Mars Hill, NC has a population of 2,620 and is the 9,558th largest city in the United States. The population density is 1,317 per sq mi which is 627% higher than the North Carolina average and 1354% higher than the national average. The median age in Mars Hill is 24 which is approximately 38% lower than the North Carolina average of 38. In Mars Hill, 35% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 61% of Mars Hill residents were born in North Carolina, 38% were born out of state, 0% were born outside of the United States and 1% were foreign born.