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Lake County, Indiana ZIP Codes

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ZIP Codes in Lake County with Associated Cities & Towns

Lake County, IN - Standard ZIP Codes
46303 | 46307 | 46311 | 46312 | 46319 | 46320 | 46321 | 46322 | 46323 | 46324 | 46327 | 46341 | 46342 | 46356 | 46368 | 46373 | 46375 | 46394 | 46402 | 46403 | 46404 | 46405 | 46406 | 46407 | 46408 | 46409 | 46410
Lake County, IN - PO Box ZIP Codes (NO DEMOGRAPHIC DATA)
46308 | 46325 | 46355 | 46376 | 46377 | 46401 | 46411
Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.

ZIP Codes in Lake County Address Data

  • Businesses Addresses: 16,004
  • PO Box Addresses: 4,950
  • Residential Addresses: 225,065
    • Multi-Family Addresses: 23,959
    • Single Family Addresses: 200,088

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Map of Lake County, IN ZIP Codes With Actual (Default) City Names

Cedar Lake
Crown Point
Dyer
East Chicago
Gary
Griffith
Hammond
Highland
Hobart
Lake Station
Leroy
Lowell
Merrillville
Munster
Saint John
Schererville
Schneider
Shelby
Whiting


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