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- Map of Ross Township (Lake County), Indiana ZIP Codes
Map of ZIP Codes in Ross Township (Lake County), Indiana
List of ZIP Codes in Ross Township (Lake County), Indiana |
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| ZIP Code | ZIP Code City Name | Population | ZIP Code Type |
| Crown Point | 60619 | Non-Unique |
| Griffith | 18404 | Non-Unique |
| Hobart | 31244 | Non-Unique |
| Schererville | 23820 | Non-Unique |
| Valparaiso | 38866 | Non-Unique |
| Merrillville | 38340 | Non-Unique |
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