Lake Ridge, VA has a population of 44,685 and is the 914th largest city in the United States. The population density is 4,786 per sq mi which is 2401% higher than the Virginia average and 5183% higher than the national average. The median age in Lake Ridge is 35 which is approximately 7% lower than the Virginia average of 38. In Lake Ridge, 59% of the population over 15 years of age are married, 71% speak English and 15% speak Spanish. 33% of Lake Ridge residents were born in Virginia, 42% were born out of state, 3% were born outside of the United States and 22% were foreign born.