| Statistic | Decatur | Indiana | National |
| Population | 10,024 | 6,996,062 | 336,919,644 |
| Population density (sq mi) | 1,736 | 195 | 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% |
Decatur 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 Decatur population is 10,024 and has a population density of 1,736 people per square mile, compared to the national average of 91. The median age of all residents is 41.4, 54% of people 15 years of age or older are married and 39% have kids under the age of 18. In Decatur, 24% of households have a median income that is below $25,000 and 4% of households report a median income above $150,000.
The 5 largest ethnic groups in Decatur are 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 note, 97.4% of households reported speaking English only, while 2% reported speaking Spanish only. Additionally, 0.2% of residents were classified as foreign-born. The Decatur racial demographics and ethnicity breakdown are essential for comprehending and addressing systemic inequities, advancing social justice and inclusion and cultivating resilient communities.
Decatur 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. Decatur has a population density of 1,736 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.
Healthcare Planning: The examination of Decatur 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.
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 Decatur 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 Decatur 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.
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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