| Statistic | Gretna | Louisiana | National |
| Population | 18,157 | 4,773,985 | 336,919,644 |
| Population density (sq mi) | 4,535 | 111 | 91 |
| Median age | 41.4 | 36.2 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 41% | 52% | 55% |
| Families w/ Kids under 18 | 48% | 43% | 43% |
| Speak English | 80% | 92% | 79% |
| Speak Spanish | 16% | 4% | 13% |
The population in Gretna is 18,157, while the population density is 4,535 people per square mile, contrasting with the national average of 91. The median age stands at 41.4, with 41% of individuals aged 15 or older being married and 48% having children under 18. In terms of household income equality in Gretna, 48% of households report a median income below $25,000, while 9% report an income exceeding $150,000. The Gretna demographics data can provide invaluable insight into the composition, dynamics and needs of urban and rural areas, enabling planners, developers and policymakers to strategize effectively for the promotion of prosperity, equity and well-being for all residents in the area.
Recognizing the racial demographics and ethnicity breakdown of Gretna is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In Gretna, the racial breakdown comprises 53.6% White, 30.2% Black or African American, 2.1% Asian, 0.3% American Indian, and 0.1% Native Hawaiian, with 19.2% of the population identifying as Hispanic or Latino. 79.8% of households reported speaking English only, while 16.3% reported speaking Spanish only. Furthermore, 16.4% of residents were categorized as foreign-born.
In areas with high population density, residents enjoy a wealth of amenities and services conveniently located within walking distance or a short commute. Access to healthcare facilities, educational institutions, cultural venues, dining options, retail stores and public transit enhances residents' quality of life and overall well-being. Gretna has a population density of 4,535 people per square mile, which far exceeds the national average of 91 and ranks among the most densely populated cities in the country.
Urban Development: Urban planners could use Gretna 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 Gretna demographics for planning and development of affordable housing can help prevent displacement.
Healthcare Planning: An analysis of Gretna 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.
Education Allocation: Gretna demographics can play a pivotal role in guiding education planning, offering insights into student demographics, school enrollment patterns, and educational requirements. This data aids schools and policymakers in resource allocation and the development of effective educational programs. It serves as a critical tool for identifying disparities in educational access and outcomes among diverse demographic groups, such as racial and ethnic minorities, socio-economic status, and students with disabilities. Through the disaggregation of data by demographic factors, education planners can pinpoint areas of inequity and implement targeted interventions to enhance access, support, and outcomes for marginalized students. Ultimately, Gretna demographic data is indispensable in education for advancing equity, fostering student achievement, and cultivating inclusive learning environments tailored to the needs of all students.
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| Race | Gretna | Louisiana | National |
| White | 53.59% | 62.62% | 73.35% |
| Black | 30.16% | 32.16% | 12.63% |
| Asian | 2.11% | 1.69% | 5.22% |
| American Indian | 0.31% | 0.57% | 0.82% |
| Native Hawaiian | 0.06% | 0.03% | 0.18% |
| Mixed race | 6.95% | 1.83% | 3.06% |
| Other race | 6.82% | 1.09% | 4.75% |
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