ZIP Code 46321
standardSource:
Munster · Lake County · Indiana
- Population
- 23,603
- Median income
- $110,187
- Median home value
- $334,300
- Bachelor's or higher
- 49.9%
- Land area
- 19.6 sq mi
1,204/sq mi
▲ 44% vs US
higher than 87% of US ZIPs
▲ 20% vs US
higher than 71% of US ZIPs
Median age 45
Chicago
ZIP code 46321 in Munster, Indiana has a population of 23,603. The median household income is $110,187, which is 44% above the national average. Median home value is $334,300, 20% above the US average. 49.9% of residents hold a bachelor's degree or higher.
ZIP code 46321 is classified by USPS as a standard delivery area and covers roughly 19.6 square miles in Munster, Lake County, Indiana. The area is home to 23,603 residents, producing a population density of 1,204 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 46321 against Indiana and the nation.
On the economic side, the median household income for ZIP 46321 sits at $110,187 (50% above the Indiana average), while per-capita income is $57,382. The poverty rate stands at 6.0% and the unemployment rate at 5.5%. On housing, the median home value is $334,300 (73% above the state average) with median rent at $1,507 per month, and 87.0% of occupied units are owner-occupied, a direct signal of whether 46321 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 49.9% of adults hold a bachelor's degree or higher, the median age is 45, and the average commute is 28 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Lake County, so you can benchmark 46321 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 46321
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 46321.
- Health care and social assistance
Health care and social assistance
207 establishments
- Accommodation and food services 76
Accommodation and food services
76 establishments
- Professional, scientific, and technical services 73
Professional, scientific, and technical services
73 establishments
- Other services (except public administration) 64
Other services (except public administration)
64 establishments
- Retail trade 54
Retail trade
54 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 46321, Munster, IN · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
23,603
Population
19.6
Area (sq mi)
1,204
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 46321?
45.0
Median Age
49.5%
Male
50.5%
Female
8.6%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$110,187
Median Household Income
+50% vs state
$57,382
Per Capita Income
6.0%
Poverty Rate
5.5%
Unemployment Rate
28.1 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
9,814
Total Housing Units
9,471
Occupied Units
343
Vacant Units
2.47
Avg Household Size
Occupancy Type
$334,300
Median Home Value
+73% vs state
$1,507
Median Rent
1973
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+1.2%
YoY Change (2024)
203
HPI Index (2000 = 100)
+103%
Total Change Since 2000
Home values in ZIP 46321 have increased 1.2% over the past year (2024). Since 2000, this ZIP has seen +103% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +3.5% | 150 |
| 2021 | +11.8% | 168 |
| 2022 | +10.0% | 185 |
| 2023 | +8.7% | 201 |
| 2024 | +1.2% | 203 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 689 business establishments in ZIP 46321, employing approximately 15,460 people with a combined annual payroll of $972,574,000.
689
Businesses
15,460
Employees
$972.6M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 207 | 30.0% |
| Accommodation and food services | 76 | 11.0% |
| Professional, scientific, and technical services | 73 | 10.6% |
| Other services (except public administration) | 64 | 9.3% |
| Retail trade | 54 | 7.8% |
| Finance and insurance | 44 | 6.4% |
| Construction | 36 | 5.2% |
| Transportation and warehousing | 30 | 4.3% |
| Administrative and support and waste management and remediation services | 26 | 3.8% |
| Real estate and rental and leasing | 20 | 2.9% |
| Wholesale trade | 18 | 2.6% |
| Manufacturing | 11 | 1.6% |
| Educational services | 10 | 1.4% |
| Arts, entertainment, and recreation | 10 | 1.4% |
| Information | 6 | 0.9% |
| Management of companies and enterprises | 4 | 0.6% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 46321 vs 46324 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 46324 | Hammond, IN | 23,165 | 2.5 mi |
| 46322 | Highland, IN | 23,727 | 2.3 mi |
| 60438 | Lansing, IL | 28,884 | 2.8 mi |
| 46311 | Dyer, IN | 20,816 | 5.6 mi |
| 46320 | Hammond, IN | 15,508 | 6.0 mi |
| 46323 | Hammond, IN | 22,743 | 4.0 mi |
| 46327 | Hammond, IN | 12,153 | 6.3 mi |
| 46319 | Griffith, IN | 18,404 | 4.5 mi |
| 60425 | Glenwood, IL | 9,117 | 5.6 mi |
| 46375 | Schererville, IN | 23,820 | 4.8 mi |
More ZIP Codes in Lake County
Related Areas
Frequently Asked Questions
What county is ZIP code 46321 in? ▼
What is the population of ZIP code 46321? ▼
What is the median household income in ZIP 46321? ▼
What is the average home value in ZIP 46321? ▼
What is the demographic makeup of ZIP 46321? ▼
How many businesses are in ZIP code 46321? ▼
What are the main industries in ZIP code 46321? ▼
How have home values changed in ZIP code 46321? ▼
What is the education level in ZIP code 46321? ▼
What is the average commute time in ZIP 46321? ▼
What percentage of residents own vs. rent in ZIP 46321? ▼
What is the poverty rate in ZIP code 46321? ▼
ZIP Code Research Guides
Official Data Resources for Munster, IN
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.