ZIP Codes in Arlington, MA
Arlington uses 2 ZIP codes, all in Middlesex County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 2 Arlington ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 02474 | standard | Middlesex | 28,642 |
| 02476 | standard | Middlesex | 17,708 |
Finding a ZIP+4 in Arlington
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 Arlington 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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