| Statistic | Affton | Missouri | National |
| Population | 19,580 | 6,137,428 | 328,239,523 |
| Population density (sq mi) | 4,284 | 90 | 91 |
| Median age | 42.8 | 38.3 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 56% | 57% | 55% |
| Families w/ Kids under 18 | 36% | 42% | 43% |
| Speak English | 83% | 94% | 79% |
| Speak Spanish | 3% | 3% | 13% |
Affton 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 Affton population is 19,580 and has a population density of 4,284 people per square mile, compared to the national average of 91. The median age of all residents is 42.8, 56% of people 15 years of age or older are married and 36% have kids under the age of 18. In Affton, 18% of households have a median income that is below $25,000 and 15% of households report a median income above $150,000.
Understanding the Affton racial demographics and ethnic composition is paramount for addressing systemic inequities, advancing social justice and inclusion and fortifying communities. In Affton, the racial breakdown indicates 89.6% White, 3.3% Black or African American, 3.2% Asian, 0.1% American Indian and 0% Native Hawaiian, with 3.5% of the population identifying as Hispanic or Latino. Notably, 82.6% of households reported speaking English only, while 3% reported speaking Spanish only. Additionally, 13% of residents were categorized as foreign-born.
Areas with a high population density tend to support a wide range of amenities and services within walking distance or a short commute. Residents tend to have convenient access to healthcare facilities, educational institutions, cultural venues, restaurants, shops and public transportation options, enhancing their quality of life and overall well-being. The Affton population density is 4,284 people per square mile, which is well-above the national average of 91 and is considered one of the most densely populated cities in the country.
Social Cohesion: Reporting and analyzing demographics can play a crucial role in fostering social cohesion and understanding among diverse communities. By recognizing and appreciating differences in Affton demographics, societies can promote inclusivity, diversity and social harmony, while addressing social disparities and promoting equal opportunities for all individuals. Racial demographics reflect the diversity of a population and contribute to fostering inclusive and welcoming communities. Embracing diversity strengthens social cohesion, promotes cultural understanding and enriches the fabric of society by celebrating the contributions of individuals from different racial and ethnic backgrounds.
Understanding Populations: Analyzing and interpreting the Affton demographic data provides us with valuable insights into the characteristics and composition of populations, encompassing age, gender, race, ethnicity, income, education and other socio-economic variables. This understanding is crucial for addressing the diverse needs, preferences and challenges encountered by various demographic groups within communities. Demographics play a crucial role in understanding populations, informing decision-making processes, and advancing equity, inclusion, and overall well-being for all individuals and communities. The Affton population and demographic data serves as a foundation for addressing social, economic and environmental challenges, while also nurturing the well-being and resilience of societies.
Urban Development: By leveraging demographic data in Affton, urban planners can tailor areas to meet the needs of any resident across housing, transportation and public services, all while fostering sustainability and elevating quality of life. Demographic changes can fuel gentrification and neighborhood transformation, whether in urban or rural settings. As neighborhoods attract newcomers with varying income levels and lifestyle preferences, property values may appreciate, potentially displacing established residents and reshaping the neighborhood's fabric. A nuanced understanding of population density, age distribution, household size and income levels is pivotal for guiding decisions on zoning, transportation infrastructure, housing development and public amenities. Utilizing the demographic data in planning and implementing affordable housing initiatives can help mitigate displacement risks and promote inclusive communities.
| Race | Affton | Missouri | National |
| White | 89.62% | 82.53% | 73.35% |
| Black | 3.29% | 11.58% | 12.63% |
| Asian | 3.21% | 1.78% | 5.22% |
| American Indian | 0.09% | 0.42% | 0.82% |
| Native Hawaiian | 0.00% | 0.11% | 0.18% |
| Mixed race | 2.68% | 2.44% | 3.06% |
| Other race | 1.12% | 1.13% | 4.75% |
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