Marvin, NC has a population of 6,056 and is the 5,729th largest city in the United States. The population density is 1,014 per sq mi which is 460% higher than the North Carolina average and 1019% higher than the national average. The median age in Marvin is 39 which is approximately 2% higher than the North Carolina average of 38. In Marvin, 80% of the population over 15 years of age are married, 85% speak English and 6% speak Spanish. 29% of Marvin residents were born in North Carolina, 55% were born out of state, 1% were born outside of the United States and 14% were foreign born.