| Statistic | Montgomery | Illinois | National |
| Population | 20,189 | 13,081,969 | 336,919,644 |
| Population density (sq mi) | 2,158 | 236 | 91 |
| Median age | 30.2 | 37.4 | 37.7 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 50% | 55% | 55% |
| Families w/ Kids under 18 | 63% | 44% | 43% |
| Speak English | 74% | 77% | 79% |
| Speak Spanish | 25% | 13% | 13% |

The population in Montgomery is 20,189, while the population density is 2,158 people per square mile, contrasting with the national average of 91. The median age stands at 30.2, with 50% of individuals aged 15 or older being married and 63% having children under 18. In terms of household income equality in Montgomery, 9% of households report a median income below $25,000, while 28% report an income exceeding $150,000. The Montgomery 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 5 largest ethnic groups in Montgomery are 78.1% White, 3.7% Black or African American, 0.9% Asian, 0.5% American Indian and 0.1% Native Hawaiian, with 32.4% of the population identifying as Hispanic or Latino. Of note, 73.7% of households reported speaking English only, while 25.2% reported speaking Spanish only. Additionally, 9.3% of residents were classified as foreign-born. The Montgomery racial demographics and ethnicity breakdown are essential for comprehending and addressing systemic inequities, advancing social justice and inclusion and cultivating resilient communities.
In areas with high population density, residents enjoy a wealth of amenities and services conveniently located within walking distance or a short commute. Access to healthcare facilities, educational institutions, cultural venues, dining options, retail stores and public transit enhances residents' quality of life and overall well-being. Montgomery has a population density of 2,158 people per square mile, which far exceeds the national average of 91 and ranks among the most densely populated cities in the country.
A family-friendly city like Montgomery 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 Montgomery, 63% of families have kids under the age of 18 and 50% 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.
Urban Development: Urban planners could use Montgomery demographic data to design and create areas that accommodate the needs of residents, including housing, transportation and public services, while promoting sustainability and quality of life. Demographic shifts can contribute to gentrification and neighborhood change in urban or rural areas. As neighborhoods attract new residents with different income levels and lifestyle preferences, property values may rise, leading to displacement of long-time residents and changes in the character and identity of the neighborhood. Understanding population density, age distribution, household size and income levels helps inform decisions related to zoning, transportation infrastructure, housing development and public amenities. Lastly, using Montgomery demographics for planning and development of affordable housing can help prevent displacement.
Healthcare Planning: By analyzing the Montgomery demographic data, it can potentially inform healthcare planning and delivery by identifying population health needs, disparities, and risk factors. Understanding demographic trends helps healthcare providers and policymakers allocate resources, develop prevention and intervention programs, and address health inequities within communities. By leveraging demographic data, healthcare providers and policymakers can work towards achieving equitable, accessible, and high-quality healthcare for all individuals and communities. This proactive approach to healthcare planning ensures that interventions are targeted, resources are allocated efficiently, and healthcare services are tailored to meet the diverse needs of populations.
Social Cohesion: Analyzing demographics is vital for nurturing social cohesion and fostering understanding among diverse communities. By embracing and respecting variations in Montgomery 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.

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| Race | Montgomery | Illinois | National |
| White | 78.08% | 72.14% | 73.35% |
| Black | 3.66% | 14.30% | 12.63% |
| Asian | 0.91% | 5.10% | 5.22% |
| American Indian | 0.55% | 0.23% | 0.82% |
| Native Hawaiian | 0.14% | 0.03% | 0.18% |
| Mixed race | 4.79% | 2.34% | 3.06% |
| Other race | 11.87% | 5.86% | 4.75% |