Havana, IL has a population of 3,251 and is the 8,405th largest city in the United States. The population density is 1,184 per sq mi which is 432% higher than the Illinois average and 1206% higher than the national average. The median age in Havana is 42 which is approximately 13% higher than the Illinois average of 37. In Havana, 67% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 88% of Havana residents were born in Illinois, 10% were born out of state, 0% were born outside of the United States and 1% were foreign born.