Oneida, IL has a population of 700 and is the 17,483rd largest city in the United States. The population density is 919 per sq mi which is 313% higher than the Illinois average and 914% higher than the national average. The median age in Oneida is 41 which is approximately 8% higher than the Illinois average of 37. In Oneida, 61% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 89% of Oneida 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 Oneida is 313% higher than Illinois.
The median age in Oneida is 8% higher than Illinois.
In Oneida 94.43% of the population is White.
In Oneida 3.29% of the population is Black or African American.