Arlington, IL has a population of 199 and is the 24,464th largest city in the United States. The population density is 505 per sq mi which is 127% higher than the Illinois average and 457% higher than the national average. The median age in Arlington is 45 which is approximately 19% higher than the Illinois average of 37. In Arlington, 62% of the population over 15 years of age are married, 93% speak English and 5% speak Spanish. 89% of Arlington residents were born in Illinois, 10% 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 Arlington is 127% higher than Illinois.
The median age in Arlington is 19% higher than Illinois.
In Arlington 88.44% of the population is White.
In Arlington 1.51% of the population is Black or African American.