Lake County, Indiana ZIP Codes
- ZIP codes
- 27
- Cities
- 18
- State
- Indiana (IN)
- County FIPS
- 18089
Cities in Lake County
ZIP codes in Lake County
- 46303Cedar Lake
- 46307Crown Point
- 46311Dyer
- 46312East Chicago
- 46319Griffith
- 46320Hammond
- 46321Munster
- 46322Highland
- 46323Hammond
- 46324Hammond
- 46327Hammond
- 46342Hobart
- 46356Lowell
- 46373Saint John
- 46375Schererville
- 46376Schneider
- 46377Shelby
- 46394Whiting
- 46402Gary
- 46403Gary
- 46404Gary
- 46405Lake Station
- 46406Gary
- 46407Gary
- 46408Gary
- 46409Gary
- 46410Merrillville