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/HAMMOND

Hammond ZIP codes, Indiana

Hammond, IN has 5 ZIP codes (46323, 46324, 46320, 46327 and 46325) and area code 219. The largest is 46323.

USPS city name
5 ZIP codes
Overlapping the city
2 more
Population
76,768
Area code
219
State
Indiana

Mail addressed to Hammond uses the ZIP codes above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Hammond in numbers

About 76,768 people live in Hammond, in 29,797 households, the 8th-largest of Indiana's 794 census places. The median household income is $55,504 a year, 23% below the Indiana median of $71,957 (US: $80,734). The median owner-occupied home is valued at $159,900 (27% below the Indiana median), and median gross rent is $1,134 a month. The median age is 36.0; 17.4% of adults 25 and over hold a bachelor's degree or higher (29.5% across Indiana); the average commute takes 26 minutes.

Population76,768Hammond76,768
Households29,797Hammond29,797
Median age36.0Hammond36.0Indiana38.1US 38.9
Median household income$55,504Hammond$55,504Indiana$71,957US $80,734
Median home value$159,900Hammond$159,900Indiana$218,200US $332,700
Median gross rent$1,134Hammond$1,134Indiana$1,062US $1,413
Bachelor's degree or higher17.4%Hammond17.4%Indiana29.5%US 35.7%
Mean commute25.7 minHammond25.7 minIndiana24.1 minUS 26.4 min
Population density3,376 / sq miHammond3,376 / sq mi

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

ZIP codes addressed as Hammond

ZIP codes with the USPS city name Hammond
ZIP City Type Population Median income Median home
46323 Hammond , IN Standard 23,047 $59,688 $166,400
46324 Hammond , IN Standard 21,409 $63,052 $158,800
46320 Hammond , IN Standard 14,353 $37,158 $135,000
46327 Hammond , IN Standard 10,597 $47,288 $142,100
46325 Hammond , IN No street area — — —

Other ZIP codes overlapping Hammond

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

ZIP codes overlapping Hammond
ZIP City Type Population Median income Median home
46321 Munster , IN Standard 23,733 $110,187 $334,300
46394 Whiting , IN Standard 11,894 $66,176 $173,200

Map of Hammond ZIP codes

4632346324463204632746325

The ZIP codes of Hammond, 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 Hammond

The nearest larger towns are Chicago, IL (2,711,226 people, 18 mi), Cicero, IL (82,797 people, 21 mi) and Joliet, IL (150,445 people, 34 mi).

Towns near Hammond
TownPopulationDistance
Calumet City, IL 35,100 2.7 mi
Burnham, IL 3,937 3.0 mi
East Chicago 26,022 3.0 mi
Whiting 4,532 3.8 mi
Lansing, IL 28,284 4.6 mi
Munster 23,733 5.0 mi
Dolton, IL 20,825 5.3 mi
Highland 23,680 5.3 mi
South Holland, IL 20,911 5.7 mi
Lynwood, IL 9,083 7.2 mi
Griffith 16,273 7.3 mi
Riverdale, IL 10,340 7.5 mi
Gary 68,113 7.9 mi
Glenwood, IL 8,603 8.1 mi

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

Cite this page

zipcodes.pro. “Hammond, IN ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/in/hammond

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