Cherry Valley, IL has a population of 3,129 and is the 8,593rd largest city in the United States. The population density is 374 per sq mi which is 68% higher than the Illinois average and 313% higher than the national average. The median age in Cherry Valley is 51 which is approximately 37% higher than the Illinois average of 37. In Cherry Valley, 64% of the population over 15 years of age are married, 88% speak English and 8% speak Spanish. 71% of Cherry Valley residents were born in Illinois, 24% were born out of state, 2% were born outside of the United States and 3% were foreign born.