Olive Branch, IL has a population of 617 and is the 18,278th largest city in the United States. The population density is 64 per sq mi which is 71% lower than the Illinois average and 29% lower than the national average. The median age in Olive Branch is 40 which is approximately 7% higher than the Illinois average of 37. In Olive Branch, 64% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 62% of Olive Branch residents were born in Illinois, 38% 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 Olive Branch is 71% lower than Illinois.
The median age in Olive Branch is 7% higher than Illinois.
In Olive Branch 100.00% of the population is White.
In Olive Branch 0.00% of the population is Black or African American.