Tuscola, IL has a population of 4,478 and is the 6,942nd largest city in the United States. The population density is 1,633 per sq mi which is 635% higher than the Illinois average and 1703% higher than the national average. The median age in Tuscola is 41 which is approximately 10% higher than the Illinois average of 37. In Tuscola, 60% of the population over 15 years of age are married, 94% speak English and 4% speak Spanish. 79% of Tuscola residents were born in Illinois, 17% were born out of state, 1% were born outside of the United States and 3% were foreign born.