Lake County, Indiana — ZIP directory
25 ZIP codes in Lake County. Pick a ZIP for services, power context, permits, and FAQs written for homeowners.
- Cedar Lake 46303 — Cedar Lake
- Crown Point 46307 — Crown Point
- Dyer 46311 — Dyer
- East Chicago 46312 — East Chicago
- Griffith 46319 — Griffith
- Hammond 46320 — Hammond
- Munster 46321 — Munster
- Highland 46322 — Highland
- Hammond 46323 — Hammond
- Hammond 46324 — Hammond
- Hammond 46327 — Hammond
- Hobart 46342 — Hobart
- Lowell 46356 — Lowell
- Saint John 46373 — Saint John
- Schererville 46375 — Schererville
- Whiting 46394 — Whiting
- Gary 46402 — Gary
- Gary 46403 — Gary
- Gary 46404 — Gary
- Lake Station 46405 — Lake Station
- Gary 46406 — Gary
- Gary 46407 — Gary
- Gary 46408 — Gary
- Gary 46409 — Gary
- Merrillville 46410 — Merrillville