Cortland demographics profile

Population density (sq mi)1,13322891
Median age30.437.437.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)58%55%55%
Families w/ Kids under 1867%44%43%
Speak English83%77%79%
Speak Spanish14%13%13%
Cortland, IL has a population of 4,135 and is the 7,296th largest city in the United States. The population density is 1,133 per sq mi which is 397% higher than the Illinois average and 1151% higher than the national average. The median age in Cortland is 30 which is approximately 19% lower than the Illinois average of 37. In Cortland, 58% of the population over 15 years of age are married, 83% speak English and 14% speak Spanish. 76% of Cortland residents were born in Illinois, 12% were born out of state, 0% were born outside of the United States and 11% were foreign born.
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Did you know?

  • The population density in Cortland is 397% higher than Illinois.
  • The median age in Cortland is 19% lower than Illinois.
  • In Cortland 89.63% of the population is White.
  • In Cortland 3.87% of the population is Black or African American.
  • In Cortland 2.22% of the population is Asian.

Compare Cortland, IL Demographics To Other Cities

Cortland population breakdown by race

Black or African American3.87%14.30%12.63%
American Indian0.00%0.23%0.82%
Native Hawaiian0.00%0.03%0.18%
Mixed race1.89%2.34%3.06%
Other race2.39%5.86%4.75%
In Cortland, 18.0% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Cortland age breakdown

Marital status

Age of children in married couples

Source: The Cortland, IL demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).
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