Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/IN/EAST-CHICAGO

East Chicago ZIP code, Indiana

The ZIP code for East Chicago, IN is 46312, and its area code is 219.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
26,022
Area code
219
State
Indiana

Mail addressed to East Chicago uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

East Chicago in numbers

About 26,022 people live in East Chicago, in 9,943 households, the 40th-largest of Indiana's 794 census places. The median household income is $42,125 a year, 41% below the Indiana median of $71,957 (US: $80,734). The median owner-occupied home is valued at $105,400 (52% below the Indiana median), and median gross rent is $854 a month. The median age is 36.5; 10.7% of adults 25 and over hold a bachelor's degree or higher (29.5% across Indiana); the average commute takes 21 minutes.

Population26,022East Chicago26,022
Households9,943East Chicago9,943
Median age36.5East Chicago36.5Indiana38.1US 38.9
Median household income$42,125East Chicago$42,125Indiana$71,957US $80,734
Median home value$105,400East Chicago$105,400Indiana$218,200US $332,700
Median gross rent$854East Chicago$854Indiana$1,062US $1,413
Bachelor's degree or higher10.7%East Chicago10.7%Indiana29.5%US 35.7%
Mean commute20.8 minEast Chicago20.8 minIndiana24.1 minUS 26.4 min
Population density1,844 / sq miEast Chicago1,844 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place East Chicago city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as East Chicago

ZIP codes with the USPS city name East Chicago
ZIP City Type Population Median income Median home
46312 East Chicago , IN Standard 26,022 $42,125 $105,400

Other ZIP codes overlapping East Chicago

These ZIP codes cover part of East Chicago but are addressed as somewhere else.

ZIP codes overlapping East Chicago
ZIP City Type Population Median income Median home
46320 Hammond , IN Standard 14,353 $37,158 $135,000

Map of East Chicago ZIP codes

46312

The ZIP codes of East Chicago, IN, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near East Chicago

The nearest larger towns are Hammond (76,768 people, 3.0 mi), Calumet City, IL (35,100 people, 5.7 mi) and Gary (68,113 people, 6.8 mi).

Towns near East Chicago
TownPopulationDistance
Whiting 4,532 2.4 mi
Hammond 76,768 3.0 mi
Burnham, IL 3,937 4.8 mi
Calumet City, IL 35,100 5.7 mi
Gary 68,113 6.8 mi
Highland 23,680 7.0 mi
Munster 23,733 7.5 mi
Lansing, IL 28,284 7.5 mi
Dolton, IL 20,825 7.5 mi
Griffith 16,273 8.5 mi
South Holland, IL 20,911 8.5 mi
Riverdale, IL 10,340 9.4 mi
Lynwood, IL 9,083 10.0 mi
Calumet Park, IL 6,855 10.6 mi

More nearby: every ZIP code in Lake County · Indiana ZIP codes

Cite this page

zipcodes.pro. “East Chicago, IN ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/in/east-chicago

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