In the city, the population was spread out with 9.8% under the age of 18, 44.1% from 18 to 24, 18.7% from 25 to 44, 13.7% from 45 to 64, and 7.9% who were 65 years of age or older.
These figures may be somewhat skewed as 10,000 residents of Charleston are students at Eastern Illinois University, many of whom have their primary place of residence in other cities though they spend nine months of the year in Charleston.