47857 ZIP Code — Knightsville, IN

Clay County, Indiana

ZIP code 47857 is located in Knightsville, Indiana, within Clay County. It covers approximately 0.50 square miles and serves a population of 350 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 812.

About ZIP code 47857

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 $96,400. Owner-occupancy is high at 79%, well above the national average.

Median household income is $62,000. The poverty rate of 3% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 23 minutes is near the national average.

College attainment at 9% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

Overall, ZIP code 47857 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

350

population

0.50

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

47857 ZIP code map

Cities in ZIP code 47857

Below are the cities the US Postal Service accepts for ZIP code 47857. Using any city not on this list may result in mail delivery delays.

City	Status
Knightsville	Acceptable

Demographics updated 05/2026

Population
Total population	350
Population density	700 / sq mi
State FIPS	18
County FIPS	021

Geography
Land area	0.50 sq mi
Water area	0.00 sq mi
Latitude	39.5298
Longitude	-87.0986
Timezone	Eastern (ET)
Area code	812

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	41.0%	42.4%	42.9%
$50k – $100k	48.4%	37.4%	32.7%
$100k – $200k	10.7%	18.1%	19.8%
Over $200k	0.0%	2.1%	4.5%

Demographics & statistics

350

Population

700

People per sq mi

60.1

Median age

$62,000

Median household income

$26,504

Per capita income

$96,400

Median home value

$640

Median monthly rent

78.8%

Home ownership

2.5%

Poverty rate

3.4%

Unemployment

102

Housing units

8.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	36	10.3%
18 and over	314	89.7%
65 and over	134	38.3%
Median age	60.1 years

Race & ethnicity

White 98.3%

Black or African American 1.7%

Group	Count	%
White	344	98.3%
Black or African American	6	1.7%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	41.0%	42.4%	42.9%
$50k – $100k	48.4%	37.4%	32.7%
$100k – $200k	10.7%	18.1%	19.8%
Over $200k	0.0%	2.1%	4.5%

$10k–$15k 3.8%

$15k–$25k 12.5%

$25k–$35k 11.5%

$35k–$50k 5.8%

$50k–$75k 20.2%

$75k–$100k 22.1%

$100k–$150k 24.0%

Range	% of households
$10k–$15k	3.8%
$15k–$25k	12.5%
$25k–$35k	11.5%
$35k–$50k	5.8%
$50k–$75k	20.2%
$75k–$100k	22.1%
$100k–$150k	24.0%
Median income	$62,000

Housing

Home values

Under $50k 9.8%

$50k–$100k 51.2%

$100k–$150k 29.3%

$150k–$200k 9.8%

Housing overview

Metric	Value
Median home value	$96,400
Median rent / month	$640
Owner occupied	78.8%
Renter occupied	21.2%
Vacant	16.1%
Single-family detached	87.1%
Large apartment buildings	0.0%
Mobile homes	11.3%
Median rooms	6.2
Avg household size (owned)	2.15

Year built

Era	%
2020 or later	0.0%
2010–2019	7.3%
2000–2009	14.5%
1990–1999	8.9%
1980–1989	16.1%
1970–1979	9.7%
1960–1969	16.1%
1950–1959	3.2%
1940–1949	0.8%
1939 or earlier	23.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.2%
2 bedrooms	31.5%
3 bedrooms	43.5%
4 bedrooms	20.2%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	7.7%
1 vehicle	17.3%
2 vehicles	41.3%
3 or more	33.7%

Heating fuel

Fuel type	%
Utility gas	45.2%
Electricity	51.9%
Propane / LP gas	2.9%

Households & families

Household type	Count	%
Married-couple family	58	55.8%
Cohabiting couple	2	1.9%
Male householder, no spouse	35	33.7%
Female householder, no spouse	9	8.7%
Households with children under 18	19	18.3%
Households with seniors (65+)	34	32.7%
Average household size	2.33

Marital status

Status	Male	Female
Never married	26.7%	14.6%
Married	39.4%	51.3%
Separated	0.0%	0.0%
Widowed	12.7%	31.6%
Divorced	21.2%	2.5%

Education

Less than 9th grade 9.3%

Some HS, no diploma 13.3%

HS graduate 40.0%

Some college, no degree 18.1%

Associate's degree 10.4%

Bachelor's degree 7.8%

Graduate / professional 1.1%

Metric	%
HS diploma or higher	77.4%
Bachelor's or higher	8.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	17	48.6%
High school	13	37.1%
College / grad school	5	14.3%

Employment

Industry of employment

Manufacturing 24.1%

Education & healthcare 22.7%

Retail trade 13.5%

Construction 9.2%

Transportation & utilities 7.8%

Finance & real estate 7.1%

Professional & management 4.3%

Arts, food & hospitality 3.5%

Information 2.8%

Wholesale trade 2.1%

Other services 1.4%

Agriculture & mining 0.7%

Public administration 0.7%

Occupation

Category	%
Management, business & arts	29.8%
Service	19.9%
Sales & office	5.7%
Natural resources & construction	22.0%
Production & transportation	22.7%

Employment type

Type	%
Private sector	82.3%
Government	14.9%
Self-employed	2.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	90.1%
Carpool	2.8%
Public transit	1.4%
Walk	0.0%
Work from home	5.7%
Other means	0.0%
Avg commute (minutes)	22.6

Poverty

All people 2.5%

Under 18 years 0.0%

18 and over 2.9%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	34.6%
Retirement income	22.1%
Supplemental Security	2.9%
Cash public assistance	0.0%
Food stamps / SNAP	2.9%

Health indicators

Condition	%
Obesity	37.9%
High blood pressure	38.5%
High cholesterol	36.1%
Diabetes	12.5%
Heart disease	9.3%
Stroke	4.3%
Asthma	9.5%
Arthritis	29.9%
Kidney disease	3.8%
Pulmonary disease	10.1%
Cancer	8.6%

Behavior / access	%
Smoking	21.3%
Binge drinking	15.0%
No physical activity	31.0%
Less than 7 hrs sleep	33.2%
Depression	22.5%
Fair or poor health	18.8%
Poor mental health	15.0%
Poor physical health	12.7%
No health insurance	14.4%
Visited doctor (checkup)	75.7%
Visited dentist	58.2%
Cholesterol screening	88.0%
Teeth loss	20.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	22	7.0%

Disability	%
Any disability	8.7%
Under 18	0.0%
18–64 years	3.1%
65 and over	37.2%

Health insurance coverage

Type	%
Private insurance	76.0%
Public insurance	28.9%
No insurance	5.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	340	97.1%
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)	350	100.0%
Born in same state	350	100.0%
Born in different state	285	81.4%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	71	20.3%
French	51	14.6%

Ancestry	Count	%
Italian	12	3.4%
Dutch	2	0.6%

Technology access

Metric	% of households
Computer access	29.7%
Internet access	96.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 47857

What city is ZIP code 47857 in?

ZIP code 47857 is primarily assigned to Knightsville, Indiana.

What county is ZIP code 47857 in?

ZIP code 47857 falls within Clay County, Indiana.

Does ZIP code 47857 have an older population?

38% of residents in ZIP code 47857 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 47857?

9% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the typical home value in ZIP code 47857?

The median home value in ZIP code 47857 is $96,400.

What is the population of ZIP code 47857?

ZIP code 47857 has an estimated population of 350 residents, with a density of 700 people per square mile.

What timezone is ZIP code 47857 in?

ZIP code 47857 observes the EST timezone.