Cortland is a city located in Illinois. Cortland has a 2020 population of 11,642. Cortland is currently growing at a rate of 1.04% annually and its population has increased by 5.82% since the most recent census, which recorded a population of 11,002 in 2010. Cortland reached it's highest population of 11,642 in 2021.
The average household income in Cortland is $88,822 with a poverty rate of 8.42%. The median rental costs in recent years comes to $1,141 per month, and the median house value is $173,900. The median age in Cortland is 34.8 years, 34.1 years for males, and 35 years for females.