Statistic Eureka Missouri National
Population 10,586 6,326,040 336,919,644
Population density (sq mi) 992 92 91
Median age 39.8 38.3 37.7
Male/Female ratio 1.1:1 1.0:1 1.0:1
Married (15yrs & older) 67% 57% 55%
Families w/ Kids under 18 55% 42% 43%
Speak English 96% 94% 79%
Speak Spanish 1% 3% 13%
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Overview of Eureka Demographics

Eureka demographics provide invaluable insights into the composition, dynamics and needs of urban and rural areas, enabling them to plan, develop, and govern in ways that promote prosperity, equity and well-being for all residents. The Eureka population is 10,586 and has a population density of 992 people per square mile, compared to the national average of 91. The median age of all residents is 39.8, 67% of people 15 years of age or older are married and 55% have kids under the age of 18. In Eureka, 4% of households have a median income that is below $25,000 and 43% of households report a median income above $150,000.

Eureka Racial Demographics & Ethnicity

The 5 largest ethnic groups in Eureka are 93.1% White, 0.3% Black or African American, 1.7% Asian, 0% American Indian and 0% Native Hawaiian, with 2.1% of the population identifying as Hispanic or Latino. Of note, 96.3% of households reported speaking English only, while 1.4% reported speaking Spanish only. Additionally, 2.4% of residents were classified as foreign-born. The Eureka racial demographics and ethnicity breakdown are essential for comprehending and addressing systemic inequities, advancing social justice and inclusion and cultivating resilient communities.

Eureka Population Density

Eureka could serve as a prime example of how areas with higher-than-average population density can champion environmental sustainability by reducing per capita energy consumption, greenhouse gas emissions and land use. Embracing compact urban development, these densely populated areas promote energy-efficient buildings and encourages walking, cycling and public transit use, fostering sustainable lifestyles and minimizing environmental impact. Moreover, densely populated regions are renowned for their vibrant social and cultural scenes, driven by a diverse population that organizes an array of cultural events, festivals and community activities. This cultural diversity ignites creativity, innovation and cross-cultural exchange, enriching the social fabric of the community. The Eureka population density is 992, surpassing the national average of 91 per square miles, positioning itself to capitalize on the advantages of dense urban living.

Is Eureka Family Friendly?

Eureka, as a family-friendly city, places a significant emphasis on the well-being and needs of families, fostering an environment where children thrive, parents feel supported and families can collectively enjoy a high quality of life. These cities are characterized by their strong sense of community, with neighbors actively supporting and looking out for one another. Additionally, they often offer exceptional educational opportunities, including top-quality schools, well-stocked libraries and diverse extracurricular activities. Access to quality education is essential for children's development and future success. By prioritizing the well-being of its residents, such cities become vibrant and resilient communities where families can truly flourish. In Eureka, 55% of families have children under the age of 18, and 67% of residents aged over 15 are married. These demographics position this area to reap the benefits of being a family-friendly locality.

Why are Demographics Important?

Understanding Populations: The examination and analysis of Eureka demographic data can offer valuable insights into the composition and traits of populations, including age, gender, race, ethnicity, income, education and various socio-economic factors. This understanding is essential for addressing the varied needs, preferences, and challenges faced by different demographic groups within communities. Demographics hold significant importance in understanding populations, guiding decision-making processes and promoting equity, inclusion, and overall well-being for all individuals and communities. The Eureka population data serves as a cornerstone for addressing social, economic and environmental challenges, while also fostering the well-being and resilience of societies.

Education Allocation: Eureka demographics can play a pivotal role in guiding education planning, offering insights into student demographics, school enrollment patterns, and educational requirements. This data aids schools and policymakers in resource allocation and the development of effective educational programs. It serves as a critical tool for identifying disparities in educational access and outcomes among diverse demographic groups, such as racial and ethnic minorities, socio-economic status, and students with disabilities. Through the disaggregation of data by demographic factors, education planners can pinpoint areas of inequity and implement targeted interventions to enhance access, support, and outcomes for marginalized students. Ultimately, Eureka demographic data is indispensable in education for advancing equity, fostering student achievement, and cultivating inclusive learning environments tailored to the needs of all students.

Urban Development: Utilizing Eureka demographic statistics and data, urban planners can craft and develop areas that cater to local residents, encompassing housing, transportation and public services, all while emphasizing sustainability and enriching quality of life. Demographic transitions can contribute to gentrification and neighborhood evolution, whether in urban or rural environments. As neighborhoods draw in new residents with varying income levels and lifestyle preferences, property values may appreciate, potentially displacing longtime inhabitants and reshaping the neighborhood's fabric. Comprehensive insights into population density, age distribution, household size, and income levels are instrumental in guiding decisions regarding zoning, transportation infrastructure, housing expansion and public amenities. Harnessing Eureka demographic stats for planning and executing affordable housing initiatives can serve as a preventive measure against displacement.

Demographics Quick Facts

  • The population density in Eureka is 977% higher than Missouri
  • The median age in Eureka is 4% higher than Missouri
  • In Eureka 93.14% of the population is White
  • In Eureka 0.34% of the population is Black
  • In Eureka 1.72% of the population is Asian

Compare Eureka, MO Demographics

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      Eureka racial demographics

      Race Eureka Missouri National
      White 93.14% 82.53% 73.35%
      Black 0.34% 11.58% 12.63%
      Asian 1.72% 1.78% 5.22%
      American Indian 0.01% 0.42% 0.82%
      Native Hawaiian 0.00% 0.11% 0.18%
      Mixed race 4.78% 2.44% 3.06%
      Other race 0.00% 1.13% 4.75%
      In Eureka, 2.1% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      Eureka age breakdown

      Marital status

      Age of children in married couples

      Source: The Eureka, MO demographics data displayed above is derived from the United States Census Bureau American Community Survey (ACS) and include 2026 modeled data developed using proprietary methodologies.