Welcome, SC has a population of 6,629 and is the 5,374th largest city in the United States. The population density is 1,430 per sq mi which is 869% higher than the South Carolina average and 1478% higher than the national average. The median age in Welcome is 40 which is approximately 2% higher than the South Carolina average of 39. In Welcome, 50% of the population over 15 years of age are married, 79% speak English and 20% speak Spanish. 64% of Welcome residents were born in South Carolina, 21% were born out of state, 1% were born outside of the United States and 13% were foreign born.