Troy, NC has a population of 3,430 and is the 8,149th largest city in the United States. The population density is 955 per sq mi which is 428% higher than the North Carolina average and 955% higher than the national average. The median age in Troy is 35 which is approximately 10% lower than the North Carolina average of 38. In Troy, 46% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 79% of Troy residents were born in North Carolina, 20% were born out of state, 0% were born outside of the United States and 2% were foreign born.