| Statistic | Rexburg | Idaho | National |
| Population | 29,874 | 1,848,209 | 336,919,644 |
| Population density (sq mi) | 3,081 | 22 | 91 |
| Median age | 23.1 | 35.7 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 64% | 60% | 55% |
| Families w/ Kids under 18 | 41% | 45% | 43% |
| Speak English | 86% | 89% | 79% |
| Speak Spanish | 9% | 8% | 13% |

Understanding the demographics of Rexburg 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 Rexburg population is 29,874, with a population density of 3,081 people per square mile, diverging from the national average of 91. The median age is 23.1, and 64% of individuals aged 15 or older are married, while 41% have children under 18. As far as income equality in Rexburg, 40% of households have a median income below $25,000, whereas 8% report an income exceeding $150,000, indicating a varied economic landscape within the area.
The Rexburg 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 Rexburg, the racial breakdown reveals 90.4% White, 0.3% Black or African American, 2% Asian, 0.1% American Indian and 0.2% Native Hawaiian, with 8.6% of the population identifying as Hispanic or Latino. Of all households, 85.6% reported speaking English only, while 8.9% reported speaking Spanish only. Moreover, 5.4% of residents were classified as foreign-born.
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. Rexburg has a population density of 3,081 people per square mile, which far exceeds the national average of 91 and ranks among the most densely populated cities in the country.
Healthcare Planning: The examination of Rexburg 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.
Social Cohesion: The examination and interpretation of demographics are pivotal for nurturing social cohesion and promoting understanding among diverse communities. By acknowledging and honoring differences in Rexburg demographics, societies can champion inclusivity, diversity and social cohesion while addressing social disparities and advocating for equitable opportunities. Racial demographics can potentially showcase the diversity of a population and are crucial for fostering inclusive and embracing communities. Embracing diversity fortifies social bonds, fosters cultural appreciation and enriches society by celebrating the contributions of individuals from diverse racial and ethnic backgrounds.
Understanding Populations: The examination and analysis of Rexburg 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 Rexburg population data serves as a cornerstone for addressing social, economic and environmental challenges, while also fostering the well-being and resilience of societies.

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| Race | Rexburg | Idaho | National |
| White | 90.44% | 91.30% | 73.35% |
| Black | 0.25% | 0.64% | 12.63% |
| Asian | 1.95% | 1.32% | 5.22% |
| American Indian | 0.09% | 1.31% | 0.82% |
| Native Hawaiian | 0.24% | 0.12% | 0.18% |
| Mixed race | 3.95% | 2.57% | 3.06% |
| Other race | 3.08% | 2.74% | 4.75% |