Eagle Butte, SD has a population of 1,205 and is the 14,003rd largest city in the United States. The population density is 1,028 per sq mi which is 9413% higher than the South Dakota average and 1035% higher than the national average. The median age in Eagle Butte is 25 which is approximately 33% lower than the South Dakota average of 37. In Eagle Butte, 28% of the population over 15 years of age are married, 84% speak English and 0% speak Spanish. 92% of Eagle Butte residents were born in South Dakota, 7% were born out of state, 0% were born outside of the United States and 0% were foreign born.