Oxford, MD has a population of 583 and is the 18,604th largest city in the United States. The population density is 1,083 per sq mi which is 128% higher than the Maryland average and 1095% higher than the national average. The median age in Oxford is 61 which is approximately 59% higher than the Maryland average of 38. In Oxford, 76% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 44% of Oxford residents were born in Maryland, 54% were born out of state, 1% were born outside of the United States and 2% were foreign born.