| Statistic | Decatur | Texas | National |
| Population | 7,200 | 30,040,435 | 336,919,644 |
| Population density (sq mi) | 852 | 115 | 91 |
| Median age | 33.3 | 34.2 | 37.7 |
| Male/Female ratio | 0.8:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 63% | 56% | 55% |
| Families w/ Kids under 18 | 63% | 48% | 43% |
| Speak English | 76% | 65% | 79% |
| Speak Spanish | 23% | 30% | 13% |

The demographics of Decatur 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 7,200, Decatur exhibits a population density of 852 people per square mile, contrasting with the national average of 91. The median age stands at 33.3, with 63% of individuals aged 15 or older being married and 63% having children under 18. In terms of income equality in Decatur, 14% of households report a median income below $25,000, while 23% report an income exceeding $150,000, showcasing a diverse economic landscape.
The Decatur 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 Decatur is 89% White, 3.5% Black or African American, 0.4% Asian, 0.3% American Indian and 0% Native Hawaiian - 35.9% of the population identify as Hispanic or Latino. Of all households, 75.6% reported speaking English only, while 23.3% reported speaking Spanish only. A total of 12.2% of residents were considered 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 852, surpassing the national average of 91 people per square mile, as it stands poised to reap the benefits of dense urban living.
A family-friendly city like Decatur prioritizes the well-being and requirements of families, creating an atmosphere conducive to the flourishing of children, the support of parents and the collective enjoyment of a superior quality of life. These cities are characterized by their fostering of strong community bonds, where neighbors actively support and watch out for one another. Additionally, they often offer outstanding educational opportunities, including top-tier schools, well-stocked libraries and diverse extracurricular activities. Access to quality education is indispensable for the holistic development and future achievements of children. By giving precedence to the welfare of its inhabitants, such cities transform into vibrant and resilient communities where families can truly thrive. In Decatur, 63% of families have children under the age of 18, and 63% of residents aged over 15 are married. These demographic characteristics position this area to fully reap the benefits of being a family-friendly area.
Social Cohesion: The examination and interpretation of demographics are pivotal for nurturing social cohesion and promoting understanding among diverse communities. By acknowledging and honoring differences in Decatur demographics, societies can champion inclusivity, diversity and social cohesion while addressing social disparities and advocating for equitable opportunities. Racial demographics can potentially showcase the diversity of a population and are crucial for fostering inclusive and embracing communities. Embracing diversity fortifies social bonds, fosters cultural appreciation and enriches society by celebrating the contributions of individuals from diverse racial and ethnic backgrounds.
Healthcare Planning: By analyzing the Decatur demographic data, it can potentially inform healthcare planning and delivery by identifying population health needs, disparities, and risk factors. Understanding demographic trends helps healthcare providers and policymakers allocate resources, develop prevention and intervention programs, and address health inequities within communities. By leveraging demographic data, healthcare providers and policymakers can work towards achieving equitable, accessible, and high-quality healthcare for all individuals and communities. This proactive approach to healthcare planning ensures that interventions are targeted, resources are allocated efficiently, and healthcare services are tailored to meet the diverse needs of populations.
Education Allocation: Utilizing census data like Decatur demographics can be useful in guiding education planning, as it helps identify student demographics, school enrollment trends and educational needs. This data assists schools and policymakers in allocating resources and devising effective educational programs. It serves as a vital tool for recognizing disparities in educational access and outcomes among various demographic groups, including racial and ethnic minorities, socio-economic status and students with disabilities. By disaggregating data based on demographic factors, education planners can pinpoint areas of inequity and implement targeted interventions to enhance access, support and outcomes for marginalized students. In essence, Decatur demographic statistics can play an indispensable role in education by promoting equity, bolstering student success and cultivating inclusive learning environments tailored to meet the needs of all students.
| Race | Decatur | Texas | National |
| White | 88.99% | 74.84% | 73.35% |
| Black | 3.48% | 11.95% | 12.63% |
| Asian | 0.42% | 4.36% | 5.22% |
| American Indian | 0.27% | 0.48% | 0.82% |
| Native Hawaiian | 0.00% | 0.08% | 0.18% |
| Mixed race | 1.33% | 2.50% | 3.06% |
| Other race | 5.50% | 5.79% | 4.75% |