List of All ZIP Codes in Lake County Census Division | ||||
|---|---|---|---|---|
| Map Index | ZIP Code Code | ZIP Code Name | ||
| 46303 | Cedar Lake | |||
| 46307 | Crown Point | |||
| 46311 | Dyer | |||
| 46312 | East Chicago | |||
| 46319 | Griffith | |||
| 46320 | Hammond | |||
| 46321 | Munster | |||
| 46322 | Highland | |||
| 46323 | Hammond | |||
| 46324 | Hammond | |||
| 46327 | Hammond | |||
| 46342 | Hobart | |||
| 46356 | Lowell | |||
| 46373 | Saint John | |||
| 46375 | Schererville | |||
| 46376 | Schneider | |||
| 46377 | Shelby | |||
| 46394 | Whiting | |||
| 46401 | Gary | |||
| 46402 | Gary | |||
| 46403 | Gary | |||
| 46404 | Gary | |||
| 46405 | Lake Station | |||
| 46406 | Gary | |||
| 46407 | Gary | |||
| 46408 | Gary | |||
| 46409 | Gary | |||
| 46410 | Merrillville | |||