Downsville, MD has a population of 360 and is the 21,444th largest city in the United States. The population density is 576 per sq mi which is 21% higher than the Maryland average and 536% higher than the national average. The median age in Downsville is 50 which is approximately 31% higher than the Maryland average of 38. In Downsville, 70% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 92% of Downsville residents were born in Maryland, 8% were born out of state, 0% were born outside of the United States and 0% were foreign born.