London Mills, IL has a population of 340 and is the 21,782nd largest city in the United States. The population density is 495 per sq mi which is 123% higher than the Illinois average and 446% higher than the national average. The median age in London Mills is 43 which is approximately 14% higher than the Illinois average of 37. In London Mills, 53% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 89% of London Mills residents were born in Illinois, 11% 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 London Mills is 123% higher than Illinois.
The median age in London Mills is 14% higher than Illinois.
In London Mills 100.00% of the population is White.
In London Mills 0.00% of the population is Black or African American.