ZIP Code Tabulation Area · Indiana

ZIP Code 46321: Munster, IN

ZIP Code 46321 (Munster, Lake County, Indiana) has an estimated 23,733 residents in 9,471 households. The median household income is $110,187, the median home value is $334,300 and the median gross rent is $1,507/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

23,733

Margin of error ±62

Median household income

$110,187

Margin of error ±$11,660

Median home value

$334,300

Margin of error ±$11,282

Median gross rent

$1,507/mo

Margin of error ±$365

Median age

45.0 yrs

Margin of error ±1.6 yrs

Mean travel time to work

28.1 min

Margin of error ±2.9 min

How ZIP 46321 compares with Indiana and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 4632145.0 yrsIndiana38.1 yrsUnited States38.9 yrs

Median household income

ZIP 46321$110,187Indiana$71,957United States$80,734

Per capita income

ZIP 46321$57,382Indiana$38,351United States$44,673

Poverty rate

ZIP 463216.0%Indiana12.3%United States12.5%

Unemployment rate

ZIP 463215.5%Indiana4.3%United States5.2%

Bachelor's degree or higher

ZIP 4632149.9%Indiana29.5%United States35.7%

Median home value

ZIP 46321$334,300Indiana$218,200United States$332,700

Median gross rent

ZIP 46321$1,507/moIndiana$1,062/moUnited States$1,413/mo

Owner-occupied homes

ZIP 4632187.0%Indiana70.6%United States65.2%

Mean travel time to work

ZIP 4632128.1 minIndiana24.1 minUnited States26.4 min

Worked from home

ZIP 4632113.0%Indiana10.7%United States15.1%

All figures for ZIP 46321

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 46321 — ACS 2020–2024 5-year estimates
MeasureZIP 46321Margin of errorIndianaUnited States
Total population23,733±626,851,073334,922,499
Median age45.0 yrs±1.6 yrs38.1 yrs38.9 yrs
Households9,471±3472,716,009129,227,496
Median household income$110,187±$11,660$71,957$80,734
Per capita income$57,382±$4,989$38,351$44,673
Poverty rate6.0%±1.9 pts12.3%12.5%
Unemployment rate5.5%±1.8 pts4.3%5.2%
Bachelor's degree or higher49.9%±3.3 pts29.5%35.7%
Median home value$334,300±$11,282$218,200$332,700
Median gross rent$1,507/mo±$365$1,062/mo$1,413/mo
Owner-occupied homes87.0%±3.2 pts70.6%65.2%
Mean travel time to work28.1 min±2.9 min24.1 min26.4 min
Worked from home13.0%±2.8 pts10.7%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 46321
GroupZIP 46321IndianaUnited States
White alone, not Hispanic or Latino69.6%75.4%57.4%
Black or African American alone, not Hispanic or Latino7.4%9.1%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.2%0.1%0.5%
Asian alone, not Hispanic or Latino6.3%2.6%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.1%0.4%0.6%
Two or more races, not Hispanic or Latino1.9%3.8%4.3%
Hispanic or Latino (of any race)14.5%8.6%19.3%

Where ZIP 46321 is

State
Indiana
Main county
Lake County
Largest overlapping place
Munster (99% of the ZIP's land area)
Land area
7.59 sq mi· about 3,127 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Lake County

46303 Cedar Lake, IN46307 Crown Point, IN46311 Dyer, IN46312 East Chicago, IN46319 Griffith, IN46320 Hammond, IN46322 Highland, IN46323 Hammond, IN46324 Hammond, IN46327 Hammond, IN46342 Hobart, IN46356 Lake County, IN46373 St. John, IN46375 Schererville, IN46376 Lake County, IN46377 Shelby, IN46394 Hammond, IN46402 Gary, IN46403 Gary, IN46404 Gary, IN46405 Lake Station, IN46406 Gary, IN46407 Gary, IN46408 Gary, IN

See every ZIP code in Indiana, or compare ZIP 46321 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.