| Statistic | Derry | New Hampshire | National |
| Population | 22,891 | 1,359,711 | 328,239,523 |
| Population density (sq mi) | 1,429 | 153 | 91 |
| Median age | 38.4 | 42.4 | 37.7 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 53% | 58% | 55% |
| Families w/ Kids under 18 | 47% | 40% | 43% |
| Speak English | 93% | 92% | 79% |
| Speak Spanish | 3% | 2% | 13% |
The demographics of Derry 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 22,891, Derry exhibits a population density of 1,429 people per square mile, contrasting with the national average of 91. The median age stands at 38.4, with 53% of individuals aged 15 or older being married and 47% having children under 18. In terms of income equality in Derry, 17% of households report a median income below $25,000, while 21% report an income exceeding $150,000, showcasing a diverse economic landscape.
Recognizing the racial demographics and ethnicity breakdown of Derry is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In Derry, the racial breakdown comprises 94.4% White, 0.7% Black or African American, 1.4% Asian, 0% American Indian, and 0% Native Hawaiian, with 4.8% of the population identifying as Hispanic or Latino. 93.1% of households reported speaking English only, while 2.8% reported speaking Spanish only. Furthermore, 5.1% of residents were categorized as foreign-born.
Communities such as Derry, with population densities higher than the average, play a significant role in promoting environmental sustainability by decreasing per capita energy consumption, greenhouse gas emissions and land use. Their compact urban development encourages the adoption of energy-efficient buildings, walking, cycling, and public transportation, fostering sustainable lifestyles and minimizing environmental impact. Additionally, densely populated areas tend to cultivate vibrant social and cultural scenes, fueled by a diverse population that contributes to a myriad of cultural events, festivals and community activities. This cultural diversity sparks creativity, innovation and cross-cultural exchange, enriching the social fabric of the community. Derry has a population density of 1,429, surpassing the national average of 91 people per square mile, as it stands poised to reap the benefits of dense urban living.
Social Cohesion: Analyzing demographics is vital for nurturing social cohesion and fostering understanding among diverse communities. By embracing and respecting variations in Derry 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.
Urban Development: Derry demographic statistics are invaluable for urban planners in designing and developing areas that cater to residents' needs, encompassing housing, transportation, and public services, all while fostering sustainability and enhancing quality of life. Shifts in demographics can influence gentrification and neighborhood transformation, whether in urban or rural settings. As neighborhoods attract new residents with varying income levels and lifestyle preferences, property values may increase, potentially displacing long-term residents and altering the neighborhood's character. Analyzing population density, age distribution, household size, and income levels is crucial for guiding decisions regarding zoning, transportation infrastructure, housing expansion and public amenities. Utilizing Derry demographic data in planning and executing affordable housing initiatives can serve as a preventive measure against displacement.
Healthcare Planning: The examination of Derry 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.
| Race | Derry | New Hampshire | National |
| White | 94.44% | 93.68% | 73.35% |
| Black | 0.75% | 1.32% | 12.63% |
| Asian | 1.36% | 2.42% | 5.22% |
| American Indian | 0.02% | 0.16% | 0.82% |
| Native Hawaiian | 0.00% | 0.02% | 0.18% |
| Mixed race | 2.37% | 1.88% | 3.06% |
| Other race | 1.06% | 0.54% | 4.75% |
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