Eureka, Missouri

City of Allenton

The railroad town of Allenton is a former community on U.S. Route 66 located (now) at the junction of Interstate 44 and Business Loop 44 in western St. Louis County. In 1985, it was annexed by the city of Eureka. The town is currently rural, with adjacent farmland and forested Ozark ridges. This community was declared blighted by St. Louis County in 1973.

Floods

The city of Eureka has suffered multiple floods, the two most catastrophic being in 2015 and 2017.^[10] This caused the city and U.S. Army Corps of Engineers to evaluate a dozen strategic options, from the use of levees and walls, buyouts of high-risk properties, and the restoration of flood plain as water storage.^[11][12] Scientific researchers determined the flooding was a man-made calamity caused in part by "inaccurate Federal Emergency Management Agency flood frequencies based on the assumption that today's river will behave as it has in the past greatly underestimating our real flood risk and leading to inappropriate development in floodways and floodplains."^[13][14]

2020 census

The 2020 United States census^[24] counted 11,646 people, 3,486 households, and 2,575 families in Eureka. The population density was 1,053.9 per square mile (406.9/km²). There were 3,740 housing units at an average density of 338.5 per square mile (130.7/km²). The racial makeup was 90.73% (10,566) white, 0.82% (96) black or African-American, 0.12% (14) Native American, 1.57% (183) Asian, 0.05% (6) Pacific Islander, 0.76% (89) from other races, and 5.94% (692) from two or more races. Hispanic or Latino of any race was 2.1% (211) of the population.

Of the 3,486 households, 40.5% had children under the age of 18; 64.5% were married couples living together; 16.1% had a female householder with no husband present. Of all households, 20.1% consisted of individuals, and 11.4% had someone living alone who was 65 years of age or older. The average household size was 2.8, and the average family size was 3.4.

26.4% of the population was under the age of 18, 3.9% from 18 to 24, 20.4% from 25 to 44, 24.1% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 39.8 years. For every 100 females, the population had 109.5 males. For every 100 females ages 18 and older, there were 98.5 males.

The 2016-2020 5-year American Community Survey^[25] estimates show that the median household income was $112,750 (with a margin of error of +/- $13,390) and the median family income was $121,977 (+/- $8,559). Males had a median income of $74,452 (+/- $8,634) versus $47,137 (+/- $8,637) for females. The median income for those above 16 years old was $59,316 (+/- $9,813). Approximately, 0.0% of families and 0.6% of the population were below the poverty line, including 0.0% of those under the age of 18 and 0.8% of those ages 65 or over.

2010 census

As of the 2010 census,^[26] there were 10,189 people, 3,474 households, and 2,758 families residing in the city. The population density was 984.4 inhabitants per square mile (380.1/km²). There were 3,683 housing units at an average density of 355.8 per square mile (137.4/km²). The racial makeup of the city was 94.9% White, 0.8% African American, 0.2% Native American, 1.9% Asian, 0.1% Pacific Islander, 0.3% from other races, and 1.7% from two or more races. Hispanic or Latino of any race were 2.0% of the population.

There were 3,474 households, of which 46.9% had children under the age of 18 living with them, 66.2% were married couples living together, 9.3% had a female householder with no husband present, 3.9% had a male householder with no wife present, and 20.6% were non-families. 17.2% of all households were made up of individuals, and 5.9% had someone living alone who was 65 years of age or older. The average household size was 2.87, and the average family size was 3.27.

The median age in the city was 37.1 years. 30.9% of residents were under the age of 18; 6% were between the ages of 18 and 24; 26.6% were from 25 to 44; 26.7% were from 45 to 64, and 9.6% were 65 years of age or older. The gender makeup of the city was 49.6% male and 50.4% female.

2000 census

As of the 2000 census,^[4] there were 7,676 people in the city, organized into 2,487 households and two families. Its population density was 763.7 inhabitants per square mile (294.9/km²). There were 2,622 housing units at an average density of 260.9 per square mile (100.7/km²). The racial makeup of the city was 97.38% White, 0.82% Asian, 0.57% Black or African American, 0.20% Native American, no Pacific Islanders, 0.26% from other races, and 0.77% from two or more races. 1.22% of the population were Hispanic or Latino of any race.

There were 2,487 households, out of which half had children under the age of 18 living with them, 71.6% were married couples living together, 8.2% had a female householder with no husband present, and 17.0% were non-families. 13.8% of all households were made up of individuals, and 4.3% had someone living alone who was 65 years of age or older. The average household size was 2.98, and the average family size was 3.30.

In the city, the population was spread out, with 31.9% under the age of 18, 5.7% from 18 to 24, 34.4% from 25 to 44, 19.5% from 45 to 64, and 8.5% 65 years of age or older. The median age was 34 years. For every 100 females, there were 94.9 males. For every 100 females age 18 and over, there were 89.6 males.

The median income for a household in the city was $74,301, and the median income for a family was $80,625. Males had a median income of $51,799 compared to $33,269 for females. The per capita income for the city was $27,553. 2.2% of the population and 1.3% of families were below the poverty line. Out of the total population, 3.1% of those under the age of 18 and 5.9% of those 65 and older were living below the poverty line.