Chesterfield, IL has a population of 336 and is the 21,843rd largest city in the United States. The population density is 621 per sq mi which is 180% higher than the Illinois average and 586% higher than the national average. The median age in Chesterfield is 33 which is approximately 11% lower than the Illinois average of 37. In Chesterfield, 63% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 86% of Chesterfield residents were born in Illinois, 14% 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 Chesterfield is 180% higher than Illinois.
The median age in Chesterfield is 11% lower than Illinois.
In Chesterfield 99.70% of the population is White.
In Chesterfield 0.30% of the population is Black or African American.