ZIP Codes in Hagerstown, MD
Hagerstown uses 3 ZIP codes, all in Washington County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 3 Hagerstown ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 21740 | standard | Washington | 64,792 |
| 21742 | standard | Washington | 34,069 |
| 21746 | standard | Washington | 2,361 |
Finding a ZIP+4 in Hagerstown
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 Hagerstown street almost always have different ZIP+4 codes even though they share all five leading digits.
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