ZIP Codes in Fort Mill, SC
Fort Mill uses 3 ZIP codes, all in Lancaster, York Counties. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 3 Fort Mill ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 29707 | standard | Lancaster | 37,629 |
| 29708 | standard | York | 43,515 |
| 29715 | standard | York | 46,865 |
Finding a ZIP+4 in Fort Mill
Knowing which of these 3 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 Fort Mill street almost always have different ZIP+4 codes even though they share all five leading digits.
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