10.5% | 9.6% |
| Change | −0.9 pts | −0.8 pts | −1.1 pts | −1.8 pts |
Only 3.8% of homes in Eureka are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 0.9 points from 2006–10, as it has nationally. Only 16 of the 191 Missouri cities with 5,000+ people have a lower vacancy rate.
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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 1990 | 1972 | 1974 | 1974 |
| 2010–14 | 1992 | 1972 | 1975 | 1975 |
| 2015–19 | 1993 | 1973 | 1976 | 1977 |
| 2020–24 | 1998 | 1975 | 1978 | 1980 |
| Change | +8 | +3 | +4 | +6 |
Much of the housing in Eureka is relatively new: half of its homes were built after 1998, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1990 in 2006–10, a sign of steady new building. The newest homes are mostly in the southwest, the oldest in the southeast. Only 15 of the 191 Missouri cities with 5,000+ people have newer homes.
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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | $703 | $825 | $740 | $965 |
| 2010–14 | $950 | $920 | $816 | $1,040 |
| 2015–19 | $1,080 | $1,010 | $899 | $1,213 |
| 2020–24 | $1,236 | $1,239 | $1,122 | $1,571 |
| Change | +$533 | +$414 | +$383 | +$606 |
The median renter in Eureka pays $1,236 a month for rent and utilities, well below the national median of $1,571. Rents are up $533 a month from 2006–10, a 76% jump, faster than rents rose nationally. The typical renter here spends 26.7% of household income on rent, comfortably 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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 40.6% | 30.3% | 26.0% | 28.4% |
| 2010–14 | 39.7% | 32.1% | 27.3% | 29.6% |
| 2015–19 | 47.7% | 34.9% | 29.6% | 32.1% |
| 2020–24 | 50.4% | 38.5% | 32.6% | 35.6% |
| Change | +9.8 pts | +8.3 pts | +6.6 pts | +7.2 pts |
Eureka is highly educated: about half of adults 25 and older (50.4%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 9.8 points from 2006–10, mirroring the country. College graduates are most concentrated in the southwest and least in the southeast.
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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.6% | 88.8% | 86.8% | 84.9% |
| 2010–14 | 93.8% | 90.5% | 88.3% | 86.1% |
| 2015–19 | 96.1% | 92.1% | 90.0% | 87.7% |
| 2020–24 | 95.9% | 93.6% | 91.8% | 89.3% |
| Change | +3.2 pts | +4.8 pts | +5.1 pts | +4.3 pts |
High school completion is high in Eureka: 95.9% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has risen 3.2 points, in line with the national trend.
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 | St. Louis area | Missouri | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.7% | 7.7% | 7.4% | 8.1% |
| 2010–14 | 6.5% | 8.8% | 8.4% | 9.4% |
| 2015–19 | 3.3% | 4.9% | 4.6% | 5.6% |
| 2020–24 | 3.3% | 4.3% | 4.1% | 5.4% |
| Change | −1.4 pts | −3.4 pts | −3.3 pts | −2.7 pts |
The job market in Eureka has been strong: just 3.3% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment has edged down 1.4 points since 2006–10, in line with the national trend. 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).
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 | 2.80 | 39.9 | 7.2% | 16.9% | 3.8% | 1998 | $1,236 | 50.4% | 95.9% | 3.3% |
| Times Beach | 2.60 | 51.9 | 3.2% | 5.7% | 1.4% | 2004 | $1,314 | 55.7% | 98.8% | 2.3% |
| Parkdale | 2.62 | 43.9 | 9.2% | 17.0% | 6.0% | 1991 | $919 | 27.9% | 95.9% | 0.4% |
| Byrnes Mill | 2.68 | 35.1 | 14.3% | 22.3% | 6.1% | 1992 | $1,135 | 18.9% | 92.6% | 10.4% |
| Pacific | 2.34 | 42.3 | 8.9% | 27.5% | 5.7% | 1987 | $881 | 29.6% | 89.2% | 2.3% |
| Grover | 2.73 | 43.4 | 4.8% | 11.1% | 3.1% | 1993 | $1,595 | 63.4% | 97.7% | 3.0% |
| Lake Tekakwitha | 2.25 | 52.5 | 1.4% | 0.9% | 2.3% | 1988 | $900 | 52.3% | 90.2% | 1.7% |
| High Ridge | 2.58 | 45.2 | 5.7% | 11.4% | 5.5% | 1983 | $1,057 | 27.7% | 93.6% | 2.7% |
| Wildwood | 2.72 | 47.0 | 5.9% | 8.8% | 7.3% | 1991 | $1,716 | 69.7% | 98.0% | 3.1% |
| Ellisville | 2.57 | 45.1 | 6.2% | 21.5% | 4.4% | 1986 | $1,376 | 63.8% | 97.2% | 3.6% |
| Scotsdale | 2.80 | 41.0 | 6.7% | 10.8% | 7.3% | 1990 | $1,436 | 28.0% | 92.8% | 4.7% |
All figures 2020–24.
Cities with similar populations: Aledo, TX · Auburn, MA · Artesia, CA · Arab, AL · Aptos, CA · Woodcrest, CA · Angola, IN · Worthington, OH · Wyandanch, NY · Alexander City, AL
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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