| Statistic | St. James | Missouri | National |
| Population | 4,184 | 6,326,040 | 336,919,644 |
| Population density (sq mi) | 979 | 92 | 91 |
| Median age | 34.1 | 38.3 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 56% | 57% | 55% |
| Families w/ Kids under 18 | 57% | 42% | 43% |
| Speak English | 97% | 94% | 79% |
| Speak Spanish | 1% | 3% | 13% |

The population of St. James is 4,184, with a population density of 979 people per square mile, diverging from the national average of 91. The median age is 34.1 and 56% of individuals aged 15 or older are married, while 57% have children under 18. As far as income equality in St. James goes, 28% of households have a median income below $25,000, whereas 6% report an income exceeding $150,000. The St. James demographics data can provide indispensable insights into the composition, dynamics and needs of cities, towns or even villages, empowering planners, developers and policymakers to devise strategies that foster prosperity, equity and well-being for all residents.
Recognizing the racial demographics and ethnicity breakdown of St. James is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In St. James, the racial breakdown comprises 95% White, 0.7% Black or African American, 0.7% Asian, 0.8% American Indian, and 0% Native Hawaiian, with 5.8% of the population identifying as Hispanic or Latino. 97.4% of households reported speaking English only, while 1.3% reported speaking Spanish only. Furthermore, 0.8% of residents were categorized as foreign-born.
St. James, characterized by above-average population density, 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. The St. James population density stands at 979, exceeding the national average, at 91 people per square mile, positioning it in a nice position to reap the benefits of densely populated areas.
A family-friendly city like St. James can prioritize the well-being and needs of families, creating an environment where children thrive, parents feel supported and families can enjoy a high quality of life together. Family-friendly cities are also known to foster a strong sense of community, with neighbors supporting and looking out for one another. These areas could also boast excellent educational opportunities, including high-quality schools, libraries and extracurricular activities. Access to quality education is essential for children's development and future success. By prioritizing the well-being of its residents, such cities become vibrant and resilient communities where families can truly flourish. In St. James, 57% of families have kids under the age of 18 and 56% of residents over 15 years old are married. These demographics put this area in a position to reap the benefits of a family-friendly area.
Healthcare Planning: The analysis of St. James demographics can offer insights into healthcare planning and delivery, identifying population health needs, disparities and risk factors. By understanding demographic trends, healthcare providers and policymakers can allocate resources effectively, develop prevention and intervention programs and address health inequities within communities. Through the use of demographic data and statistics, healthcare providers and policymakers aim to achieve equitable, accessible and high-quality healthcare for all individuals and communities. This proactive approach to healthcare planning ensures targeted interventions, efficient resource allocation and customized healthcare services to meet the diverse needs of populations.
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 St. James 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. St. James 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 St. James 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 | St. James | Missouri | National |
| White | 95.02% | 82.53% | 73.35% |
| Black | 0.74% | 11.58% | 12.63% |
| Asian | 0.67% | 1.78% | 5.22% |
| American Indian | 0.79% | 0.42% | 0.82% |
| Native Hawaiian | 0.00% | 0.11% | 0.18% |
| Mixed race | 2.79% | 2.44% | 3.06% |
| Other race | 0.00% | 1.13% | 4.75% |