Newington, VA has a population of 13,583 and is the 3,077th largest city in the United States. The population density is 2,964 per sq mi which is 1449% higher than the Virginia average and 3171% higher than the national average. The median age in Newington is 37 which is approximately 2% lower than the Virginia average of 38. In Newington, 61% of the population over 15 years of age are married, 63% speak English and 12% speak Spanish. 28% of Newington residents were born in Virginia, 41% were born out of state, 3% were born outside of the United States and 27% were foreign born.