| Statistic | Fairfax | Virginia | National |
| Population | 23,312 | 8,535,519 | 328,239,523 |
| Population density (sq mi) | 3,736 | 218 | 91 |
| Median age | 38.0 | 37.8 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 60% | 57% | 55% |
| Families w/ Kids under 18 | 44% | 44% | 43% |
| Speak English | 67% | 84% | 79% |
| Speak Spanish | 13% | 7% | 13% |
Fairfax 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 Fairfax population is 23,312 and has a population density of 3,736 people per square mile, compared to the national average of 91. The median age of all residents is 38, 60% of people 15 years of age or older are married and 44% have kids under the age of 18. In Fairfax, 16% of households have a median income that is below $25,000 and 44% of households report a median income above $150,000.
The 5 largest ethnic groups in Fairfax are 65% White, 5.1% Black or African American, 18.5% Asian, 0.1% American Indian and 0% Native Hawaiian, with 17.3% of the population identifying as Hispanic or Latino. Of note, 66.7% of households reported speaking English only, while 13.4% reported speaking Spanish only. Additionally, 29.5% of residents were classified as foreign-born. The Fairfax racial demographics and ethnicity breakdown are essential for comprehending and addressing systemic inequities, advancing social justice and inclusion and cultivating resilient communities.
High population density areas are renowned for their extensive array of amenities and services, easily accessible to residents within walking distance or a short commute. From healthcare facilities and educational institutions to cultural venues, dining establishments, retail shops and public transportation options, these communities offer convenience and enrichment to their inhabitants. The Fairfax population density is 3,736 people per square mile, well above the national average of 91, making it one of the most densely populated cities in the nation.
Urban Development: Urban planners can leverage demographics data in Fairfax to design and develop areas that cater to residents' needs, spanning housing, transportation, and public services, while prioritizing sustainability and enhancing quality of life. Demographic changes can contribute to gentrification and neighborhood evolution, whether in urban or rural contexts. As neighborhoods attract new residents with diverse income levels and lifestyle preferences, property values may appreciate, potentially displacing longstanding residents and reshaping the neighborhood's identity. Understanding population density, age distribution, household size and income levels is essential for guiding decisions on zoning, transportation infrastructure, housing development and public amenities. Incorporating Fairfax demographics data into planning and implementing affordable housing initiatives can help mitigate displacement risks.
Healthcare Planning: The examination of Fairfax demographics can potentially inform healthcare planning and delivery by identifying population health needs, disparities and risk factors. By comprehending demographic trends, healthcare providers and policymakers can allocate resources effectively, develop prevention and intervention programs, and address health inequities within communities. Through the utilization of demographic statistics, healthcare providers and policymakers aim to achieve equitable, accessible, and high-quality healthcare for all individuals and communities. This proactive healthcare planning approach ensures targeted interventions, efficient resource allocation and tailored healthcare services to meet the diverse needs of populations.
Policy Planning: Demographic data and statistics serve as valuable tools for guiding policy and decision-making processes across government entities, organizations, and businesses. Through the analysis and interpretation of Fairfax demographics, policymakers, government officials and organizational leaders can identify areas requiring attention, allocate resources strategically and develop policies and initiatives that cater to the unique needs and preferences of various demographic groups. Fairfax demographic statistics can play a critical role in policy planning by informing resource allocation, enabling evidence-based decision-making, identifying priority areas, forecasting future trends, monitoring policy outcomes and fostering equity and inclusivity. By harnessing this data effectively, policymakers can craft policies that are targeted, efficient and equitable, thereby addressing the diverse needs of communities.
| Race | Fairfax | Virginia | National |
| White | 64.95% | 68.75% | 73.35% |
| Black | 5.14% | 19.21% | 12.63% |
| Asian | 18.50% | 6.05% | 5.22% |
| American Indian | 0.09% | 0.26% | 0.82% |
| Native Hawaiian | 0.00% | 0.07% | 0.18% |
| Mixed race | 6.26% | 3.37% | 3.06% |
| Other race | 5.07% | 2.30% | 4.75% |
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