Georgetown, IL has a population of 3,386 and is the 8,210th largest city in the United States. The population density is 2,095 per sq mi which is 843% higher than the Illinois average and 2213% higher than the national average. The median age in Georgetown is 43 which is approximately 15% higher than the Illinois average of 37. In Georgetown, 51% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 81% of Georgetown residents were born in Illinois, 19% were born out of state, 1% were born outside of the United States and 0% were foreign born.