Mound City, IL has a population of 624 and is the 18,185th largest city in the United States. The population density is 924 per sq mi which is 316% higher than the Illinois average and 920% higher than the national average. The median age in Mound City is 37 which is approximately equal to the Illinois average of 37. In Mound City, 42% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 67% of Mound City residents were born in Illinois, 31% were born out of state, 0% were born outside of the United States and 2% were foreign born.
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The population density in Mound City is 316% higher than Illinois.
The median age in Mound City is equal to Illinois.
In Mound City 44.39% of the population is White.
In Mound City 54.01% of the population is Black or African American.