ZIP Codes in Gary, IN
Gary uses 7 ZIP codes, all in Lake County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 7 Gary ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 46402 | standard | Lake | 5,836 |
| 46403 | standard | Lake | 10,929 |
| 46404 | standard | Lake | 15,428 |
| 46406 | standard | Lake | 9,001 |
| 46407 | standard | Lake | 8,577 |
| 46408 | standard | Lake | 15,747 |
| 46409 | standard | Lake | 7,184 |
Finding a ZIP+4 in Gary
Knowing which of these 7 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 Gary street almost always have different ZIP+4 codes even though they share all five leading digits.
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