Potomac Heights, MD has a population of 1,191 and is the 14,074th largest city in the United States. The population density is 1,110 per sq mi which is 134% higher than the Maryland average and 1125% higher than the national average. The median age in Potomac Heights is 43 which is approximately 13% higher than the Maryland average of 38. In Potomac Heights, 48% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 63% of Potomac Heights residents were born in Maryland, 36% were born out of state, 1% were born outside of the United States and 1% were foreign born.