| Statistic | Decatur | Indiana | National |
| Population | 9,700 | 6,732,219 | 328,239,523 |
| Population density (sq mi) | 1,590 | 188 | 91 |
| Median age | 41.4 | 37.4 | 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% | 43% | 43% |
| Speak English | 97% | 92% | 79% |
| Speak Spanish | 2% | 5% | 13% |
Understanding the demographics of Decatur is essential for gaining insights into the composition, dynamics and needs of any city, town or village. This knowledge empowers planners, developers and policymakers to strategize effectively, promoting prosperity, equity and well-being for all residents. The Decatur population is 9,700, with a population density of 1,590 people per square mile, diverging from the national average of 91. The median age is 41.4, and 54% of individuals aged 15 or older are married, while 39% have children under 18. As far as income equality in Decatur, 24% of households have a median income below $25,000, whereas 4% report an income exceeding $150,000, indicating a varied economic landscape within the area.
The Decatur 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 Decatur, the racial breakdown reveals 93.2% White, 0.9% Black or African American, 0% Asian, 0.2% American Indian and 0% Native Hawaiian, with 7.5% of the population identifying as Hispanic or Latino. Of all households, 97.4% reported speaking English only, while 2% reported speaking Spanish only. Moreover, 0.2% of residents were classified as foreign-born.
Communities such as Decatur, 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. Decatur has a population density of 1,590, surpassing the national average of 91 people per square mile, as it stands poised to reap the benefits of dense urban living.
Urban Development: Decatur 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 Decatur demographic data in planning and executing affordable housing initiatives can serve as a preventive measure against displacement.
Policy Planning: Demographic data and statistics can inform policy and decision-making processes at various levels of government, as well as in organizations and businesses. By reporting and analyzing Decatur demographics data, policymakers, government officials and organizational leaders can identify areas of need, allocate resources effectively and develop targeted policies and programs that address the specific needs and priorities of different demographic groups. Decatur demographics can play a crucial role in policy planning by informing resource allocation, evidence-based decision making, identifying priorities, forecasting future trends, monitoring policy impact and promoting equity and inclusion. By leveraging this data effectively, policymakers can develop policies that are targeted, effective and responsive to the needs of diverse communities.
Social Cohesion: Analyzing demographics is vital for nurturing social cohesion and fostering understanding among diverse communities. By embracing and respecting variations in Decatur 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 | Decatur | Indiana | National |
| White | 93.19% | 83.99% | 73.35% |
| Black | 0.94% | 9.23% | 12.63% |
| Asian | 0.00% | 1.98% | 5.22% |
| American Indian | 0.15% | 0.24% | 0.82% |
| Native Hawaiian | 0.00% | 0.04% | 0.18% |
| Mixed race | 1.43% | 2.22% | 3.06% |
| Other race | 4.29% | 2.30% | 4.75% |
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