ZIP Codes in Allen, TX
Allen uses 2 ZIP codes, all in Collin County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 2 Allen ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 75002 | standard | Collin | 75,057 |
| 75013 | standard | Collin | 49,796 |
Finding a ZIP+4 in Allen
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 Allen street almost always have different ZIP+4 codes even though they share all five leading digits.
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