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Missouri ZIP Codes
Knox County
Newark, MO
63458
63458 ZIP Code — Newark, MO
Knox County, Missouri
ZIP code 63458 is located in
Newark ,
Missouri ,
within Knox County .
It covers approximately 27.34 square miles and serves a population of
85 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 660 .
63458 ZIP code map
View map of 63458
Cities in ZIP code 63458
Below are the cities the US Postal Service accepts for ZIP code 63458. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
85
Population density
3 / sq mi
State FIPS
29
County FIPS
103
Geography
Land area
27.34 sq mi
Water area
0.40 sq mi
Latitude
39.9937
Longitude
-92.0074
Timezone
Central (CT)
Area code
660
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
83.3%
59.8%
43.8%
$50k – $100k
16.7%
26.4%
31.5%
$100k – $200k
0.0%
13.8%
19.5%
Over $200k
0.0%
0.0%
5.2%
Demographics & statistics
$56,250
Median household income
27.4%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 11 12.9%
18 and over 74 87.1%
65 and over 27 31.8%
Median age 40.8 years
Race & ethnicity
Black or African American
15.2%
Group Count %
White 63 68.5%
Black or African American 14 15.2%
Hispanic or Latino 7 7.6%
Other race 7 7.6%
Asian 1 1.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
83.3%
59.8%
43.8%
$50k – $100k
16.7%
26.4%
31.5%
$100k – $200k
0.0%
13.8%
19.5%
Over $200k
0.0%
0.0%
5.2%
Range % of households
Under $10k 4.3%
$10k–$15k 2.1%
$15k–$25k 21.3%
$25k–$35k 10.6%
$35k–$50k 6.4%
$50k–$75k 19.1%
$75k–$100k 34.0%
$150k–$200k 2.1%
Median income $56,250
Housing
Housing overview
Metric Value
Median home value $0
Median rent / month $519
Owner occupied 72.3%
Renter occupied 27.7%
Vacant 63.8%
Single-family detached 82.3%
Large apartment buildings 0.0%
Mobile homes 0.0%
Median rooms 2.8
Avg household size (owned) 1.35
Year built
Era %
2020 or later 0.0%
2010–2019 5.4%
2000–2009 3.8%
1990–1999 9.2%
1980–1989 2.3%
1970–1979 14.6%
1960–1969 10.8%
1950–1959 7.7%
1940–1949 13.8%
1939 or earlier 32.3%
Bedrooms
Size % of units
No bedroom (studio) 50.0%
1 bedroom 4.6%
2 bedrooms 18.5%
3 bedrooms 23.1%
4 bedrooms 3.8%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 12.8%
1 vehicle 27.7%
2 vehicles 55.3%
3 or more 4.3%
Heating fuel
Fuel type %
Electricity 55.3%
Propane / LP gas 23.4%
Fuel oil 2.1%
Wood 19.1%
Households & families
Household type Count %
Married-couple family 14 29.8%
Cohabiting couple 0 0.0%
Male householder, no spouse 18 38.3%
Female householder, no spouse 15 31.9%
Households with children under 18 2 4.3%
Households with seniors (65+) 22 46.8%
Average household size 1.40
Marital status
Status Male Female
Never married 51.2% 0.0%
Married 22.0% 45.7%
Separated 2.4% 0.0%
Widowed 4.9% 5.7%
Divorced 19.5% 48.6%
Education
Some college, no degree
24.2%
Graduate / professional
6.5%
Metric %
HS diploma or higher 90.3%
Bachelor's or higher 27.4%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 0 0.0%
Elementary school 5 26.3%
High school 2 10.5%
College / grad school 12 63.2%
Employment
Industry of employment
Education & healthcare
40.0%
Agriculture & mining
20.0%
Public administration
7.5%
Occupation
Category %
Management, business & arts 37.5%
Service 17.5%
Sales & office 25.0%
Natural resources & construction 15.0%
Production & transportation 5.0%
Employment type
Type %
Private sector 85.0%
Government 10.0%
Self-employed 5.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 75.0%
Carpool 0.0%
Public transit 0.0%
Walk 5.0%
Work from home 20.0%
Other means 0.0%
Avg commute (minutes) 21.4
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households
Social Security 29.8%
Retirement income 31.9%
Supplemental Security 0.0%
Cash public assistance 0.0%
Food stamps / SNAP 12.8%
Health indicators
Condition %
Obesity 36.4%
High blood pressure 34.8%
High cholesterol 36.0%
Diabetes 11.8%
Heart disease 8.2%
Stroke 3.8%
Asthma 9.5%
Arthritis 30.0%
Kidney disease 3.3%
Pulmonary disease 9.8%
Cancer 7.4%
Behavior / access %
Smoking 21.8%
Binge drinking 16.6%
No physical activity 28.0%
Less than 7 hrs sleep 33.0%
Depression 23.5%
Fair or poor health 18.1%
Poor mental health 15.5%
Poor physical health 12.9%
No health insurance 16.9%
Visited doctor (checkup) 73.6%
Visited dentist 57.0%
Cholesterol screening 87.2%
Teeth loss 19.4%
Veterans & disability
Veterans Count %
Civilian veterans 5 6.8%
Disability %
Any disability 22.0%
Under 18 0.0%
18–64 years 14.9%
65 and over 40.7%
Health insurance coverage
Type %
Private insurance 84.1%
Public insurance 40.2%
No insurance 3.7%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 81 95.3%
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) 78 91.8%
Born in same state 78 91.8%
Born in different state 46 54.1%
Foreign born 0 0.0%
Naturalized citizen 7 8.2%
Not a US citizen 7 100.0%
Ancestry
Ancestry Count %
Italian 16 18.8%
French 8 9.4%
Technology access
Metric % of households
Computer access 55.3%
Internet access 87.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 63458
What city is ZIP code 63458 in?
ZIP code 63458 is primarily assigned to Newark, Missouri.
What county is ZIP code 63458 in?
ZIP code 63458 falls within Knox County, Missouri.
Does ZIP code 63458 have an older population?
32% of residents in ZIP code 63458 are 65 or older, above the national average of ~17%.
What is the population of ZIP code 63458?
ZIP code 63458 has an estimated population of 85 residents, with a density of 3 people per square mile.
What is the median household income in ZIP code 63458?
The median household income in ZIP code 63458 is $56,250, below the national median of ~$75,000.
What timezone is ZIP code 63458 in?
ZIP code 63458 observes the CST timezone.
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