| Statistic | Westbury | New York | National |
| Population | 15,784 | 20,171,207 | 336,919,644 |
| Population density (sq mi) | 6,735 | 428 | 91 |
| Median age | 43.0 | 38.2 | 37.7 |
| Male/Female ratio | 0.9:1 | 0.9:1 | 1.0:1 |
| Married (15yrs & older) | 60% | 52% | 55% |
| Families w/ Kids under 18 | 33% | 43% | 43% |
| Speak English | 55% | 70% | 79% |
| Speak Spanish | 26% | 15% | 13% |

The population in Westbury is 15,784, while the population density is 6,735 people per square mile, contrasting with the national average of 91. The median age stands at 43, with 60% of individuals aged 15 or older being married and 33% having children under 18. In terms of household income equality in Westbury, 14% of households report a median income below $25,000, while 43% report an income exceeding $150,000. The Westbury demographics data can provide invaluable insight into the composition, dynamics and needs of urban and rural areas, enabling planners, developers and policymakers to strategize effectively for the promotion of prosperity, equity and well-being for all residents in the area.
Understanding the Westbury racial demographics and ethnic composition is paramount for addressing systemic inequities, advancing social justice and inclusion and fortifying communities. In Westbury, the racial breakdown indicates 45.6% White, 22.3% Black or African American, 10% Asian, 0% American Indian and 0% Native Hawaiian, with 29.9% of the population identifying as Hispanic or Latino. Notably, 55% of households reported speaking English only, while 26.1% reported speaking Spanish only. Additionally, 37.2% of residents were categorized as foreign-born.
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 Westbury population density is 6,735 people per square mile, well above the national average of 91, making it one of the most densely populated cities in the nation.
Education Allocation: Westbury 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, Westbury 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: Urban planners can leverage demographics data in Westbury 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 Westbury demographics data into planning and implementing affordable housing initiatives can help mitigate displacement risks.
Healthcare Planning: An analysis of Westbury demographics can inform healthcare planning and delivery by identifying population health needs, disparities and risk factors. Understanding demographic trends allows healthcare providers and policymakers to allocate resources effectively, develop prevention and intervention programs and address health inequities within communities. Leveraging demographic data, healthcare providers, and policymakers strive 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 customized healthcare services to meet the diverse needs of populations.
| Race | Westbury | New York | National |
| White | 45.60% | 64.31% | 73.35% |
| Black | 22.25% | 15.60% | 12.63% |
| Asian | 10.03% | 8.12% | 5.22% |
| American Indian | 0.00% | 0.38% | 0.82% |
| Native Hawaiian | 0.00% | 0.04% | 0.18% |
| Mixed race | 6.99% | 2.93% | 3.06% |
| Other race | 15.13% | 8.62% | 4.75% |