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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

LAKE County, IN ZIP Codes

LAKE County, IN Covers 32 ZIP Codes

ZIP CodeClassificationCityPopulationTimezoneArea Code(s)
ZIP Code 46303GeneralCedar Lake14,170Central219
ZIP Code 46307GeneralCrown Point60,619Central219
ZIP Code 46308P.O. BoxCrown Point0Central219
ZIP Code 46311GeneralDyer20,816Central219
ZIP Code 46312GeneralEast Chicago29,698Central219
ZIP Code 46319GeneralGriffith18,404Central219
ZIP Code 46320GeneralHammond15,508Central219
ZIP Code 46321GeneralMunster23,603Central219
ZIP Code 46322GeneralHighland23,727Central219
ZIP Code 46323GeneralHammond22,743Central219
ZIP Code 46324GeneralHammond23,165Central219
ZIP Code 46325P.O. BoxHammond0Central219
ZIP Code 46327GeneralHammond12,153Central219
ZIP Code 46342GeneralHobart31,244Central219
ZIP Code 46355P.O. BoxLeroy0Central219
ZIP Code 46356GeneralLowell17,524Central219
ZIP Code 46373GeneralSaint John13,859Central219
ZIP Code 46375GeneralSchererville23,820Central219
ZIP Code 46376P.O. BoxSchneider398Central219
ZIP Code 46377P.O. BoxShelby386Central219
ZIP Code 46394GeneralWhiting12,258Central219
ZIP Code 46401P.O. BoxGary0Central219
ZIP Code 46402GeneralGary6,726Central219
ZIP Code 46403GeneralGary12,601Central219
ZIP Code 46404GeneralGary17,326Central219
ZIP Code 46405GeneralLake Station11,746Central219
ZIP Code 46406GeneralGary9,900Central219
ZIP Code 46407GeneralGary12,656Central219
ZIP Code 46408GeneralGary17,030Central219
ZIP Code 46409GeneralGary8,932Central219
ZIP Code 46410GeneralMerrillville38,340Central219
ZIP Code 46411P.O. BoxMerrillville0Central219

Population:496,005 (More Details)
Male Population:239,383
Female Population:256,622
Median Age:37
ZIP Codes:32
Area Codes:0
Total Area:627 square miles (county)
Land Area:499 square miles (county)
Water Area:128 square miles (county)

LAKE, IN Demographic Information

* Demographic data is based on 2010 Census.

Total population of LAKE County, IN496,005
Male population of LAKE County, IN239,383
Female population of LAKE County, IN256,622
Median age (years)37.4
White Population319,412
Black Population128,263
Indian Population1,628
Asian Population6,142
Hawaiian Population108
Hispanic Population82,663
Median age (Male)35.9
Median age (Female)38.8
Total households188,157
Family households (families)127,647
Average household size for LAKE County, IN2.6
Average family size of LAKE County, IN3.19
Total housing units for LAKE County, IN208,750

LAKE County, IN Covers 19 Cities