| Statistic | Mokena | Illinois | National |
| Population | 21,535 | 13,081,969 | 336,919,644 |
| Population density (sq mi) | 2,396 | 236 | 91 |
| Median age | 42.0 | 37.4 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 66% | 55% | 55% |
| Families w/ Kids under 18 | 38% | 44% | 43% |
| Speak English | 94% | 77% | 79% |
| Speak Spanish | 3% | 13% | 13% |

The demographics of Mokena 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 21,535, Mokena exhibits a population density of 2,396 people per square mile, contrasting with the national average of 91. The median age stands at 42, with 66% of individuals aged 15 or older being married and 38% having children under 18. In terms of income equality in Mokena, 6% of households report a median income below $25,000, while 45% report an income exceeding $150,000, showcasing a diverse economic landscape.
Recognizing the racial demographics and ethnicity breakdown of Mokena is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In Mokena, the racial breakdown comprises 96.4% White, 1.2% Black or African American, 0.8% Asian, 0% American Indian, and 0% Native Hawaiian, with 5.4% of the population identifying as Hispanic or Latino. 94.4% of households reported speaking English only, while 2.6% reported speaking Spanish only. Furthermore, 4% of residents were categorized as foreign-born.
The Mokena population density comes in at 2,396 people per square mile, which makes it one of the most densely populated areas in the country, far surpassing the national average of 91. Areas characterized by high population density often boast an abundance of amenities and services within close proximity, providing residents with convenient access to healthcare, education, cultural attractions, dining establishments, retail outlets and transportation options. This accessibility could potentially enhance residents' overall quality of life and well-being.
Healthcare Planning: The analysis of Mokena 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.
Urban Development: By leveraging demographic data in Mokena, urban planners can tailor areas to meet the needs of any resident across housing, transportation and public services, all while fostering sustainability and elevating quality of life. Demographic changes can fuel gentrification and neighborhood transformation, whether in urban or rural settings. As neighborhoods attract newcomers with varying income levels and lifestyle preferences, property values may appreciate, potentially displacing established residents and reshaping the neighborhood's fabric. A nuanced understanding of population density, age distribution, household size and income levels is pivotal for guiding decisions on zoning, transportation infrastructure, housing development and public amenities. Utilizing the demographic data in planning and implementing affordable housing initiatives can help mitigate displacement risks and promote inclusive communities.
Policy Planning: Demographic data and statistics play a fundamental role in informing policy and decision-making processes across government entities, organizations and businesses. Through the analysis and interpretation of Mokena demographic data, policymakers, government officials, and organizational leaders can pinpoint areas of concern, allocate resources efficiently, and devise policies and initiatives tailored to the specific needs and preferences of distinct demographic groups. The utilization of demographics in Mokena can be crucial in policy planning, facilitating evidence-based decision-making, identifying key priorities, forecasting future trends, monitoring policy outcomes and advancing principles of equity and inclusion. By harnessing this data effectively, policymakers can develop policies that are targeted, effective and inclusive, thus meeting the diverse needs of communities.

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| Race | Mokena | Illinois | National |
| White | 96.41% | 72.14% | 73.35% |
| Black | 1.20% | 14.30% | 12.63% |
| Asian | 0.80% | 5.10% | 5.22% |
| American Indian | 0.03% | 0.23% | 0.82% |
| Native Hawaiian | 0.00% | 0.03% | 0.18% |
| Mixed race | 1.46% | 2.34% | 3.06% |
| Other race | 0.11% | 5.86% | 4.75% |