Millington, IL has a population of 629 and is the 18,139th largest city in the United States. The population density is 915 per sq mi which is 301% higher than the Illinois average and 910% higher than the national average. The median age in Millington is 39 which is approximately 5% higher than the Illinois average of 37. In Millington, 63% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 89% of Millington residents were born in Illinois, 10% were born out of state, 1% were born outside of the United States and 0% were foreign born.
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The population density in Millington is 301% higher than Illinois.
The median age in Millington is 5% higher than Illinois.
In Millington 100.00% of the population is White.
In Millington 0.00% of the population is Black or African American.