Leesburg, VA has a population of 49,401 and is the 832nd largest city in the United States. The population density is 3,985 per sq mi which is 1983% higher than the Virginia average and 4299% higher than the national average. The median age in Leesburg is 35 which is approximately 8% lower than the Virginia average of 38. In Leesburg, 60% of the population over 15 years of age are married, 73% speak English and 13% speak Spanish. 34% of Leesburg residents were born in Virginia, 41% were born out of state, 3% were born outside of the United States and 22% were foreign born.