Otterville, IL has a population of 89 and is the 27,221st largest city in the United States. The population density is 88 per sq mi which is 60% lower than the Illinois average and 3% lower than the national average. The median age in Otterville is 52 which is approximately 39% higher than the Illinois average of 37. In Otterville, 76% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 84% of Otterville residents were born in Illinois, 16% 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 Otterville is 60% lower than Illinois.
The median age in Otterville is 39% higher than Illinois.
In Otterville 97.75% of the population is White.
In Otterville 1.12% of the population is Black or African American.