| Statistic | Yankton | South Dakota | National |
| Population | 15,183 | 917,029 | 336,919,644 |
| Population density (sq mi) | 1,784 | 12 | 91 |
| Median age | 41.3 | 36.8 | 37.7 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 56% | 59% | 55% |
| Families w/ Kids under 18 | 44% | 44% | 43% |
| Speak English | 95% | 94% | 79% |
| Speak Spanish | 4% | 2% | 13% |

Yankton demographics provide invaluable insights into the composition, dynamics and needs of urban and rural areas, enabling them to plan, develop, and govern in ways that promote prosperity, equity and well-being for all residents. The Yankton population is 15,183 and has a population density of 1,784 people per square mile, compared to the national average of 91. The median age of all residents is 41.3, 56% of people 15 years of age or older are married and 44% have kids under the age of 18. In Yankton, 18% of households have a median income that is below $25,000 and 11% of households report a median income above $150,000.
Understanding the Yankton racial demographics and ethnic composition is paramount for addressing systemic inequities, advancing social justice and inclusion and fortifying communities. In Yankton, the racial breakdown indicates 88.5% White, 2% Black or African American, 0.2% Asian, 3.9% American Indian and 0% Native Hawaiian, with 4.9% of the population identifying as Hispanic or Latino. Notably, 94.9% of households reported speaking English only, while 3.7% reported speaking Spanish only. Additionally, 2.9% of residents were categorized as foreign-born.
Communities such as Yankton, with population densities higher than the average, play a significant role in promoting environmental sustainability by decreasing per capita energy consumption, greenhouse gas emissions and land use. Their compact urban development encourages the adoption of energy-efficient buildings, walking, cycling, and public transportation, fostering sustainable lifestyles and minimizing environmental impact. Additionally, densely populated areas tend to cultivate vibrant social and cultural scenes, fueled by a diverse population that contributes to a myriad of cultural events, festivals and community activities. This cultural diversity sparks creativity, innovation and cross-cultural exchange, enriching the social fabric of the community. Yankton has a population density of 1,784, surpassing the national average of 91 people per square mile, as it stands poised to reap the benefits of dense urban living.
Understanding Populations: Analyzing and interpreting the Yankton demographic data provides us with valuable insights into the characteristics and composition of populations, encompassing age, gender, race, ethnicity, income, education and other socio-economic variables. This understanding is crucial for addressing the diverse needs, preferences and challenges encountered by various demographic groups within communities. Demographics play a crucial role in understanding populations, informing decision-making processes, and advancing equity, inclusion, and overall well-being for all individuals and communities. The Yankton population and demographic data serves as a foundation for addressing social, economic and environmental challenges, while also nurturing the well-being and resilience of societies.
Policy Planning: At various levels of government and within organizations and businesses, demographic data and statistics serve as essential tools for guiding policy and decision-making processes. Through the examination and interpretation of Yankton demographic stats and data, policymakers, government officials, and organizational leaders can pinpoint areas requiring attention, allocate resources judiciously and design policies and initiatives tailored to the specific needs and preferences of distinct demographic segments. The utilization of Yankton demographic data plays a pivotal role in policy formulation by informing resource allocation, facilitating evidence-based decision-making, identifying key priorities, predicting future trends, assessing policy effectiveness, and advancing principles of equity and inclusivity. Through effective utilization of this data, policymakers can craft policies that are targeted, efficient, and responsive to the diverse needs of communities.
Healthcare Planning: The analysis of Yankton demographics can offer insights into healthcare planning and delivery, identifying population health needs, disparities and risk factors. By understanding demographic trends, healthcare providers and policymakers can allocate resources effectively, develop prevention and intervention programs and address health inequities within communities. Through the use of demographic data and statistics, healthcare providers and policymakers aim to achieve equitable, accessible and high-quality healthcare for all individuals and communities. This proactive approach to healthcare planning ensures targeted interventions, efficient resource allocation and customized healthcare services to meet the diverse needs of populations.
| Race | Yankton | South Dakota | National |
| White | 88.54% | 84.77% | 73.35% |
| Black | 1.96% | 1.65% | 12.63% |
| Asian | 0.18% | 1.33% | 5.22% |
| American Indian | 3.88% | 8.72% | 0.82% |
| Native Hawaiian | 0.00% | 0.04% | 0.18% |
| Mixed race | 4.71% | 2.61% | 3.06% |
| Other race | 0.73% | 0.88% | 4.75% |