Minooka, IL has a population of 11,786 and is the 3,468th largest city in the United States. The population density is 1,253 per sq mi which is 464% higher than the Illinois average and 1283% higher than the national average. The median age in Minooka is 32 which is approximately 15% lower than the Illinois average of 37. In Minooka, 64% of the population over 15 years of age are married, 84% speak English and 12% speak Spanish. 82% of Minooka residents were born in Illinois, 10% were born out of state, 1% were born outside of the United States and 7% were foreign born.