Granville, IL has a population of 1,305 and is the 13,534th largest city in the United States. The population density is 1,347 per sq mi which is 506% higher than the Illinois average and 1387% higher than the national average. The median age in Granville is 42 which is approximately 13% higher than the Illinois average of 37. In Granville, 61% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 86% of Granville residents were born in Illinois, 14% were born out of state, 0% were born outside of the United States and 1% were foreign born.