Mechanicsburg, IL has a population of 623 and is the 18,196th largest city in the United States. The population density is 582 per sq mi which is 162% higher than the Illinois average and 542% higher than the national average. The median age in Mechanicsburg is 39 which is approximately 4% higher than the Illinois average of 37. In Mechanicsburg, 55% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 87% of Mechanicsburg residents were born in Illinois, 13% were born out of state, 0% were born outside of the United States and 1% were foreign born.
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The population density in Mechanicsburg is 162% higher than Illinois.
The median age in Mechanicsburg is 4% higher than Illinois.
In Mechanicsburg 97.75% of the population is White.
In Mechanicsburg 1.12% of the population is Black or African American.
In Mechanicsburg 0.32% of the population is Asian.