Belvedere, SC has a population of 5,714 and is the 5,934th largest city in the United States. The population density is 1,657 per sq mi which is 1023% higher than the South Carolina average and 1729% higher than the national average. The median age in Belvedere is 39 which is approximately equal to the South Carolina average of 39. In Belvedere, 56% of the population over 15 years of age are married, 92% speak English and 7% speak Spanish. 28% of Belvedere residents were born in South Carolina, 63% were born out of state, 3% were born outside of the United States and 6% were foreign born.