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Indiana ZIP Codes
Johnson County
Trafalgar, IN
46181
46181 ZIP Code — Trafalgar, IN
Johnson County, Indiana
ZIP code 46181 is located in
Trafalgar ,
Indiana ,
within Johnson County .
It covers approximately 45.45 square miles and serves a population of
5,186 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 317 .
About ZIP code 46181
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $280,400. Owner-occupancy is high at 90%, well above the national average.
The gap between median ($86,836) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average. 40% 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 31 minutes is near the national average.
Educational attainment is near the national average, with 32% of residents holding a bachelor's degree or higher.
Health indicators show elevated rates of smoking (20%) compared to national benchmarks.
Overall, ZIP code 46181 reflects a community defined by high homeownership and a significant Social Security-dependent population.
46181 ZIP code map
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Cities in ZIP code 46181
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
5,186
Population density
114 / sq mi
State FIPS
18
County FIPS
081
Geography
Land area
45.45 sq mi
Water area
0.51 sq mi
Latitude
39.3733
Longitude
-86.1623
Timezone
Eastern (ET)
Area code
317
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
23.8%
31.9%
42.9%
$50k – $100k
40.1%
35.5%
32.7%
$100k – $200k
24.7%
26.1%
19.8%
Over $200k
11.4%
6.5%
4.5%
Demographics & statistics
$86,836
Median household income
$280,400
Median home value
$1,161
Median monthly rent
31.6%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 1,374 26.5%
18 and over 3,812 73.5%
65 and over 969 18.7%
Median age 43.7 years
Race & ethnicity
Group Count %
White 5,046 96.6%
Two or more races 72 1.4%
Hispanic or Latino 36 0.7%
Other race 36 0.7%
Asian 32 0.6%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
23.8%
31.9%
42.9%
$50k – $100k
40.1%
35.5%
32.7%
$100k – $200k
24.7%
26.1%
19.8%
Over $200k
11.4%
6.5%
4.5%
Range % of households
Under $10k 1.4%
$10k–$15k 2.0%
$15k–$25k 7.9%
$25k–$35k 4.5%
$35k–$50k 7.6%
$50k–$75k 13.8%
$75k–$100k 24.6%
$100k–$150k 18.2%
$150k–$200k 7.1%
$200k+ 13.0%
Median income $86,836
Housing
Housing overview
Metric Value
Median home value $280,400
Median rent / month $1,161
Owner occupied 90.2%
Renter occupied 9.8%
Vacant 3.5%
Single-family detached 92.9%
Large apartment buildings 1.0%
Mobile homes 2.7%
Median rooms 6.4
Avg household size (owned) 2.77
Year built
Era %
2020 or later 1.4%
2010–2019 13.7%
2000–2009 15.0%
1990–1999 18.7%
1980–1989 10.5%
1970–1979 10.6%
1960–1969 5.5%
1950–1959 6.8%
1940–1949 1.7%
1939 or earlier 16.2%
Bedrooms
Size % of units
No bedroom (studio) 0.3%
1 bedroom 8.0%
2 bedrooms 18.2%
3 bedrooms 50.9%
4 bedrooms 18.8%
5+ bedrooms 3.8%
Vehicles per household
Vehicles % of households
No vehicle 6.6%
1 vehicle 21.2%
2 vehicles 25.9%
3 or more 46.3%
Heating fuel
Fuel type %
Utility gas 44.9%
Electricity 26.8%
Propane / LP gas 17.7%
Fuel oil 1.9%
Wood 6.4%
No fuel used 0.5%
Households & families
Household type Count %
Married-couple family 1,177 61.1%
Cohabiting couple 38 2.0%
Male householder, no spouse 325 16.9%
Female householder, no spouse 387 20.1%
Households with children under 18 738 38.3%
Households with seniors (65+) 697 36.2%
Average household size 2.69
Marital status
Status Male Female
Never married 24.6% 20.4%
Married 61.9% 59.8%
Separated 0.6% 2.8%
Widowed 2.8% 9.9%
Divorced 10.1% 7.1%
Education
Some college, no degree
20.3%
Graduate / professional
11.0%
Metric %
HS diploma or higher 95.6%
Bachelor's or higher 31.6%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 43 3.1%
Kindergarten 87 6.3%
Elementary school 539 39.2%
High school 476 34.6%
College / grad school 231 16.8%
Employment
Industry of employment
Education & healthcare
28.1%
Arts, food & hospitality
7.0%
Professional & management
6.1%
Public administration
4.9%
Transportation & utilities
3.6%
Agriculture & mining
1.8%
Finance & real estate
1.7%
Occupation
Category %
Management, business & arts 37.2%
Service 19.7%
Sales & office 20.2%
Natural resources & construction 12.6%
Production & transportation 10.3%
Employment type
Type %
Private sector 80.0%
Government 11.0%
Self-employed 9.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 83.9%
Carpool 4.7%
Public transit 0.3%
Walk 1.0%
Work from home 9.4%
Other means 0.8%
Avg commute (minutes) 31.1
Poverty
Married-couple families
0.9%
Female-led households
35.5%
Income support
Source % of households
Social Security 39.8%
Retirement income 32.5%
Supplemental Security 2.9%
Cash public assistance 2.5%
Food stamps / SNAP 6.1%
Health indicators
Condition %
Obesity 34.3%
High blood pressure 33.9%
High cholesterol 34.9%
Diabetes 10.4%
Heart disease 6.3%
Stroke 2.7%
Asthma 9.4%
Arthritis 26.6%
Kidney disease 2.6%
Pulmonary disease 7.5%
Cancer 6.8%
Behavior / access %
Smoking 20.3%
Binge drinking 17.2%
No physical activity 22.9%
Less than 7 hrs sleep 32.1%
Depression 23.0%
Fair or poor health 13.6%
Poor mental health 15.1%
Poor physical health 10.2%
No health insurance 11.2%
Visited doctor (checkup) 74.4%
Visited dentist 65.7%
Cholesterol screening 90.1%
Teeth loss 13.2%
Veterans & disability
Veterans Count %
Civilian veterans 208 5.5%
Disability %
Any disability 11.1%
Under 18 2.2%
18–64 years 7.2%
65 and over 35.0%
Health insurance coverage
Type %
Private insurance 79.4%
Public insurance 26.1%
No insurance 3.4%
Uninsured under 19 1.2%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 4,927 95.0%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 5,151 99.3%
Born in same state 5,151 99.3%
Born in different state 4,365 84.2%
Foreign born 0 0.0%
Naturalized citizen 35 0.7%
Not a US citizen 28 80.0%
Ancestry
Ancestry Count %
Arab 894 17.2%
French 707 13.6%
Italian 195 3.8%
Ancestry Count %
English 27 0.5%
Dutch 14 0.3%
German 3 0.1%
Technology access
Metric % of households
Computer access 37.2%
Internet access 96.3%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 46181
What city is ZIP code 46181 in?
ZIP code 46181 is primarily assigned to Trafalgar, Indiana.
What county is ZIP code 46181 in?
ZIP code 46181 falls within Johnson County, Indiana.
Is ZIP code 46181 mostly owner-occupied?
90% of occupied units in ZIP code 46181 are owner-occupied, well above the national average.
Does ZIP code 46181 have a large retiree population?
40% of households in ZIP code 46181 receive Social Security income, suggesting a significant retiree or disability population.
What is the population of ZIP code 46181?
ZIP code 46181 has an estimated population of 5,186 residents, with a density of 114 people per square mile.
What is the typical home value in ZIP code 46181?
The median home value in ZIP code 46181 is $280,400.
What timezone is ZIP code 46181 in?
ZIP code 46181 observes the EST timezone.
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