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Indiana ZIP Codes
Lake County
Gary, IN
46403
46403 ZIP Code — Gary, IN
Lake County, Indiana
ZIP code 46403 is located in
Gary ,
Indiana ,
within Lake County .
It covers approximately 9.26 square miles and serves a population of
10,875 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 219 .
About ZIP code 46403
The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $150,500. Owner-occupancy sits near the national average at 49%.
Median household income is $44,315. Poverty affects 25% of residents, above the national average. 37% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.
Educational attainment is near the national average, with 25% of residents holding a bachelor's degree or higher.
Health indicators show elevated rates of obesity (49%), diabetes (20%), smoking (25%) compared to national benchmarks.
Overall, ZIP code 46403 reflects a community defined by economic challenges above the national average and a significant Social Security-dependent population.
46403 ZIP code map
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Cities in ZIP code 46403
Below are the cities the US Postal Service accepts for ZIP code 46403. Using any city not on this list may result in mail delivery delays.
City
Status
Gary
Preferred
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
10,875
Population density
1,174 / sq mi
State FIPS
18
County FIPS
089
Geography
Land area
9.26 sq mi
Water area
2.63 sq mi
Latitude
41.6061
Longitude
-87.2534
Timezone
Central (CT)
Area code
219
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
61.0%
43.6%
42.9%
$50k – $100k
24.4%
31.1%
32.7%
$100k – $200k
11.9%
21.2%
19.8%
Over $200k
2.6%
4.1%
4.5%
Demographics & statistics
$44,315
Median household income
$150,500
Median home value
24.8%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 2,538 23.3%
18 and over 8,337 76.7%
65 and over 2,010 18.5%
Median age 43.0 years
Race & ethnicity
Black or African American
60.3%
Group Count %
Black or African American 6,926 60.3%
White 3,092 26.9%
Hispanic or Latino 608 5.3%
Two or more races 505 4.4%
Other race 332 2.9%
Asian 15 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
61.0%
43.6%
42.9%
$50k – $100k
24.4%
31.1%
32.7%
$100k – $200k
11.9%
21.2%
19.8%
Over $200k
2.6%
4.1%
4.5%
Range % of households
Under $10k 10.9%
$10k–$15k 7.2%
$15k–$25k 10.8%
$25k–$35k 9.2%
$35k–$50k 19.3%
$50k–$75k 13.9%
$75k–$100k 11.0%
$100k–$150k 9.5%
$150k–$200k 5.2%
$200k+ 2.9%
Median income $44,315
Housing
Housing overview
Metric Value
Median home value $150,500
Median rent / month $932
Owner occupied 48.9%
Renter occupied 51.1%
Vacant 22.6%
Single-family detached 67.7%
Large apartment buildings 11.8%
Mobile homes 0.4%
Median rooms 5.0
Avg household size (owned) 2.03
Year built
Era %
2020 or later 0.1%
2010–2019 1.9%
2000–2009 5.4%
1990–1999 5.8%
1980–1989 7.8%
1970–1979 10.0%
1960–1969 20.2%
1950–1959 31.4%
1940–1949 9.8%
1939 or earlier 7.6%
Bedrooms
Size % of units
No bedroom (studio) 2.6%
1 bedroom 9.0%
2 bedrooms 35.7%
3 bedrooms 40.3%
4 bedrooms 10.9%
5+ bedrooms 1.6%
Vehicles per household
Vehicles % of households
No vehicle 12.2%
1 vehicle 51.3%
2 vehicles 24.4%
3 or more 12.2%
Heating fuel
Fuel type %
Utility gas 88.8%
Electricity 8.5%
Propane / LP gas 2.2%
Fuel oil 0.3%
No fuel used 0.2%
Households & families
Household type Count %
Married-couple family 1,102 22.7%
Cohabiting couple 574 11.8%
Male householder, no spouse 1,303 26.8%
Female householder, no spouse 1,882 38.7%
Households with children under 18 1,255 25.8%
Households with seniors (65+) 1,643 33.8%
Average household size 2.21
Marital status
Status Male Female
Never married 45.0% 42.3%
Married 29.5% 26.4%
Separated 3.7% 0.2%
Widowed 5.0% 9.8%
Divorced 16.8% 21.3%
Education
Some college, no degree
23.3%
Graduate / professional
11.2%
Metric %
HS diploma or higher 89.7%
Bachelor's or higher 24.8%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 37 1.7%
Kindergarten 268 12.6%
Elementary school 849 39.9%
High school 625 29.4%
College / grad school 348 16.4%
Employment
Industry of employment
Education & healthcare
27.6%
Professional & management
12.6%
Arts, food & hospitality
11.2%
Transportation & utilities
9.7%
Finance & real estate
3.9%
Public administration
1.3%
Occupation
Category %
Management, business & arts 24.7%
Service 24.8%
Sales & office 26.8%
Natural resources & construction 4.5%
Production & transportation 19.2%
Employment type
Type %
Private sector 89.0%
Government 7.8%
Self-employed 3.2%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 77.5%
Carpool 10.4%
Public transit 7.5%
Walk 0.9%
Work from home 3.7%
Other means 0.0%
Avg commute (minutes) 31.8
Poverty
Married-couple families
2.5%
Female-led households
54.9%
Income support
Source % of households
Social Security 36.9%
Retirement income 29.2%
Supplemental Security 8.5%
Cash public assistance 2.7%
Food stamps / SNAP 16.8%
Health indicators
Condition %
Obesity 49.3%
High blood pressure 45.7%
High cholesterol 31.4%
Diabetes 19.5%
Heart disease 7.8%
Stroke 5.1%
Asthma 12.5%
Arthritis 31.8%
Kidney disease 4.2%
Pulmonary disease 9.3%
Cancer 5.8%
Behavior / access %
Smoking 24.8%
Binge drinking 12.2%
No physical activity 36.6%
Less than 7 hrs sleep 43.2%
Depression 18.7%
Fair or poor health 26.0%
Poor mental health 16.5%
Poor physical health 14.9%
No health insurance 17.9%
Visited doctor (checkup) 81.7%
Visited dentist 49.1%
Cholesterol screening 90.6%
Teeth loss 21.7%
Veterans & disability
Veterans Count %
Civilian veterans 644 7.7%
Disability %
Any disability 15.8%
Under 18 2.8%
18–64 years 17.4%
65 and over 27.1%
Health insurance coverage
Type %
Private insurance 50.3%
Public insurance 55.4%
No insurance 8.8%
Uninsured under 19 7.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 10,098 92.9%
Spanish 60 0.6%
Other Indo-European 48 0.5%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 10,536 96.9%
Born in same state 10,416 95.8%
Born in different state 5,500 50.6%
Foreign born 120 1.1%
Naturalized citizen 339 3.1%
Not a US citizen 50 14.7%
Ancestry
Ancestry Count %
French 307 2.8%
Italian 279 2.6%
English 130 1.2%
Arab 118 1.1%
Ancestry Count %
Irish 67 0.6%
Norwegian 25 0.2%
Dutch 11 0.1%
Technology access
Metric % of households
Computer access 44.7%
Internet access 92.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 46403
What city is ZIP code 46403 in?
ZIP code 46403 is primarily assigned to Gary, Indiana.
What county is ZIP code 46403 in?
ZIP code 46403 falls within Lake County, Indiana.
What is the poverty rate in ZIP code 46403?
25% of residents in ZIP code 46403 live below the poverty line, above the national average.
What are the health statistics for ZIP code 46403?
Health data for ZIP code 46403 shows elevated rates of obesity (49%) and diabetes (20%) and smoking (25%) compared to national benchmarks.
Does ZIP code 46403 have a large retiree population?
37% of households in ZIP code 46403 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 46403?
The median home value in ZIP code 46403 is $150,500.
What timezone is ZIP code 46403 in?
ZIP code 46403 observes the CST timezone.
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