East Dundee, IL has a population of 3,125 and is the 8,598th largest city in the United States. The population density is 1,128 per sq mi which is 407% higher than the Illinois average and 1145% higher than the national average. The median age in East Dundee is 51 which is approximately 36% higher than the Illinois average of 37. In East Dundee, 59% of the population over 15 years of age are married, 87% speak English and 9% speak Spanish. 76% of East Dundee residents were born in Illinois, 16% were born out of state, 2% were born outside of the United States and 6% were foreign born.