| Statistic | Bay St. Louis | Mississippi | National |
| Population | 13,930 | 3,071,042 | 336,919,644 |
| Population density (sq mi) | 948 | 65 | 91 |
| Median age | 49.5 | 36.7 | 37.7 |
| Male/Female ratio | 0.9:1 | 0.9:1 | 1.0:1 |
| Married (15yrs & older) | 61% | 54% | 55% |
| Families w/ Kids under 18 | 47% | 42% | 43% |
| Speak English | 97% | 96% | 79% |
| Speak Spanish | 1% | 2% | 13% |
The population in Bay St. Louis is 13,930, while the population density is 948 people per square mile, contrasting with the national average of 91. The median age stands at 49.5, with 61% of individuals aged 15 or older being married and 47% having children under 18. In terms of household income equality in Bay St. Louis, 25% of households report a median income below $25,000, while 12% report an income exceeding $150,000. The Bay St. Louis 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.
The Bay St. Louis 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 Bay St. Louis is 76.8% White, 16.8% Black or African American, 1.7% Asian, 0.7% American Indian and 0% Native Hawaiian - 6.9% of the population identify as Hispanic or Latino. Of all households, 96.7% reported speaking English only, while 1.1% reported speaking Spanish only. A total of 2.3% of residents were considered foreign born.
Bay St. Louis 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. Bay St. Louis has a population density of 948 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.
Policy Planning: At various levels of government and within organizations and businesses, demographic data and statistics serve as essential tools for guiding policy and decision-making processes. Through the examination and interpretation of Bay St. Louis demographic stats and data, policymakers, government officials, and organizational leaders can pinpoint areas requiring attention, allocate resources judiciously and design policies and initiatives tailored to the specific needs and preferences of distinct demographic segments. The utilization of Bay St. Louis demographic data plays a pivotal role in policy formulation by informing resource allocation, facilitating evidence-based decision-making, identifying key priorities, predicting future trends, assessing policy effectiveness, and advancing principles of equity and inclusivity. Through effective utilization of this data, policymakers can craft policies that are targeted, efficient, and responsive to the diverse needs of communities.
Healthcare Planning: The examination of Bay St. Louis 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.
Urban Development: Urban planners can leverage demographics data in Bay St. Louis 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 Bay St. Louis demographics data into planning and implementing affordable housing initiatives can help mitigate displacement risks.
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| Race | Bay St. Louis | Mississippi | National |
| White | 76.79% | 59.01% | 73.35% |
| Black | 16.80% | 37.51% | 12.63% |
| Asian | 1.66% | 0.96% | 5.22% |
| American Indian | 0.72% | 0.44% | 0.82% |
| Native Hawaiian | 0.00% | 0.02% | 0.18% |
| Mixed race | 3.83% | 1.18% | 3.06% |
| Other race | 0.20% | 0.88% | 4.75% |
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