Kilbourne, IL has a population of 310 and is the 22,324th largest city in the United States. The population density is 349 per sq mi which is 57% higher than the Illinois average and 285% higher than the national average. The median age in Kilbourne is 40 which is approximately 6% higher than the Illinois average of 37. In Kilbourne, 47% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 89% of Kilbourne residents were born in Illinois, 10% were born out of state, 0% were born outside of the United States and 0% were foreign born.
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The population density in Kilbourne is 57% higher than Illinois.
The median age in Kilbourne is 6% higher than Illinois.
In Kilbourne 98.39% of the population is White.
In Kilbourne 0.00% of the population is Black or African American.