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Indiana ZIP Codes
Knox County
Sandborn, IN
47578
47578 ZIP Code — Sandborn, IN
Knox County, Indiana
ZIP code 47578 is located in
Sandborn ,
Indiana ,
within Knox County .
It covers approximately 43.48 square miles and serves a population of
490 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 812 .
About ZIP code 47578
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $110,500. Owner-occupancy is high at 89%, well above the national average.
Median household income is $52,055. The poverty rate of 5% is below the national average. 60% 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. An above-average commute of 40 minutes suggests many residents work outside the immediate area.
College attainment at 16% is below the national average, consistent with a trades and production-oriented local economy.
Notable community characteristics include a notable veteran presence at 16% of civilians, above the national average of 7%; and disability rates above the national average at 24%.
Overall, ZIP code 47578 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
47578 ZIP code map
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Cities in ZIP code 47578
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
490
Population density
11 / sq mi
State FIPS
18
County FIPS
083
Geography
Land area
43.48 sq mi
Water area
0.70 sq mi
Latitude
38.8706
Longitude
-87.1846
Timezone
Eastern (ET)
Area code
812
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
36.1%
51.4%
42.9%
$50k – $100k
39.8%
29.7%
32.7%
$100k – $200k
23.5%
14.8%
19.8%
Over $200k
0.7%
4.1%
4.5%
Demographics & statistics
$52,055
Median household income
$110,500
Median home value
16.2%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 41 8.4% 18 and over 449 91.6% 65 and over 231 47.1% Median age 61.9 years
Race & ethnicity
Group Count % White 484 98.8% Two or more races 6 1.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
36.1%
51.4%
42.9%
$50k – $100k
39.8%
29.7%
32.7%
$100k – $200k
23.5%
14.8%
19.8%
Over $200k
0.7%
4.1%
4.5%
Range % of households Under $10k 0.8% $10k–$15k 4.3% $15k–$25k 2.4% $25k–$35k 3.9% $35k–$50k 19.6% $50k–$75k 37.6% $75k–$100k 11.4% $100k–$150k 18.4% $150k–$200k 0.4% $200k+ 1.2% Median income $52,055
Housing
Housing overview
Metric Value Median home value $110,500 Median rent / month $655 Owner occupied 89.4% Renter occupied 10.6% Vacant 12.4% Single-family detached 91.1% Large apartment buildings 0.0% Mobile homes 7.2% Median rooms 5.8 Avg household size (owned) 1.84
Year built
Era % 2020 or later 2.1% 2010–2019 7.6% 2000–2009 22.3% 1990–1999 5.5% 1980–1989 3.8% 1970–1979 11.0% 1960–1969 5.8% 1950–1959 5.5% 1940–1949 5.8% 1939 or earlier 30.6%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 0.0% 2 bedrooms 21.6% 3 bedrooms 69.8% 4 bedrooms 7.9% 5+ bedrooms 0.7%
Vehicles per household
Vehicles % of households No vehicle 0.0% 1 vehicle 20.8% 2 vehicles 49.8% 3 or more 29.4%
Heating fuel
Fuel type % Utility gas 35.7% Electricity 55.7% Propane / LP gas 7.1% Fuel oil 0.8% Wood 0.8%
Households & families
Household type Count % Married-couple family 170 66.7% Cohabiting couple 7 2.7% Male householder, no spouse 34 13.3% Female householder, no spouse 44 17.3% Households with children under 18 33 12.9% Households with seniors (65+) 153 60.0% Average household size 1.92
Marital status
Status Male Female Never married 12.4% 9.4% Married 69.6% 72.1% Separated 0.9% 0.0% Widowed 6.0% 7.7% Divorced 11.1% 10.7%
Education
Some college, no degree
40.1%
Graduate / professional
4.2%
Metric % HS diploma or higher 93.7% Bachelor's or higher 16.2%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 1 1.9% Kindergarten 5 9.4% Elementary school 29 54.7% High school 4 7.5% College / grad school 14 26.4%
Employment
Industry of employment
Education & healthcare
23.1%
Public administration
10.1%
Agriculture & mining
8.5%
Finance & real estate
8.0%
Professional & management
8.0%
Arts, food & hospitality
6.5%
Transportation & utilities
4.0%
Occupation
Category % Management, business & arts 34.7% Service 15.6% Sales & office 15.1% Natural resources & construction 10.6% Production & transportation 24.1%
Employment type
Type % Private sector 81.9% Government 18.1% Self-employed 0.0% Unpaid family workers 0.0%
Commute
Method % Drive alone 76.3% Carpool 12.9% Public transit 0.0% Walk 2.1% Work from home 8.2% Other means 0.5% Avg commute (minutes) 40.4
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households Social Security 59.6% Retirement income 47.5% Supplemental Security 2.0% Cash public assistance 0.0% Food stamps / SNAP 0.0%
Health indicators
Condition % Obesity 40.3% High blood pressure 36.8% High cholesterol 36.1% Diabetes 11.5% Heart disease 7.8% Stroke 3.4% Asthma 9.7% Arthritis 28.4% Kidney disease 3.1% Pulmonary disease 8.8% Cancer 7.8%
Behavior / access % Smoking 19.9% Binge drinking 15.4% No physical activity 26.1% Less than 7 hrs sleep 33.6% Depression 22.7% Fair or poor health 15.7% Poor mental health 14.8% Poor physical health 11.4% No health insurance 11.9% Visited doctor (checkup) 76.9% Visited dentist 64.0% Cholesterol screening 89.8% Teeth loss 15.7%
Veterans & disability
Veterans Count % Civilian veterans 70 15.6%
Disability % Any disability 24.1% Under 18 2.4% 18–64 years 12.4% 65 and over 39.0%
Health insurance coverage
Type % Private insurance 82.2% Public insurance 52.2% No insurance 5.3% Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 486 99.2% 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) 490 100.0% Born in same state 490 100.0% Born in different state 419 85.5% Foreign born 0 0.0% Naturalized citizen 0 0.0% Not a US citizen 0 0.0%
Ancestry
Ancestry Count % French 94 19.2% Italian 49 10%
Ancestry Count % Arab 31 6.3%
Technology access
Metric % of households Computer access 52.0% Internet access 83.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 47578
What city is ZIP code 47578 in?
ZIP code 47578 is primarily assigned to Sandborn, Indiana.
What county is ZIP code 47578 in?
ZIP code 47578 falls within Knox County, Indiana.
Does ZIP code 47578 have an older population?
47% of residents in ZIP code 47578 are 65 or older, above the national average of ~17%.
Does ZIP code 47578 have a large retiree population?
60% of households in ZIP code 47578 receive Social Security income, suggesting a significant retiree or disability population.
Is ZIP code 47578 mostly owner-occupied?
89% of occupied units in ZIP code 47578 are owner-occupied, well above the national average.
Does ZIP code 47578 have a large veteran population?
16% of civilians in ZIP code 47578 are veterans, above the national average of ~7%.
What timezone is ZIP code 47578 in?
ZIP code 47578 observes the EST timezone.
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