Greenview, IL has a population of 924 and is the 15,675th largest city in the United States. The population density is 1,086 per sq mi which is 370% higher than the Illinois average and 1099% higher than the national average. The median age in Greenview is 37 which is approximately 1% lower than the Illinois average of 37. In Greenview, 50% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 91% of Greenview residents were born in Illinois, 9% were born out of state, 0% were born outside of the United States and 0% were foreign born.