| Statistic | Mandan | North Dakota | National |
| Population | 23,353 | 777,870 | 336,919,644 |
| Population density (sq mi) | 1,729 | 11 | 91 |
| Median age | 35.6 | 35.2 | 37.7 |
| Male/Female ratio | 1.1:1 | 1.1:1 | 1.0:1 |
| Married (15yrs & older) | 63% | 58% | 55% |
| Families w/ Kids under 18 | 46% | 44% | 43% |
| Speak English | 95% | 94% | 79% |
| Speak Spanish | 3% | 2% | 13% |

Understanding the demographics of Mandan 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 Mandan population is 23,353, with a population density of 1,729 people per square mile, diverging from the national average of 91. The median age is 35.6, and 63% of individuals aged 15 or older are married, while 46% have children under 18. As far as income equality in Mandan, 13% of households have a median income below $25,000, whereas 21% report an income exceeding $150,000, indicating a varied economic landscape within the area.
The Mandan racial demographics and ethnicity breakdown could be indispensable tools for recognizing and rectifying systemic inequities, fostering social justice and inclusion and cultivating resilient communities. In Mandan, the racial breakdown reveals 88.6% White, 1.7% Black or African American, 0.9% Asian, 4.6% American Indian and 0.2% Native Hawaiian, with 4.4% of the population identifying as Hispanic or Latino. Of all households, 95% reported speaking English only, while 3% reported speaking Spanish only. Moreover, 1.7% of residents were classified as foreign-born.
Mandan, characterized by above-average population density, plays a pivotal role in promoting environmental sustainability by reducing per capita energy consumption, greenhouse gas emissions and land use. Its compact urban development encourages energy-efficient buildings, active transportation modes like walking and cycling and the utilization of public transit, fostering sustainable lifestyles and mitigating environmental impact. Additionally, the area's dense population contributes to a vibrant social and cultural scene, featuring a diverse array of cultural events, festivals and community activities. This cultural diversity fuels creativity, innovation, and cross-cultural exchange, enhancing the community's social fabric. The Mandan population density stands at 1,729, exceeding the national average, at 91 people per square mile, positioning it in a nice position to reap the benefits of densely populated areas.
Understanding Populations: The examination and analysis of Mandan demographic data can offer valuable insights into the composition and traits of populations, including age, gender, race, ethnicity, income, education and various socio-economic factors. This understanding is essential for addressing the varied needs, preferences, and challenges faced by different demographic groups within communities. Demographics hold significant importance in understanding populations, guiding decision-making processes and promoting equity, inclusion, and overall well-being for all individuals and communities. The Mandan population data serves as a cornerstone for addressing social, economic and environmental challenges, while also fostering the well-being and resilience of societies.
Healthcare Planning: The examination of Mandan 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.
Education Allocation: Mandan 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, Mandan demographic data is indispensable in education for advancing equity, fostering student achievement, and cultivating inclusive learning environments tailored to the needs of all students.

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| Race | Mandan | North Dakota | National |
| White | 88.56% | 88.26% | 73.35% |
| Black | 1.66% | 2.01% | 12.63% |
| Asian | 0.95% | 1.26% | 5.22% |
| American Indian | 4.61% | 5.21% | 0.82% |
| Native Hawaiian | 0.19% | 0.05% | 0.18% |
| Mixed race | 2.18% | 2.44% | 3.06% |
| Other race | 1.85% | 0.77% | 4.75% |