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Kansas ZIP Codes
Marshall County
Vermillion, KS
66544
66544 ZIP Code — Vermillion, KS
Marshall County, Kansas
ZIP code 66544 is located in
Vermillion ,
Kansas ,
within Marshall County .
It covers approximately 90.13 square miles and serves a population of
304 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 785 .
About ZIP code 66544
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 $68,500. Owner-occupancy is high at 93%, well above the national average.
Median household income is $78,295. The poverty rate of 6% is below the national average. 38% 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. The average commute of 32 minutes is near the national average.
College attainment at 11% is below the national average, consistent with a trades and production-oriented local economy.
Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%.
Overall, ZIP code 66544 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
66544 ZIP code map
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Cities in ZIP code 66544
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Demographics
updated 05/2026
Population
Total population
304
Population density
3 / sq mi
State FIPS
20
County FIPS
117
Geography
Land area
90.13 sq mi
Water area
0.81 sq mi
Latitude
39.6967
Longitude
-96.2731
Timezone
Central (CT)
Area code
785
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
49.7%
46.5%
41.1%
$50k – $100k
42.3%
35.6%
32.2%
$100k – $200k
8.1%
15.0%
21.0%
Over $200k
0.0%
2.9%
5.7%
Demographics & statistics
$78,295
Median household income
10.7%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 39 12.8% 18 and over 265 87.2% 65 and over 73 24.0% Median age 56.1 years
Race & ethnicity
American Indian / Alaska Native
0.7%
Group Count % White 302 99.3% American Indian / Alaska Native 2 0.7%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
49.7%
46.5%
41.1%
$50k – $100k
42.3%
35.6%
32.2%
$100k – $200k
8.1%
15.0%
21.0%
Over $200k
0.0%
2.9%
5.7%
Range % of households Under $10k 2.2% $10k–$15k 4.4% $15k–$25k 5.9% $25k–$35k 3.0% $35k–$50k 15.6% $50k–$75k 16.3% $75k–$100k 22.2% $100k–$150k 12.6% $150k–$200k 16.3% $200k+ 1.5% Median income $78,295
Housing
Housing overview
Metric Value Median home value $68,500 Median rent / month $706 Owner occupied 93.3% Renter occupied 6.7% Vacant 13.5% Single-family detached 78.2% Large apartment buildings 2.6% Mobile homes 18.6% Median rooms 6.4 Avg household size (owned) 2.34
Year built
Era % 2020 or later 0.0% 2010–2019 9.0% 2000–2009 1.3% 1990–1999 1.9% 1980–1989 0.6% 1970–1979 27.6% 1960–1969 0.0% 1950–1959 3.8% 1940–1949 7.7% 1939 or earlier 48.1%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 4.5% 2 bedrooms 37.8% 3 bedrooms 32.1% 4 bedrooms 21.2% 5+ bedrooms 4.5%
Vehicles per household
Vehicles % of households No vehicle 6.7% 1 vehicle 16.3% 2 vehicles 16.3% 3 or more 60.7%
Heating fuel
Fuel type % Utility gas 28.9% Electricity 8.1% Propane / LP gas 61.5% Wood 1.5%
Households & families
Household type Count % Married-couple family 90 66.7% Cohabiting couple 5 3.7% Male householder, no spouse 22 16.3% Female householder, no spouse 18 13.3% Households with children under 18 26 19.3% Households with seniors (65+) 45 33.3% Average household size 2.25
Marital status
Status Male Female Never married 14.0% 22.4% Married 69.0% 65.0% Separated 0.0% 0.0% Widowed 4.7% 4.2% Divorced 12.4% 8.4%
Education
Some college, no degree
29.8%
Graduate / professional
0.8%
Metric % HS diploma or higher 90.9% Bachelor's or higher 10.7%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 1 1.7% Kindergarten 0 0.0% Elementary school 24 41.4% High school 27 46.6% College / grad school 6 10.3%
Employment
Industry of employment
Education & healthcare
29.7%
Agriculture & mining
17.4%
Transportation & utilities
14.2%
Public administration
5.8%
Professional & management
5.2%
Finance & real estate
0.6%
Occupation
Category % Management, business & arts 47.7% Service 13.5% Sales & office 15.5% Natural resources & construction 3.9% Production & transportation 19.4%
Employment type
Type % Private sector 43.9% Government 35.5% Self-employed 20.6% Unpaid family workers 0.0%
Commute
Method % Drive alone 84.3% Carpool 3.9% Public transit 0.0% Walk 5.2% Work from home 6.5% Other means 0.0% Avg commute (minutes) 32.3
Poverty
Married-couple families
1.1%
Female-led households
0.0%
Income support
Source % of households Social Security 37.8% Retirement income 23.0% Supplemental Security 1.5% Cash public assistance 0.0% Food stamps / SNAP 1.5%
Health indicators
Condition % Obesity 35.9% High blood pressure 40.7% High cholesterol 38.8% Diabetes 12.3% Heart disease 8.8% Stroke 3.7% Asthma 9.0% Arthritis 29.0% Kidney disease 3.5% Pulmonary disease 7.9% Cancer 8.9%
Behavior / access % Smoking 17.2% Binge drinking 15.5% No physical activity 24.6% Less than 7 hrs sleep 29.7% Depression 17.6% Fair or poor health 14.3% Poor mental health 12.3% Poor physical health 10.7% No health insurance 13.1% Visited doctor (checkup) 76.5% Visited dentist 65.3% Cholesterol screening 91.1% Teeth loss 13.2%
Veterans & disability
Veterans Count % Civilian veterans 31 11.7%
Disability % Any disability 5.9% Under 18 2.6% 18–64 years 3.1% 65 and over 15.1%
Health insurance coverage
Type % Private insurance 92.1% Public insurance 27.3% No insurance 2.3% Uninsured under 19 1.6%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 297 97.7% 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) 303 99.7% Born in same state 303 99.7% Born in different state 261 85.9% Foreign born 0 0.0% Naturalized citizen 1 0.3% Not a US citizen 1 100.0%
Ancestry
Ancestry Count % Italian 18 5.9% French 16 5.3%
Ancestry Count % Arab 13 4.3% English 5 1.6%
Technology access
Metric % of households Computer access 44.4% Internet access 93.3%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 66544
What city is ZIP code 66544 in?
ZIP code 66544 is primarily assigned to Vermillion, Kansas.
What county is ZIP code 66544 in?
ZIP code 66544 falls within Marshall County, Kansas.
Is ZIP code 66544 mostly owner-occupied?
93% of occupied units in ZIP code 66544 are owner-occupied, well above the national average.
How educated is the population of ZIP code 66544?
11% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
Does ZIP code 66544 have a large retiree population?
38% of households in ZIP code 66544 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 66544 have a large veteran population?
12% of civilians in ZIP code 66544 are veterans, above the national average of ~7%.
What timezone is ZIP code 66544 in?
ZIP code 66544 observes the CST timezone.
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