46319 ZIP Code — Griffith, IN
Lake County, Indiana
ZIP code 46319 is located in Griffith, Indiana, within Lake County. It covers approximately 9.58 square miles and serves a population of 17,626 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 219.
About ZIP code 46319
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1960s, giving the area an established character. Median home value is $177,300. Owner-occupancy sits near the national average at 74%.
Median household income is $73,275. 32% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 30 minutes is near the national average.
Educational attainment is near the national average, with 25% of residents holding a bachelor's degree or higher.
17,626
population
9.58
sq mi land
Standard
ZIP type
Central (CT)
timezone
46319 ZIP code map
Cities in ZIP code 46319
Below are the cities the US Postal Service accepts for ZIP code 46319. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Griffith | Acceptable |
| Griffith | Preferred |
Nearby ZIP codes
46322 Highland (2.5 mi)
46375 Schererville (2.6 mi)
46408 Gary (3 mi)
46321 Munster (4.6 mi)
46323 Hammond (4.9 mi)
46404 Gary (5 mi)
46409 Gary (5.5 mi)
46373 Saint John (5.6 mi)
46406 Gary (5.7 mi)
46324 Hammond (5.8 mi)
46311 Dyer (5.8 mi)
46410 Merrillville (6.2 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 17,626 |
| Population density | 1,840 / sq mi |
| State FIPS | 18 |
| County FIPS | 089 |
| Geography | |
|---|---|
| Land area | 9.58 sq mi |
| Water area | 0.02 sq mi |
| Latitude | 41.5217 |
| Longitude | -87.4228 |
| Timezone | Central (CT) |
| Area code | 219 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 37.5% | 43.6% | 42.9% |
| $50k – $100k | 34.4% | 31.1% | 32.7% |
| $100k – $200k | 24.9% | 21.2% | 19.8% |
| Over $200k | 3.2% | 4.1% | 4.5% |
Demographics & statistics
17,626
Population
1,840
People per sq mi
38.0
Median age
$73,275
Median household income
$37,292
Per capita income
$177,300
Median home value
$1,096
Median monthly rent
73.8%
Home ownership
9.0%
Poverty rate
4.3%
Unemployment
5,759
Housing units
25.3%
Bachelor's or higher
Age distribution
Male
Female
606
Under 5
596
503
5–9
495
363
10–14
357
593
15–19
583
469
20–24
462
1,321
25–34
1,299
1,276
35–44
1,254
1,240
45–54
1,220
664
55–59
653
550
60–64
540
785
65–74
772
388
75–84
382
129
85+
126
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 3,539 | 20.1% |
| 18 and over | 14,087 | 79.9% |
| 65 and over | 2,582 | 14.6% |
| Median age | 38.0 years | |
Race & ethnicity
White
58.9%
Black or African American
13.8%
Hispanic or Latino
11.1%
Two or more races
8.5%
Other race
5%
Asian
2%
American Indian / Alaska Native
0.7%
| Group | Count | % |
|---|---|---|
| White | 11,682 | 58.9% |
| Black or African American | 2,729 | 13.8% |
| Hispanic or Latino | 2,202 | 11.1% |
| Two or more races | 1,685 | 8.5% |
| Other race | 995 | 5% |
| Asian | 388 | 2% |
| American Indian / Alaska Native | 147 | 0.7% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 37.5% | 43.6% | 42.9% |
| $50k – $100k | 34.4% | 31.1% | 32.7% |
| $100k – $200k | 24.9% | 21.2% | 19.8% |
| Over $200k | 3.2% | 4.1% | 4.5% |
Under $10k
3.9%
$10k–$15k
4.4%
$15k–$25k
4.0%
$25k–$35k
8.8%
$35k–$50k
8.7%
$50k–$75k
20.7%
$75k–$100k
15.6%
$100k–$150k
20.6%
$150k–$200k
8.2%
$200k+
5.1%
| Range | % of households |
|---|---|
| Under $10k | 3.9% |
| $10k–$15k | 4.4% |
| $15k–$25k | 4.0% |
| $25k–$35k | 8.8% |
| $35k–$50k | 8.7% |
| $50k–$75k | 20.7% |
| $75k–$100k | 15.6% |
| $100k–$150k | 20.6% |
| $150k–$200k | 8.2% |
| $200k+ | 5.1% |
| Median income | $73,275 |
Housing
Home values
Under $50k
4.4%
$50k–$100k
6.0%
$100k–$150k
20.9%
$150k–$200k
30.3%
$200k–$300k
30.3%
$300k–$500k
6.0%
$500k–$1M
1.1%
$1M+
1.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $177,300 |
| Median rent / month | $1,096 |
| Owner occupied | 73.8% |
| Renter occupied | 26.2% |
| Vacant | 6.6% |
| Single-family detached | 71.7% |
| Large apartment buildings | 5.5% |
| Mobile homes | 0.8% |
| Median rooms | 5.5 |
| Avg household size (owned) | 2.61 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.1% |
| 2010–2019 | 1.5% |
| 2000–2009 | 4.4% |
| 1990–1999 | 6.7% |
| 1980–1989 | 13.2% |
| 1970–1979 | 15.7% |
| 1960–1969 | 26.1% |
| 1950–1959 | 20.1% |
| 1940–1949 | 4.6% |
| 1939 or earlier | 7.7% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 9.5% |
| 2 bedrooms | 26.0% |
| 3 bedrooms | 46.6% |
| 4 bedrooms | 14.9% |
| 5+ bedrooms | 2.9% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 3.3% |
| 1 vehicle | 38.4% |
| 2 vehicles | 37.8% |
| 3 or more | 20.5% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 82.8% |
| Electricity | 12.7% |
| Propane / LP gas | 2.0% |
| Wood | 0.1% |
| No fuel used | 1.3% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 3,305 | 46.4% |
| Cohabiting couple | 387 | 5.4% |
| Male householder, no spouse | 1,462 | 20.5% |
| Female householder, no spouse | 1,971 | 27.7% |
| Households with children under 18 | 2,350 | 33.0% |
| Households with seniors (65+) | 2,129 | 29.9% |
| Average household size | 2.47 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 34.0% | 32.0% |
| Married | 48.0% | 45.8% |
| Separated | 0.5% | 1.3% |
| Widowed | 3.6% | 7.2% |
| Divorced | 13.8% | 13.6% |
Education
Less than 9th grade
1.6%
Some HS, no diploma
2.4%
HS graduate
39.1%
Some college, no degree
24.0%
Associate's degree
7.7%
Bachelor's degree
17.7%
Graduate / professional
7.6%
| Metric | % |
|---|---|
| HS diploma or higher | 96.0% |
| Bachelor's or higher | 25.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 530 | 15.2% |
| Kindergarten | 340 | 9.7% |
| Elementary school | 1,154 | 33.0% |
| High school | 858 | 24.6% |
| College / grad school | 612 | 17.5% |
Employment
Industry of employment
Education & healthcare
26.2%
Manufacturing
14.7%
Retail trade
13.1%
Construction
11.1%
Arts, food & hospitality
8.2%
Professional & management
7.2%
Transportation & utilities
6.8%
Other services
5.8%
Finance & real estate
2.9%
Wholesale trade
1.6%
Public administration
1.4%
Information
0.6%
Agriculture & mining
0.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 34.0% |
| Service | 16.8% |
| Sales & office | 17.6% |
| Natural resources & construction | 12.1% |
| Production & transportation | 19.6% |
Employment type
| Type | % |
|---|---|
| Private sector | 88.3% |
| Government | 9.3% |
| Self-employed | 2.4% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 82.9% |
| Carpool | 8.9% |
| Public transit | 2.2% |
| Walk | 0.0% |
| Work from home | 4.2% |
| Other means | 1.8% |
| Avg commute (minutes) | 30.1 |
Poverty
All people
9.0%
Under 18 years
10.6%
18 and over
8.6%
Married-couple families
4.9%
Female-led households
12.7%
Income support
| Source | % of households |
|---|---|
| Social Security | 32.2% |
| Retirement income | 25.9% |
| Supplemental Security | 3.2% |
| Cash public assistance | 1.3% |
| Food stamps / SNAP | 9.3% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 37.5% |
| High blood pressure | 30.6% |
| High cholesterol | 29.4% |
| Diabetes | 10.5% |
| Heart disease | 5.7% |
| Stroke | 2.7% |
| Asthma | 9.9% |
| Arthritis | 24.9% |
| Kidney disease | 2.6% |
| Pulmonary disease | 6.7% |
| Cancer | 5.8% |
| Behavior / access | % |
|---|---|
| Smoking | 19.5% |
| Binge drinking | 17.9% |
| No physical activity | 25.9% |
| Less than 7 hrs sleep | 34.9% |
| Depression | 20.5% |
| Fair or poor health | 15.0% |
| Poor mental health | 15.4% |
| Poor physical health | 10.3% |
| No health insurance | 14.8% |
| Visited doctor (checkup) | 74.7% |
| Visited dentist | 62.5% |
| Cholesterol screening | 89.0% |
| Teeth loss | 13.8% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,054 | 7.5% |
| Disability | % |
|---|---|
| Any disability | 9.9% |
| Under 18 | 1.7% |
| 18–64 years | 8.9% |
| 65 and over | 25.4% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 71.8% |
| Public insurance | 32.6% |
| No insurance | 7.3% |
| Uninsured under 19 | 7.1% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 16,424 | 93.2% |
| Spanish | 339 | 2.1% |
| Other Indo-European | 161 | 1.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 159 | 1.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 16,661 | 94.5% |
| Born in same state | 16,585 | 94.1% |
| Born in different state | 10,406 | 59.0% |
| Foreign born | 76 | 0.4% |
| Naturalized citizen | 965 | 5.5% |
| Not a US citizen | 750 | 77.7% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,305 | 13.1% |
| English | 767 | 4.4% |
| French | 698 | 4% |
| Arab | 639 | 3.6% |
| Irish | 283 | 1.6% |
| Ancestry | Count | % |
|---|---|---|
| Polish | 161 | 0.9% |
| German | 73 | 0.4% |
| Norwegian | 21 | 0.1% |
| Dutch | 7 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.4% |
| Internet access | 96.6% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 46319
What city is ZIP code 46319 in?
ZIP code 46319 is primarily assigned to Griffith, Indiana.
What county is ZIP code 46319 in?
ZIP code 46319 falls within Lake County, Indiana.
What is the typical home value in ZIP code 46319?
The median home value in ZIP code 46319 is $177,300.
What is the population of ZIP code 46319?
ZIP code 46319 has an estimated population of 17,626 residents, with a density of 1,840 people per square mile.
What is the median household income in ZIP code 46319?
The median household income in ZIP code 46319 is $73,275, below the national median of ~$75,000.
What timezone is ZIP code 46319 in?
ZIP code 46319 observes the CST timezone.