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Missouri ZIP Codes
Atchison County
Tarkio, MO
64491
64491 ZIP Code — Tarkio, MO
Atchison County, Missouri
ZIP code 64491 is located in
Tarkio ,
Missouri ,
within Atchison County .
It covers approximately 115.53 square miles and serves a population of
1,652 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 660 .
About ZIP code 64491
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 $85,400. Owner-occupancy sits near the national average at 70%.
Median household income is $57,863. 42% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.
Educational attainment is near the national average, with 21% of residents holding a bachelor's degree or higher.
64491 ZIP code map
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Cities in ZIP code 64491
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
1,652
Population density
14 / sq mi
State FIPS
29
County FIPS
005
Geography
Land area
115.53 sq mi
Water area
0.04 sq mi
Latitude
40.4369
Longitude
-95.3207
Timezone
Central (CT)
Area code
660
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
49.1%
47.7%
43.8%
$50k – $100k
35.3%
33.9%
31.5%
$100k – $200k
13.5%
15.1%
19.5%
Over $200k
2.1%
3.3%
5.2%
Demographics & statistics
$57,863
Median household income
21.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 293 17.7%
18 and over 1,359 82.3%
65 and over 446 27.0%
Median age 48.8 years
Race & ethnicity
Black or African American
0.3%
American Indian / Alaska Native
0.1%
Group Count %
White 1,556 89.9%
Hispanic or Latino 78 4.5%
Two or more races 73 4.2%
Other race 16 0.9%
Black or African American 6 0.3%
American Indian / Alaska Native 1 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
49.1%
47.7%
43.8%
$50k – $100k
35.3%
33.9%
31.5%
$100k – $200k
13.5%
15.1%
19.5%
Over $200k
2.1%
3.3%
5.2%
Range % of households
Under $10k 4.9%
$10k–$15k 4.8%
$15k–$25k 13.9%
$25k–$35k 8.5%
$35k–$50k 11.1%
$50k–$75k 24.6%
$75k–$100k 10.0%
$100k–$150k 15.6%
$150k–$200k 4.4%
$200k+ 2.1%
Median income $57,863
Housing
Housing overview
Metric Value
Median home value $85,400
Median rent / month $615
Owner occupied 70.0%
Renter occupied 30.0%
Vacant 15.9%
Single-family detached 80.0%
Large apartment buildings 2.4%
Mobile homes 4.4%
Median rooms 6.0
Avg household size (owned) 2.20
Year built
Era %
2020 or later 0.0%
2010–2019 0.3%
2000–2009 2.5%
1990–1999 7.5%
1980–1989 7.6%
1970–1979 14.7%
1960–1969 13.7%
1950–1959 10.3%
1940–1949 5.8%
1939 or earlier 37.5%
Bedrooms
Size % of units
No bedroom (studio) 1.2%
1 bedroom 12.3%
2 bedrooms 26.9%
3 bedrooms 40.5%
4 bedrooms 15.2%
5+ bedrooms 3.8%
Vehicles per household
Vehicles % of households
No vehicle 7.2%
1 vehicle 40.7%
2 vehicles 28.4%
3 or more 23.6%
Heating fuel
Fuel type %
Utility gas 51.0%
Electricity 39.8%
Propane / LP gas 8.3%
Fuel oil 0.9%
Households & families
Household type Count %
Married-couple family 323 43.1%
Cohabiting couple 63 8.4%
Male householder, no spouse 125 16.7%
Female householder, no spouse 238 31.8%
Households with children under 18 144 19.2%
Households with seniors (65+) 293 39.1%
Average household size 2.14
Marital status
Status Male Female
Never married 29.0% 22.2%
Married 53.9% 47.4%
Separated 2.1% 0.7%
Widowed 1.7% 16.0%
Divorced 13.3% 13.7%
Education
Some college, no degree
25.8%
Graduate / professional
5.0%
Metric %
HS diploma or higher 89.8%
Bachelor's or higher 21.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 39 12.7%
Kindergarten 6 2.0%
Elementary school 124 40.4%
High school 93 30.3%
College / grad school 45 14.7%
Employment
Industry of employment
Education & healthcare
24.0%
Professional & management
11.5%
Transportation & utilities
9.8%
Agriculture & mining
7.2%
Finance & real estate
6.6%
Public administration
5.3%
Arts, food & hospitality
3.6%
Occupation
Category %
Management, business & arts 23.9%
Service 26.6%
Sales & office 21.1%
Natural resources & construction 10.3%
Production & transportation 18.1%
Employment type
Type %
Private sector 69.9%
Government 19.8%
Self-employed 10.3%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 82.5%
Carpool 9.7%
Public transit 2.6%
Walk 2.0%
Work from home 2.2%
Other means 1.1%
Avg commute (minutes) 21.9
Poverty
Married-couple families
6.8%
Female-led households
37.7%
Income support
Source % of households
Social Security 42.2%
Retirement income 22.7%
Supplemental Security 7.5%
Cash public assistance 1.5%
Food stamps / SNAP 6.9%
Health indicators
Condition %
Obesity 35.8%
High blood pressure 36.7%
High cholesterol 36.5%
Diabetes 11.9%
Heart disease 8.7%
Stroke 3.9%
Asthma 9.4%
Arthritis 31.9%
Kidney disease 3.4%
Pulmonary disease 9.6%
Cancer 8.5%
Behavior / access %
Smoking 20.0%
Binge drinking 15.9%
No physical activity 27.0%
Less than 7 hrs sleep 32.3%
Depression 23.1%
Fair or poor health 17.5%
Poor mental health 14.7%
Poor physical health 12.7%
No health insurance 15.1%
Visited doctor (checkup) 76.1%
Visited dentist 59.6%
Cholesterol screening 89.9%
Teeth loss 17.9%
Veterans & disability
Veterans Count %
Civilian veterans 99 7.3%
Disability %
Any disability 21.8%
Under 18 4.4%
18–64 years 19.4%
65 and over 39.2%
Health insurance coverage
Type %
Private insurance 63.1%
Public insurance 39.8%
No insurance 14.4%
Uninsured under 19 12.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 1,574 95.3%
Spanish 3 0.2%
Other Indo-European 3 0.2%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 1,648 99.8%
Born in same state 1,640 99.3%
Born in different state 1,131 68.5%
Foreign born 8 0.5%
Naturalized citizen 4 0.2%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Italian 297 18%
French 215 13%
Arab 158 9.6%
Ancestry Count %
English 26 1.6%
Polish 11 0.7%
Technology access
Metric % of households
Computer access 45.3%
Internet access 87.3%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 64491
What city is ZIP code 64491 in?
ZIP code 64491 is primarily assigned to Tarkio, Missouri.
What county is ZIP code 64491 in?
ZIP code 64491 falls within Atchison County, Missouri.
Does ZIP code 64491 have an older population?
27% of residents in ZIP code 64491 are 65 or older, above the national average of ~17%.
Does ZIP code 64491 have a large retiree population?
42% of households in ZIP code 64491 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 64491?
The median home value in ZIP code 64491 is $85,400.
What is the population of ZIP code 64491?
ZIP code 64491 has an estimated population of 1,652 residents, with a density of 14 people per square mile.
What timezone is ZIP code 64491 in?
ZIP code 64491 observes the CST timezone.
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