Allendale County, South Carolina ZIP codes
6 ZIP codes are in Allendale County, plus 1 that cross in from neighboring counties.
- ZIP codes
- 6
- Population in these ZIPs
- 8,090
- Avg. median income
- $35,500population-weighted
- Cities & towns
- 6
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ZIP codes in Allendale County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 29810 | Allendale | 3,775 | $26,835 | $66,300 |
| 29827 | Fairfax | 3,396 | $40,844 | $92,000 |
| 29836 | Martin | 326 | — | $108,200 |
| 29846 PO Box | Sycamore | — | — | — |
| 29849 | Ulmer | 271 | $89,583 | $161,100 |
| 29932 | Luray | 322 | — | $153,900 |
ZIP codes partly in Allendale County
These ZIP codes are mostly in a neighboring county but cover part of Allendale County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 29812 | Barnwell | Barnwell County | 11,132 | $51,870 | $180,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Allendale County
Nearby counties
Frequently asked questions
How many ZIP codes are in Allendale County, South Carolina?
6 ZIP codes are mainly in Allendale County, and 1 more ZIP codes from neighboring areas reach partly into it.
What cities are in Allendale County?
ZIP codes in Allendale County use the city names Allendale, Fairfax, Luray, Martin, Sycamore and Ulmer.