ZIP Codes in Marshall, TX
Marshall uses 3 ZIP codes, all in Harrison County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 3 Marshall ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 75670 | standard | Harrison | 18,670 |
| 75671 | standard | Harrison | — |
| 75672 | standard | Harrison | 16,509 |
Finding a ZIP+4 in Marshall
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 Marshall 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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