ZIP Codes in Johnstown, PA
Johnstown uses 6 ZIP codes, all in Cambria County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 6 Johnstown ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 15901 | standard | Cambria | 3,397 |
| 15902 | standard | Cambria | 11,462 |
| 15904 | standard | Cambria | 16,026 |
| 15905 | standard | Cambria | 19,329 |
| 15906 | standard | Cambria | 9,504 |
| 15909 | standard | Cambria | 4,571 |
Finding a ZIP+4 in Johnstown
Knowing which of these 6 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 Johnstown street almost always have different ZIP+4 codes even though they share all five leading digits.
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