Keithsburg, IL has a population of 558 and is the 18,893rd largest city in the United States. The population density is 218 per sq mi which is 2% lower than the Illinois average and 141% higher than the national average. The median age in Keithsburg is 49 which is approximately 30% higher than the Illinois average of 37. In Keithsburg, 62% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 68% of Keithsburg residents were born in Illinois, 31% 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 Keithsburg is 2% lower than Illinois.
The median age in Keithsburg is 30% higher than Illinois.
In Keithsburg 97.85% of the population is White.
In Keithsburg 0.00% of the population is Black or African American.