Bloomington, IL has a population of 78,368 and is the 446th largest city in the United States. The population density is 2,895 per sq mi which is 1202% higher than the Illinois average and 3096% higher than the national average. The median age in Bloomington is 34 which is approximately 8% lower than the Illinois average of 37. In Bloomington, 55% of the population over 15 years of age are married, 88% speak English and 4% speak Spanish. 68% of Bloomington residents were born in Illinois, 21% were born out of state, 1% were born outside of the United States and 10% were foreign born.