| Primary City | Saint John | |
| Population | 14,850 | |
| State | Indiana | |
| County | Lake County | |
| Current Time | ||
| Zip Codes | 46373 | |
| Area Codes | 219, 219 |
Neighbouring Zip Codes
ZIP Code: 46356
Lowell, Indiana
ZIP Code: 46303
Cedar Lake, Indiana
ZIP Code: 46308
Crown Point, Indiana
ZIP Code: 46307
Crown Point, Indiana
ZIP Code: 46373
Saint John, Indiana
ZIP Code: 46311
Dyer, Indiana
ZIP Code: 46312
East Chicago, Indiana
ZIP Code: 46411
Merrillville, Indiana
ZIP Code: 46410
Merrillville, Indiana
ZIP Code: 46409
Gary, Indiana
ZIP Code: 46408
Gary, Indiana
ZIP Code: 46405
Lake Station, Indiana
ZIP Code: 46319
Griffith, Indiana
ZIP Code: 46327
Hammond, Indiana
ZIP Code: 46325
Hammond, Indiana
ZIP Code: 46322
Highland, Indiana
ZIP Code: 46321
Munster, Indiana
ZIP Code: 47854
Hillsdale, Indiana
ZIP Code: 46322
Highland, Indiana
ZIP Code: 46342
Hobart, Indiana
ZIP Code: 46405
Lake Station, Indiana
ZIP Code: 46321
Munster, Indiana
ZIP Code: 46368
Portage, Indiana
ZIP Code: 46375
Schererville, Indiana
Neighbouring Cities
Dyer, Griffith, Cedar Lake, Crown Point, Highland, Merrillville, Munster, Hammond, Lowell, Gary, Hobart, East Chicago, Lakes of the Four Seasons, Lake Station, Portage