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About Duncan, South Carolina

Duncan is a town in Spartanburg County, South Carolina, United States. The population was 3,181 at the 2010 census.

News from Duncan

Duncan Facts

  • Population Total: 3181
  • Square Miles: 3.5
  • Area Code: 864
  • Elevation: 866
  • Postal Codes: 29334, 29390, 29391
  • Timezone: North American Eastern