100 Smallest ZIP Codes in the United States by Population in Barnwell County, South Carolina
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Barnwell County, South Carolina.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 29826 | ELKO | SC | 219 |
| 2 | 29817 | BLACKVILLE | SC | 4,392 |
| 3 | 29853 | WILLISTON | SC | 6,205 |
| 4 | 29812 | BARNWELL | SC | 10,773 |