ZIP Codes in Seneca, SC
Seneca uses 2 ZIP codes, all in Oconee County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 2 Seneca ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 29672 | standard | Oconee | 12,750 |
| 29678 | standard | Oconee | 23,767 |
Finding a ZIP+4 in Seneca
Knowing which of these 2 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same Seneca street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
Upload a CSV of Seneca addresses and download it complete.