| Statistic | Lindenhurst | New York | National |
| Population | 27,681 | 20,171,207 | 336,919,644 |
| Population density (sq mi) | 7,378 | 428 | 91 |
| Median age | 41.4 | 38.2 | 37.7 |
| Male/Female ratio | 1.0:1 | 0.9:1 | 1.0:1 |
| Married (15yrs & older) | 59% | 52% | 55% |
| Families w/ Kids under 18 | 40% | 43% | 43% |
| Speak English | 77% | 70% | 79% |
| Speak Spanish | 11% | 15% | 13% |

The demographics of Lindenhurst offer invaluable insights into the composition, dynamics and needs of both urban and rural areas, empowering planners, developers and policymakers to foster prosperity, equity, and well-being for all residents. With a population of 27,681, Lindenhurst exhibits a population density of 7,378 people per square mile, contrasting with the national average of 91. The median age stands at 41.4, with 59% of individuals aged 15 or older being married and 40% having children under 18. In terms of income equality in Lindenhurst, 10% of households report a median income below $25,000, while 38% report an income exceeding $150,000, showcasing a diverse economic landscape.
The 5 largest ethnic groups in Lindenhurst are 82.9% White, 3.8% Black or African American, 1.5% Asian, 0.1% American Indian and 0% Native Hawaiian, with 17.6% of the population identifying as Hispanic or Latino. Of note, 77.1% of households reported speaking English only, while 11.4% reported speaking Spanish only. Additionally, 14.3% of residents were classified as foreign-born. The Lindenhurst racial demographics and ethnicity breakdown are essential for comprehending and addressing systemic inequities, advancing social justice and inclusion and cultivating resilient communities.
In areas with high population density, residents enjoy a wealth of amenities and services conveniently located within walking distance or a short commute. Access to healthcare facilities, educational institutions, cultural venues, dining options, retail stores and public transit enhances residents' quality of life and overall well-being. Lindenhurst has a population density of 7,378 people per square mile, which far exceeds the national average of 91 and ranks among the most densely populated cities in the country.
Understanding Populations: Analyzing and interpreting the Lindenhurst 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 Lindenhurst 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 Lindenhurst, 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.
Social Cohesion: The analysis and understanding of demographics are essential for promoting social cohesion and fostering appreciation among diverse communities. By embracing and acknowledging differences in Lindenhurst demographics, societies can promote inclusivity, diversity and social harmony while addressing social inequalities and advocating for equal opportunities. Racial demographics can reflect the diversity within a population and are instrumental in fostering inclusive and welcoming communities. Embracing ethnic diversity strengthens social connections, promotes cultural understanding and enriches society by celebrating the contributions of individuals from diverse racial and ethnic backgrounds.
| Race | Lindenhurst | New York | National |
| White | 82.85% | 64.31% | 73.35% |
| Black | 3.77% | 15.60% | 12.63% |
| Asian | 1.50% | 8.12% | 5.22% |
| American Indian | 0.10% | 0.38% | 0.82% |
| Native Hawaiian | 0.00% | 0.04% | 0.18% |
| Mixed race | 5.37% | 2.93% | 3.06% |
| Other race | 6.42% | 8.62% | 4.75% |