Dayton, VA has a population of 1,633 and is the 12,212th largest city in the United States. The population density is 1,582 per sq mi which is 727% higher than the Virginia average and 1646% higher than the national average. The median age in Dayton is 38 which is approximately 1% higher than the Virginia average of 38. In Dayton, 56% of the population over 15 years of age are married, 77% speak English and 17% speak Spanish. 57% of Dayton residents were born in Virginia, 24% were born out of state, 5% were born outside of the United States and 14% were foreign born.