| Statistic | St. John | Kansas | National |
| Population | 1,427 | 3,026,509 | 336,919,644 |
| Population density (sq mi) | 734 | 37 | 91 |
| Median age | 33.6 | 36.2 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 69% | 59% | 55% |
| Families w/ Kids under 18 | 43% | 45% | 43% |
| Speak English | 91% | 89% | 79% |
| Speak Spanish | 7% | 8% | 13% |

Understanding the demographics of St. John is essential for gaining insights into the composition, dynamics and needs of any city, town or village. This knowledge empowers planners, developers and policymakers to strategize effectively, promoting prosperity, equity and well-being for all residents. The St. John population is 1,427, with a population density of 734 people per square mile, diverging from the national average of 91. The median age is 33.6, and 69% of individuals aged 15 or older are married, while 43% have children under 18. As far as income equality in St. John, 20% of households have a median income below $25,000, whereas 11% report an income exceeding $150,000, indicating a varied economic landscape within the area.
The 5 largest ethnic groups in St. John are 94% White, 0% Black or African American, 0% Asian, 1.3% American Indian and 0% Native Hawaiian, with 19.5% of the population identifying as Hispanic or Latino. Of note, 90.9% of households reported speaking English only, while 7.3% reported speaking Spanish only. Additionally, 6.6% of residents were classified as foreign-born. The St. John racial demographics and ethnicity breakdown are essential for comprehending and addressing systemic inequities, advancing social justice and inclusion and cultivating resilient communities.
Areas with lower than average population density like St. John, could offer a more relaxed pace of life, closer connection to nature, extraordinary sense of community, greater affordability and tend to be safer, making them attractive options for those seeking a quieter, more peaceful lifestyle away from the hustle and bustle of urban living. These areas often have a lower cost of living, with housing prices that are typically more affordable and residents may also benefit from lower taxes, living expenses and insurance rates. Low population density areas also tend to have lower crime rates compared to densely populated urban areas. This can contribute to a greater sense of safety and security for residents and their families. The St. John population density is 734 people per square mile, which is lower than 50% of the cities across the country, putting it in a position to take advantage of all these great benefits.
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. John 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. John 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.
Education Allocation: St. John 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, St. John demographic data is indispensable in education for advancing equity, fostering student achievement, and cultivating inclusive learning environments tailored to the needs of all students.
Understanding Populations: Reporting and analyzing the demographic data in St. John can allow us to gain insights into the characteristics and composition of populations, including age, gender, race, ethnicity, income, education and other socio-economic factors. This understanding is essential for addressing the diverse needs, preferences and challenges of different demographic groups within communities. Demographics can play a crucial role in understanding populations, informing decision-making processes and promoting equity, inclusion, and well-being for all individuals and communities. St. John population data serves as a foundation for addressing social, economic, and environmental challenges and promoting the well-being and resilience of societies.

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| Race | St. John | Kansas | National |
| White | 94.05% | 85.19% | 73.35% |
| Black | 0.00% | 5.79% | 12.63% |
| Asian | 0.00% | 2.68% | 5.22% |
| American Indian | 1.31% | 0.82% | 0.82% |
| Native Hawaiian | 0.00% | 0.06% | 0.18% |
| Mixed race | 3.27% | 3.31% | 3.06% |
| Other race | 1.38% | 2.15% | 4.75% |