| Statistic | Demarest | New Jersey | National |
| Population | 5,016 | 9,226,043 | 336,919,644 |
| Population density (sq mi) | 2,426 | 1,255 | 91 |
| Median age | 44.2 | 39.5 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 78% | 56% | 55% |
| Families w/ Kids under 18 | 46% | 45% | 43% |
| Speak English | 58% | 69% | 79% |
| Speak Spanish | 4% | 16% | 13% |

The demographics of Demarest 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 5,016, Demarest exhibits a population density of 2,426 people per square mile, contrasting with the national average of 91. The median age stands at 44.2, with 78% of individuals aged 15 or older being married and 46% having children under 18. In terms of income equality in Demarest, 5% of households report a median income below $25,000, while 61% report an income exceeding $150,000, showcasing a diverse economic landscape.
The Demarest racial demographics and ethnicity breakdown could be indispensable tools for recognizing and rectifying systemic inequities, fostering social justice and inclusion and cultivating resilient communities. In Demarest, the racial breakdown reveals 69.3% White, 0% Black or African American, 28.3% Asian, 0% American Indian and 0% Native Hawaiian, with 5.3% of the population identifying as Hispanic or Latino. Of all households, 58.4% reported speaking English only, while 3.8% reported speaking Spanish only. Moreover, 34.4% of residents were classified as foreign-born.
High population density areas typically offer a diverse array of amenities and services within walking distance or a short commute, enriching residents' quality of life and well-being. Accessible healthcare facilities, educational institutions, cultural venues, restaurants, shopping and public transportation options contribute to the convenience and vibrancy of these communities. The population density of of Demarest is 2,426 people per square mile, which far exceeds the national average of 91 and ranks among the most densely populated cities in the nation.
Understanding Populations: By delving into and analyzing the Demarest demographic stats, we can uncover insightful details regarding the composition and attributes of populations, spanning age, gender, race, ethnicity, income, education and other socio-economic indicators. This comprehension is vital for addressing the diverse needs, preferences and hurdles faced by various demographic groups within communities. Demographics wield significant influence in understanding populations, shaping decision-making processes and championing equity, inclusion, and the overall welfare of all individuals and communities. The Demarest population and demographic data serves as a cornerstone for tackling social, economic and environmental challenges, while simultaneously nurturing the well-being and resilience of societies.
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 Demarest 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.
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 Demarest 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. Demarest 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 | Demarest | New Jersey | National |
| White | 69.33% | 68.15% | 73.35% |
| Black | 0.04% | 13.54% | 12.63% |
| Asian | 28.28% | 9.19% | 5.22% |
| American Indian | 0.00% | 0.21% | 0.82% |
| Native Hawaiian | 0.00% | 0.03% | 0.18% |
| Mixed race | 1.32% | 2.53% | 3.06% |
| Other race | 1.02% | 6.35% | 4.75% |