| Statistic | Quincy | Washington | National |
| Population | 7,998 | 7,794,858 | 336,919,644 |
| Population density (sq mi) | 1,355 | 117 | 91 |
| Median age | 23.6 | 37.6 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 60% | 56% | 55% |
| Families w/ Kids under 18 | 68% | 44% | 43% |
| Speak English | 26% | 81% | 79% |
| Speak Spanish | 74% | 8% | 13% |

Quincy demographics provide invaluable insights into the composition, dynamics and needs of urban and rural areas, enabling them to plan, develop, and govern in ways that promote prosperity, equity and well-being for all residents. The Quincy population is 7,998 and has a population density of 1,355 people per square mile, compared to the national average of 91. The median age of all residents is 23.6, 60% of people 15 years of age or older are married and 68% have kids under the age of 18. In Quincy, 16% of households have a median income that is below $25,000 and 15% of households report a median income above $150,000.
Recognizing the racial demographics and ethnicity breakdown of Quincy is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In Quincy, the racial breakdown comprises 40.9% White, 0% Black or African American, 0.1% Asian, 0% American Indian, and 0% Native Hawaiian, with 79.3% of the population identifying as Hispanic or Latino. 26.2% of households reported speaking English only, while 73.8% reported speaking Spanish only. Furthermore, 31.8% of residents were categorized as foreign-born.
Quincy has a population density that is well above-average, which plays a pivotal role in promoting environmental sustainability by reducing per capita energy consumption, greenhouse gas emissions and land use. Its compact urban development encourages energy-efficient buildings, active transportation modes like walking and cycling and the utilization of public transit, fostering sustainable lifestyles and mitigating environmental impact. Additionally, the area's dense population contributes to a vibrant social and cultural scene, featuring a diverse array of cultural events, festivals and community activities. This cultural diversity fuels creativity, innovation and cross-cultural exchange, enhancing the community's social fabric. Quincy has a population density of 1,355 people per square mile, exceeding the national average of 91 and positions itself in a good spot to reap the benefits of densely populated areas.
A family-friendly city like Quincy can prioritize the well-being and needs of families, creating an environment where children thrive, parents feel supported and families can enjoy a high quality of life together. Family-friendly cities are also known to foster a strong sense of community, with neighbors supporting and looking out for one another. These areas could also boast excellent educational opportunities, including high-quality schools, libraries and extracurricular activities. Access to quality education is essential for children's development and future success. By prioritizing the well-being of its residents, such cities become vibrant and resilient communities where families can truly flourish. In Quincy, 68% of families have kids under the age of 18 and 60% of residents over 15 years old are married. These demographics put this area in a position to reap the benefits of a family-friendly area.
Understanding Populations: By delving into and analyzing the Quincy 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 Quincy 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.
Urban Development: Urban planners could use Quincy demographic data to design and create areas that accommodate the needs of residents, including housing, transportation and public services, while promoting sustainability and quality of life. Demographic shifts can contribute to gentrification and neighborhood change in urban or rural areas. As neighborhoods attract new residents with different income levels and lifestyle preferences, property values may rise, leading to displacement of long-time residents and changes in the character and identity of the neighborhood. Understanding population density, age distribution, household size and income levels helps inform decisions related to zoning, transportation infrastructure, housing development and public amenities. Lastly, using Quincy demographics for planning and development of affordable housing can help prevent displacement.
Healthcare Planning: An analysis of Quincy 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 | Quincy | Washington | National |
| White | 40.88% | 77.34% | 73.35% |
| Black | 0.00% | 3.63% | 12.63% |
| Asian | 0.09% | 7.80% | 5.22% |
| American Indian | 0.00% | 1.33% | 0.82% |
| Native Hawaiian | 0.00% | 0.63% | 0.18% |
| Mixed race | 4.56% | 5.34% | 3.06% |
| Other race | 54.47% | 3.92% | 4.75% |