Langley, SC has a population of 1,171 and is the 14,173rd largest city in the United States. The population density is 1,020 per sq mi which is 591% higher than the South Carolina average and 1025% higher than the national average. The median age in Langley is 44 which is approximately 12% higher than the South Carolina average of 39. In Langley, 47% of the population over 15 years of age are married, 95% speak English and 3% speak Spanish. 46% of Langley residents were born in South Carolina, 52% were born out of state, 2% were born outside of the United States and 0% were foreign born.