Sibley, IL has a population of 352 and is the 21,584th largest city in the United States. The population density is 689 per sq mi which is 210% higher than the Illinois average and 660% higher than the national average. The median age in Sibley is 46 which is approximately 24% higher than the Illinois average of 37. In Sibley, 72% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 86% of Sibley residents were born in Illinois, 14% were born out of state, 0% were born outside of the United States and 1% were foreign born.
Find real estate listings
Find rental listings
Did you know?
The population density in Sibley is 210% higher than Illinois.
The median age in Sibley is 24% higher than Illinois.
In Sibley 97.73% of the population is White.
In Sibley 1.14% of the population is Black or African American.