Knox County, IN ZIP Codes
Indiana (IN) · 12 ZIP codes · 12 cities
12
ZIP codes
35,956
population (2021)
-6.5%
pop change since 2010
18083
FIPS code
Knox County ZIP code map
About Knox County
Knox County is located in Indiana and contains 12 ZIP codes across 12 cities and communities.
The county's population was 35,956 as of 2021,
a decrease of
6.5% from 38,440 in 2010.
The timezone is Central Time (observes DST).
The Federal Information Processing System (FIPS) code for Knox County is 18083.
| Population | |
|---|---|
| 2021 population | 35,956 |
| 2010 population | 38,440 |
| Change | -6.5% |
| County details | |
|---|---|
| State | Indiana |
| FIPS code | 18083 |
| Timezone | Central |
| Daylight saving | Yes |
Cities in Knox County
Bicknell
Bruceville
Decker
Edwardsport
Freelandville
Monroe City
Oaktown
Ragsdale
Sandborn
Vincennes
Westphalia
Wheatland
ZIP codes for Knox County, IN (12)
| ZIP code | City | County | Map |
|---|---|---|---|
| 47512 | Bicknell | Knox | View map |
| 47516 | Bruceville | Knox | View map |
| 47524 | Decker | Knox | View map |
| 47528 | Edwardsport | Knox | View map |
| 47535 | Freelandville | Knox | View map |
| 47557 | Monroe City | Knox | View map |
| 47561 | Oaktown | Knox | View map |
| 47573 | Ragsdale | Knox | View map |
| 47578 | Sandborn | Knox | View map |
| 47591 | Vincennes | Knox | View map |
| 47596 | Westphalia | Knox | View map |
| 47597 | Wheatland | Knox | View map |
Demographics & statistics
35,416
Population
39.4
Median age
$57,809
Median household income
$33,195
Per capita income
$100,680
Median home value
$567
Median monthly rent
79.8%
Home ownership
10.3%
Poverty rate
1.6%
Unemployment
11,613
Housing units
12.6%
Bachelor's or higher
Age distribution
Male
Female
976
Under 5
874
1,197
5–9
1,070
1,054
10–14
942
1,445
15–19
1,293
1,483
20–24
1,326
2,156
25–34
1,929
2,254
35–44
2,016
2,172
45–54
1,942
1,196
55–59
1,070
1,367
60–64
1,222
1,962
65–74
1,756
1,037
75–84
928
395
85+
354
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 7,482 | 17.5% |
| 18 and over | 27,934 | 82.6% |
| 65 and over | 6,432 | 26.7% |
| Median age | 39.4 years | |
Race & ethnicity
White
89.6%
Two or more races
3.6%
Hispanic or Latino
2.5%
Black or African American
2.3%
Asian
0.9%
Other race
0.9%
Native Hawaiian / Pacific Islander
0.1%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 32,553 | 89.6% |
| Two or more races | 1,295 | 3.6% |
| Hispanic or Latino | 899 | 2.5% |
| Black or African American | 833 | 2.3% |
| Asian | 338 | 0.9% |
| Other race | 337 | 0.9% |
| Native Hawaiian / Pacific Islander | 41 | 0.1% |
| American Indian / Alaska Native | 19 | 0.1% |
Household income
Under $10k
3.9%
$10k–$15k
2.5%
$15k–$25k
10.8%
$25k–$35k
6.0%
$35k–$50k
13.3%
$50k–$75k
28.3%
$75k–$100k
13.9%
$100k–$150k
14.3%
$150k–$200k
3.3%
$200k+
3.9%
| Range | % of households |
|---|---|
| Under $10k | 3.9% |
| $10k–$15k | 2.5% |
| $15k–$25k | 10.8% |
| $25k–$35k | 6.0% |
| $35k–$50k | 13.3% |
| $50k–$75k | 28.3% |
| $75k–$100k | 13.9% |
| $100k–$150k | 14.3% |
| $150k–$200k | 3.3% |
| $200k+ | 3.9% |
| Median income | $57,809 |
Housing
Home values
Under $50k
19.0%
$50k–$100k
33.3%
$100k–$150k
14.5%
$150k–$200k
10.5%
$200k–$300k
15.5%
$300k–$500k
5.6%
$500k–$1M
1.3%
$1M+
0.2%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $100,680 |
| Median rent / month | $567 |
| Owner occupied | 79.8% |
| Renter occupied | 20.2% |
| Vacant | 10.1% |
| Single-family detached | 75.5% |
| Large apartment buildings | 0.8% |
| Mobile homes | 18.1% |
| Median rooms | 5.0 |
| Avg household size (owned) | 2.36 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.8% |
| 2010–2019 | 4.0% |
| 2000–2009 | 7.7% |
| 1990–1999 | 7.9% |
| 1980–1989 | 18.7% |
| 1970–1979 | 9.4% |
| 1960–1969 | 7.7% |
| 1950–1959 | 7.2% |
| 1940–1949 | 5.7% |
| 1939 or earlier | 31.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.9% |
| 1 bedroom | 4.4% |
| 2 bedrooms | 31.3% |
| 3 bedrooms | 52.8% |
| 4 bedrooms | 9.2% |
| 5+ bedrooms | 1.5% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 3.9% |
| 1 vehicle | 23.1% |
| 2 vehicles | 48.7% |
| 3 or more | 24.3% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 40.8% |
| Electricity | 37.3% |
| Propane / LP gas | 18.3% |
| Fuel oil | 0.4% |
| Wood | 2.5% |
| No fuel used | 0.6% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 7,338 | 59.5% |
| Cohabiting couple | 853 | 4.4% |
| Male householder, no spouse | 2,864 | 15.8% |
| Female householder, no spouse | 3,654 | 20.4% |
| Households with children under 18 | 4,462 | 23.4% |
| Households with seniors (65+) | 4,576 | 43.4% |
| Average household size | 2.30 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 20.9% | 15.6% |
| Married | 63.3% | 62.7% |
| Separated | 0.5% | 0.8% |
| Widowed | 2.2% | 10.4% |
| Divorced | 13.0% | 10.5% |
Education
Less than 9th grade
2.1%
Some HS, no diploma
6.4%
HS graduate
45.1%
Some college, no degree
21.4%
Associate's degree
12.4%
Bachelor's degree
8.3%
Graduate / professional
4.2%
| Metric | % |
|---|---|
| HS diploma or higher | 91.5% |
| Bachelor's or higher | 12.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 487 | 5.2% |
| Kindergarten | 526 | 5.9% |
| Elementary school | 3,268 | 43.6% |
| High school | 1,674 | 19.9% |
| College / grad school | 2,514 | 15.5% |
Employment
Industry of employment
Education & healthcare
20.0%
Manufacturing
15.2%
Retail trade
9.9%
Agriculture & mining
8.1%
Transportation & utilities
5.6%
Construction
5.5%
Arts, food & hospitality
5.1%
Public administration
5.1%
Professional & management
5.0%
Other services
4.6%
Finance & real estate
2.8%
Wholesale trade
2.5%
Information
0.5%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 26.0% |
| Service | 15.6% |
| Sales & office | 15.0% |
| Natural resources & construction | 13.3% |
| Production & transportation | 20.1% |
Employment type
| Type | % |
|---|---|
| Private sector | 72.1% |
| Government | 12.6% |
| Self-employed | 5.1% |
| Unpaid family workers | 0.2% |
Commute
| Method | % |
|---|---|
| Drive alone | 76.1% |
| Carpool | 8.0% |
| Public transit | 0.6% |
| Walk | 1.4% |
| Other means | 0.6% |
| Avg commute (minutes) | 23.0 |
Poverty
All people
10.3%
Under 18 years
10.9%
18 and over
10.0%
Married-couple families
3.7%
Female-led households
27.8%
Income support
| Source | % of households |
|---|---|
| Social Security | 45.6% |
| Retirement income | 34.2% |
| Supplemental Security | 3.6% |
| Cash public assistance | 0.7% |
| Food stamps / SNAP | 8.5% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 31.8% |
| High cholesterol | 32.1% |
| Heart disease | 6.6% |
| Stroke | 2.9% |
| Asthma | 9.0% |
| Arthritis | 24.4% |
| Kidney disease | 2.7% |
| Pulmonary disease | 7.9% |
| Cancer | 6.4% |
| Behavior / access | % |
|---|---|
| Binge drinking | 14.3% |
| No physical activity | 23.7% |
| Less than 7 hrs sleep | 30.8% |
| Fair or poor health | 14.5% |
| Poor mental health | 14.0% |
| Poor physical health | 10.4% |
| No health insurance | 11.2% |
| Visited doctor (checkup) | 68.7% |
| Visited dentist | 56.4% |
| Cholesterol screening | 79.9% |
| Teeth loss | 14.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,863 | 14.2% |
| Disability | % |
|---|---|
| Any disability | 22.0% |
| Under 18 | 5.8% |
| 18–64 years | 11.3% |
| 65 and over | 46.1% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 75.5% |
| Public insurance | 39.1% |
| Uninsured under 19 | 2.6% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 33,566 | 95.6% |
| Spanish | 771 | 0.4% |
| Other Indo-European | 273 | 0.1% |
| Asian & Pacific Islander | 303 | 0.2% |
| Other languages | 195 | 0.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 34,696 | 99.3% |
| Born in same state | 34,539 | 99.2% |
| Born in different state | 27,987 | 87.0% |
| Foreign born | 157 | 0.1% |
| Naturalized citizen | 720 | 0.7% |
| Not a US citizen | 119 | 31.5% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 3,437 | 9.7% |
| Arab | 3,124 | 8.8% |
| Italian | 3,116 | 8.8% |
| English | 336 | 0.9% |
| Ancestry | Count | % |
|---|---|---|
| Irish | 110 | 0.3% |
| Polish | 81 | 0.2% |
| Dutch | 62 | 0.2% |
| German | 40 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 43.1% |
| Internet access | 89.5% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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