| Statistic | Sussex | New Jersey | National |
| Population | 1,894 | 9,226,043 | 336,919,644 |
| Population density (sq mi) | 3,194 | 1,255 | 91 |
| Median age | 42.6 | 39.5 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 54% | 56% | 55% |
| Families w/ Kids under 18 | 39% | 45% | 43% |
| Speak English | 95% | 69% | 79% |
| Speak Spanish | 3% | 16% | 13% |

The demographics of Sussex 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 1,894, Sussex exhibits a population density of 3,194 people per square mile, contrasting with the national average of 91. The median age stands at 42.6, with 54% of individuals aged 15 or older being married and 39% having children under 18. In terms of income equality in Sussex, 11% of households report a median income below $25,000, while 15% report an income exceeding $150,000, showcasing a diverse economic landscape.
Recognizing the racial demographics and ethnicity breakdown of Sussex is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In Sussex, the racial breakdown comprises 92.5% White, 2.6% Black or African American, 1.3% Asian, 0% American Indian, and 0% Native Hawaiian, with 3.2% of the population identifying as Hispanic or Latino. 95.2% of households reported speaking English only, while 3.4% reported speaking Spanish only. Furthermore, 3.2% of residents were categorized as foreign-born.
The Sussex population density comes in at 3,194 people per square mile, which makes it one of the most densely populated areas in the country, far surpassing the national average of 91. Areas characterized by high population density often boast an abundance of amenities and services within close proximity, providing residents with convenient access to healthcare, education, cultural attractions, dining establishments, retail outlets and transportation options. This accessibility could potentially enhance residents' overall quality of life and well-being.
Healthcare Planning: Analyzing the demographic data in Sussex has the potential to inform healthcare planning and delivery by identifying population health needs, disparities and risk factors. Healthcare providers and policymakers can allocate resources more effectively, develop prevention and intervention programs and address health inequities within communities by understanding demographic trends. Leveraging demographic statistics can enable healthcare providers and policymakers to strive for 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 diverse population needs.
Understanding Populations: By delving into and analyzing the Sussex 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 Sussex 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: Analyzing demographics is vital for nurturing social cohesion and fostering understanding among diverse communities. By embracing and respecting variations in Sussex demographics, societies can advance inclusivity, diversity and social unity while combatting social inequalities and advocating for equal opportunities. Racial demographics mirror the diversity within a population and can be instrumental in cultivating inclusive and inviting communities. Embracing diversity strengthens social bonds, fosters cultural appreciation and enriches society by acknowledging the contributions of individuals from various racial and ethnic backgrounds.
| Race | Sussex | New Jersey | National |
| White | 92.48% | 68.15% | 73.35% |
| Black | 2.61% | 13.54% | 12.63% |
| Asian | 1.31% | 9.19% | 5.22% |
| American Indian | 0.00% | 0.21% | 0.82% |
| Native Hawaiian | 0.00% | 0.03% | 0.18% |
| Mixed race | 3.38% | 2.53% | 3.06% |
| Other race | 0.22% | 6.35% | 4.75% |