Mount Carmel, SC has a population of 240 and is the 23,629th largest city in the United States. The population density is 26 per sq mi which is 82% lower than the South Carolina average and 71% lower than the national average. The median age in Mount Carmel is 48 which is approximately 22% higher than the South Carolina average of 39. In Mount Carmel, 52% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 88% of Mount Carmel residents were born in South Carolina, 12% were born out of state, 0% were born outside of the United States and 0% were foreign born.