Cottageville, SC has a population of 851 and is the 16,175th largest city in the United States. The population density is 249 per sq mi which is 69% higher than the South Carolina average and 175% higher than the national average. The median age in Cottageville is 40 which is approximately 3% higher than the South Carolina average of 39. In Cottageville, 61% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 68% of Cottageville residents were born in South Carolina, 30% were born out of state, 0% were born outside of the United States and 2% were foreign born.