| Statistic | Gurnee | Illinois | National |
| Population | 31,504 | 13,081,969 | 336,919,644 |
| Population density (sq mi) | 2,334 | 236 | 91 |
| Median age | 39.2 | 37.4 | 37.7 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 60% | 55% | 55% |
| Families w/ Kids under 18 | 48% | 44% | 43% |
| Speak English | 76% | 77% | 79% |
| Speak Spanish | 9% | 13% | 13% |

Understanding the demographics of Gurnee 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 Gurnee population is 31,504, with a population density of 2,334 people per square mile, diverging from the national average of 91. The median age is 39.2, and 60% of individuals aged 15 or older are married, while 48% have children under 18. As far as income equality in Gurnee, 10% of households have a median income below $25,000, whereas 40% report an income exceeding $150,000, indicating a varied economic landscape within the area.
Recognizing the racial demographics and ethnicity breakdown of Gurnee is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In Gurnee, the racial breakdown comprises 70.2% White, 7.8% Black or African American, 12.8% Asian, 1% American Indian, and 0% Native Hawaiian, with 13.9% of the population identifying as Hispanic or Latino. 76.2% of households reported speaking English only, while 8.7% reported speaking Spanish only. Furthermore, 15.4% of residents were categorized as foreign-born.
High population density areas typically offer a diverse array of amenities and services within walking distance or a short commute, enriching residents' quality of life and well-being. Accessible healthcare facilities, educational institutions, cultural venues, restaurants, shopping and public transportation options contribute to the convenience and vibrancy of these communities. The population density of of Gurnee is 2,334 people per square mile, which far exceeds the national average of 91 and ranks among the most densely populated cities in the nation.
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 Gurnee 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 Gurnee 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.
Education Allocation: In education planning, Gurnee demographic data can be invaluable for identifying student demographics, school enrollment trends and educational needs. This data aids schools and policymakers in resource allocation and the formulation of effective educational programs. It serves as a crucial tool for recognizing disparities in educational access and outcomes among different demographic groups, including 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. Overall, Gurnee demographic data can be an essential tool in education for promoting equity, facilitating student success, and nurturing inclusive learning environments that cater to the needs of all students.
Healthcare Planning: The examination of Gurnee 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.

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| Race | Gurnee | Illinois | National |
| White | 70.17% | 72.14% | 73.35% |
| Black | 7.75% | 14.30% | 12.63% |
| Asian | 12.84% | 5.10% | 5.22% |
| American Indian | 1.03% | 0.23% | 0.82% |
| Native Hawaiian | 0.00% | 0.03% | 0.18% |
| Mixed race | 4.77% | 2.34% | 3.06% |
| Other race | 3.44% | 5.86% | 4.75% |