ZIP Codes in Georgetown, TX
Georgetown uses 3 ZIP codes, all in Williamson County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 3 Georgetown ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 78626 | standard | Williamson | 48,072 |
| 78628 | standard | Williamson | 50,822 |
| 78633 | standard | Williamson | 29,309 |
Finding a ZIP+4 in Georgetown
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 Georgetown street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
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