Oakwood, IL has a population of 1,666 and is the 12,094th largest city in the United States. The population density is 1,795 per sq mi which is 707% higher than the Illinois average and 1881% higher than the national average. The median age in Oakwood is 35 which is approximately 7% lower than the Illinois average of 37. In Oakwood, 60% of the population over 15 years of age are married, 94% speak English and 5% speak Spanish. 88% of Oakwood residents were born in Illinois, 11% were born out of state, 0% were born outside of the United States and 1% were foreign born.