| Statistic | Cudahy | Wisconsin | National |
| Population | 18,834 | 5,966,344 | 336,919,644 |
| Population density (sq mi) | 3,947 | 110 | 91 |
| Median age | 44.0 | 39.1 | 37.7 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 52% | 57% | 55% |
| Families w/ Kids under 18 | 36% | 43% | 43% |
| Speak English | 91% | 91% | 79% |
| Speak Spanish | 5% | 5% | 13% |

The demographics of Cudahy 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 18,834, Cudahy exhibits a population density of 3,947 people per square mile, contrasting with the national average of 91. The median age stands at 44, with 52% of individuals aged 15 or older being married and 36% having children under 18. In terms of income equality in Cudahy, 18% of households report a median income below $25,000, while 13% report an income exceeding $150,000, showcasing a diverse economic landscape.
Recognizing the racial demographics and ethnicity breakdown of Cudahy is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In Cudahy, the racial breakdown comprises 90.1% White, 2.7% Black or African American, 1% Asian, 0.4% American Indian, and 0% Native Hawaiian, with 10.1% of the population identifying as Hispanic or Latino. 91.3% of households reported speaking English only, while 5.3% reported speaking Spanish only. Furthermore, 4.2% of residents were categorized as foreign-born.
The Cudahy population density comes in at 3,947 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.
Policy Planning: Demographic data and statistics serve as vital tools for informing policy and decision-making processes across various levels of government, as well as within organizations and businesses. Through the reporting and analysis of demographic data, policymakers, government officials, and organizational leaders can pinpoint areas of need, allocate resources efficiently, and craft tailored policies and programs to address the unique needs and priorities of different demographic groups. The utilization of demographic data in Cudahy is instrumental in policy planning, facilitating resource allocation, evidence-based decision-making, priority identification, trend forecasting, policy impact assessment, and the promotion of equity and inclusion. By harnessing this data effectively, policymakers can devise targeted, impactful, and inclusive policies that cater to the diverse needs of communities.
Urban Development: Cudahy demographic statistics are invaluable for urban planners in designing and developing areas that cater to residents' needs, encompassing housing, transportation, and public services, all while fostering sustainability and enhancing quality of life. Shifts in demographics can influence gentrification and neighborhood transformation, whether in urban or rural settings. As neighborhoods attract new residents with varying income levels and lifestyle preferences, property values may increase, potentially displacing long-term residents and altering the neighborhood's character. Analyzing population density, age distribution, household size, and income levels is crucial for guiding decisions regarding zoning, transportation infrastructure, housing expansion and public amenities. Utilizing Cudahy demographic data in planning and executing affordable housing initiatives can serve as a preventive measure against displacement.
Healthcare Planning: The examination of Cudahy 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.
| Race | Cudahy | Wisconsin | National |
| White | 90.10% | 86.21% | 73.35% |
| Black | 2.69% | 6.29% | 12.63% |
| Asian | 1.01% | 2.57% | 5.22% |
| American Indian | 0.42% | 0.89% | 0.82% |
| Native Hawaiian | 0.00% | 0.02% | 0.18% |
| Mixed race | 4.88% | 2.19% | 3.06% |
| Other race | 0.90% | 1.83% | 4.75% |