463
- 46301 Beverly Shores
- 46303 Cedar Lake
- 46304 Chesterton
- 46307 Crown Point
- 46310 Demotte
- 46311 Dyer
- 46312 East Chicago
- 46319 Griffith
- 46320 Hammond
- 46321 Munster
- 46322 Highland
- 46323 Hammond
- 46324 Hammond
- 46327 Hammond
- 46340 Hanna
- 46341 Hebron
- 46342 Hobart
- 46345 Kingsbury
- 46346 Kingsford Heights
- 46347 Kouts
- 46348 La Crosse
- 46349 Lake Village
- 46350 La Porte
- 46356 Lowell
- 46360 Michigan City
- 46365 Mill Creek
- 46366 North Judson
- 46368 Portage
- 46371 Rolling Prairie
- 46373 Saint John
- 46374 San Pierre
- 46375 Schererville
- 46376 Schneider
- 46377 Shelby
- 46379 Sumava Resorts
- 46381 Thayer
- 46382 Union Mills
- 46383 Valparaiso
- 46385 Valparaiso
- 46390 Wanatah
- 46391 Westville
- 46392 Wheatfield
- 46393
- 46394 Whiting