ZIP codes in Marlboro County
8 ZIPs touch Marlboro County, South Carolina. The blue dashed line is the county border; orange ZIPs reach into it.
8
ZIP codes
3
cross the county line
46,190
people in these ZIPs
46
counties in SC
Most people
Marlboro County ZIP list
More counties in South Carolina
- Kershaw County14
- Lancaster County7
- Laurens County16
- Lee County12
- Lexington County21
- Marion County8
- McCormick County11
- Newberry County11
- Oconee County15
- Orangeburg County25
- Pickens County18
- Richland County47
Questions people actually ask
How many ZIP codes are in Marlboro County, South Carolina?
8 ZIP codes reach into Marlboro County. 3 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Marlboro County has the most people?
29512 (Bennettsville) has about 17,197 residents, the most of any ZIP touching Marlboro County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Marlboro County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Marlboro County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from