| Statistic | Sullivan | Illinois | National |
| Population | 4,563 | 13,081,969 | 336,919,644 |
| Population density (sq mi) | 1,663 | 236 | 91 |
| Median age | 37.5 | 37.4 | 37.7 |
| Male/Female ratio | 0.8:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 62% | 55% | 55% |
| Families w/ Kids under 18 | 43% | 44% | 43% |
| Speak English | 98% | 77% | 79% |
| Speak Spanish | 1% | 13% | 13% |
The demographics of Sullivan 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 4,563, Sullivan exhibits a population density of 1,663 people per square mile, contrasting with the national average of 91. The median age stands at 37.5, with 62% of individuals aged 15 or older being married and 43% having children under 18. In terms of income equality in Sullivan, 27% of households report a median income below $25,000, while 8% report an income exceeding $150,000, showcasing a diverse economic landscape.
The Sullivan racial demographics and ethnicity breakdown serves as a critical tool for understanding and addressing systemic inequities, promoting social justice and inclusion and building stronger, more resilient communities. The racial breakdown in Sullivan is 96.3% White, 1.4% Black or African American, 0.3% Asian, 0% American Indian and 0% Native Hawaiian - 1.4% of the population identify as Hispanic or Latino. Of all households, 97.8% reported speaking English only, while 0.9% reported speaking Spanish only. A total of 1.5% of residents were considered foreign born.
Sullivan could serve as a prime example of how areas with higher-than-average population density can champion environmental sustainability by reducing per capita energy consumption, greenhouse gas emissions and land use. Embracing compact urban development, these densely populated areas promote energy-efficient buildings and encourages walking, cycling and public transit use, fostering sustainable lifestyles and minimizing environmental impact. Moreover, densely populated regions are renowned for their vibrant social and cultural scenes, driven by a diverse population that organizes an array of cultural events, festivals and community activities. This cultural diversity ignites creativity, innovation and cross-cultural exchange, enriching the social fabric of the community. The Sullivan population density is 1,663, surpassing the national average of 91 per square miles, positioning itself to capitalize on the advantages of dense urban living.
Urban Development: Urban planners can leverage demographics data in Sullivan to design and develop areas that cater to residents' needs, spanning housing, transportation, and public services, while prioritizing sustainability and enhancing quality of life. Demographic changes can contribute to gentrification and neighborhood evolution, whether in urban or rural contexts. As neighborhoods attract new residents with diverse income levels and lifestyle preferences, property values may appreciate, potentially displacing longstanding residents and reshaping the neighborhood's identity. Understanding population density, age distribution, household size and income levels is essential for guiding decisions on zoning, transportation infrastructure, housing development and public amenities. Incorporating Sullivan demographics data into planning and implementing affordable housing initiatives can help mitigate displacement risks.
Policy Planning: Demographic data and statistics play a fundamental role in informing policy and decision-making processes across government entities, organizations and businesses. Through the analysis and interpretation of Sullivan demographic data, policymakers, government officials, and organizational leaders can pinpoint areas of concern, allocate resources efficiently, and devise policies and initiatives tailored to the specific needs and preferences of distinct demographic groups. The utilization of demographics in Sullivan can be crucial in policy planning, facilitating evidence-based decision-making, identifying key priorities, forecasting future trends, monitoring policy outcomes and advancing principles of equity and inclusion. By harnessing this data effectively, policymakers can develop policies that are targeted, effective and inclusive, thus meeting the diverse needs of communities.
Healthcare Planning: Analyzing the demographic data in Sullivan 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.
| Race | Sullivan | Illinois | National |
| White | 96.27% | 72.14% | 73.35% |
| Black | 1.44% | 14.30% | 12.63% |
| Asian | 0.34% | 5.10% | 5.22% |
| American Indian | 0.00% | 0.23% | 0.82% |
| Native Hawaiian | 0.00% | 0.03% | 0.18% |
| Mixed race | 1.35% | 2.34% | 3.06% |
| Other race | 0.61% | 5.86% | 4.75% |
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