Dakota, IL has a population of 498 and is the 19,561st largest city in the United States. The population density is 1,735 per sq mi which is 680% higher than the Illinois average and 1815% higher than the national average. The median age in Dakota is 37 which is approximately equal to the Illinois average of 37. In Dakota, 51% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 75% of Dakota residents were born in Illinois, 23% were born out of state, 0% were born outside of the United States and 2% were foreign born.