Springdale CDP, SC has a population of 2,355 and is the 10,140th largest city in the United States. The population density is 557 per sq mi which is 278% higher than the South Carolina average and 515% higher than the national average. The median age in Springdale CDP is 36 which is approximately 8% lower than the South Carolina average of 39. In Springdale CDP, 57% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 81% of Springdale CDP residents were born in South Carolina, 19% were born out of state, 0% were born outside of the United States and 0% were foreign born.