Cowpens, SC has a population of 1,772 and is the 11,728th largest city in the United States. The population density is 752 per sq mi which is 409% higher than the South Carolina average and 730% higher than the national average. The median age in Cowpens is 44 which is approximately 12% higher than the South Carolina average of 39. In Cowpens, 57% of the population over 15 years of age are married, 93% speak English and 4% speak Spanish. 75% of Cowpens residents were born in South Carolina, 19% were born out of state, 0% were born outside of the United States and 5% were foreign born.