Elmwood, IL has a population of 2,262 and is the 10,355th largest city in the United States. The population density is 1,587 per sq mi which is 614% higher than the Illinois average and 1652% higher than the national average. The median age in Elmwood is 42 which is approximately 13% higher than the Illinois average of 37. In Elmwood, 66% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 87% of Elmwood residents were born in Illinois, 12% were born out of state, 1% were born outside of the United States and 0% were foreign born.