York, SC has a population of 7,989 and is the 4,683rd largest city in the United States. The population density is 973 per sq mi which is 560% higher than the South Carolina average and 974% higher than the national average. The median age in York is 35 which is approximately 10% lower than the South Carolina average of 39. In York, 48% of the population over 15 years of age are married, 90% speak English and 9% speak Spanish. 55% of York residents were born in South Carolina, 37% were born out of state, 1% were born outside of the United States and 7% were foreign born.