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Kansas ZIP Codes
Washington County
Haddam, KS
66944
66944 ZIP Code — Haddam, KS
Washington County, Kansas
ZIP code 66944 is located in
Haddam ,
Kansas ,
within Washington County .
It covers approximately 93.20 square miles and serves a population of
321 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 785 .
About ZIP code 66944
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 $227,400. Owner-occupancy is high at 98%, well above the national average.
The gap between median ($80,781) and mean household income suggests income inequality — a small number of higher earners pull the average up.
The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. An above-average commute of 41 minutes suggests many residents work outside the immediate area. Remote work is prevalent — 23% of workers work from home.
Educational attainment is high — 52% of residents hold a bachelor's degree or higher, well above the national average of 33%.
Notable community characteristics include a notable veteran presence at 26% of civilians, above the national average of 7%.
Overall, ZIP code 66944 reflects a community defined by a highly educated population, a strong veteran community, high homeownership, and a high rate of remote workers.
66944 ZIP code map
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Cities in ZIP code 66944
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
321
Population density
3 / sq mi
State FIPS
20
County FIPS
201
Geography
Land area
93.20 sq mi
Water area
0.21 sq mi
Latitude
39.8279
Longitude
-97.2846
Timezone
Central (CT)
Area code
785
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
18.0%
49.4%
41.1%
$50k – $100k
53.9%
36.9%
32.2%
$100k – $200k
5.5%
11.2%
21.0%
Over $200k
22.7%
2.5%
5.7%
Demographics & statistics
$80,781
Median household income
$227,400
Median home value
52.3%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 80 24.9% 18 and over 241 75.1% 65 and over 89 27.7% Median age 60.3 years
Race & ethnicity
Household income
Income range
This ZIP
County avg
State avg
Under $50k
18.0%
49.4%
41.1%
$50k – $100k
53.9%
36.9%
32.2%
$100k – $200k
5.5%
11.2%
21.0%
Over $200k
22.7%
2.5%
5.7%
Range % of households Under $10k 1.0% $10k–$15k 2.0% $15k–$25k 4.0% $25k–$35k 10.9% $50k–$75k 29.7% $75k–$100k 23.8% $100k–$150k 4.0% $200k+ 24.8% Median income $80,781
Housing
Housing overview
Metric Value Median home value $227,400 Median rent / month $0 Owner occupied 98.0% Renter occupied 2.0% Vacant 24.1% Single-family detached 96.2% Large apartment buildings 0.0% Mobile homes 3.8% Median rooms 5.8 Avg household size (owned) 3.21
Year built
Era % 2020 or later 0.0% 2010–2019 16.5% 2000–2009 9.0% 1990–1999 0.0% 1980–1989 9.0% 1970–1979 2.3% 1960–1969 3.8% 1950–1959 1.5% 1940–1949 6.0% 1939 or earlier 51.9%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 3.8% 2 bedrooms 60.9% 3 bedrooms 10.5% 4 bedrooms 24.8% 5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households No vehicle 2.0% 1 vehicle 19.8% 2 vehicles 25.7% 3 or more 52.5%
Heating fuel
Fuel type % Utility gas 35.6% Electricity 4.0% Propane / LP gas 60.4%
Households & families
Household type Count % Married-couple family 70 69.3% Cohabiting couple 6 5.9% Male householder, no spouse 13 12.9% Female householder, no spouse 12 11.9% Households with children under 18 30 29.7% Households with seniors (65+) 30 29.7% Average household size 3.18
Marital status
Status Male Female Never married 4.5% 11.4% Married 46.8% 73.9% Separated 0.0% 0.0% Widowed 0.6% 13.6% Divorced 48.1% 1.1%
Education
Some college, no degree
35.0%
Graduate / professional
27.4%
Metric % HS diploma or higher 98.3% Bachelor's or higher 52.3%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 36 56.3% Kindergarten 3 4.7% Elementary school 24 37.5% High school 1 1.6% College / grad school 0 0.0%
Employment
Industry of employment
Agriculture & mining
24.0%
Education & healthcare
16.3%
Transportation & utilities
10.6%
Finance & real estate
4.8%
Arts, food & hospitality
1.0%
Occupation
Category % Management, business & arts 58.7% Service 0.0% Sales & office 8.7% Natural resources & construction 1.0% Production & transportation 31.7%
Employment type
Type % Private sector 44.2% Government 16.3% Self-employed 36.5% Unpaid family workers 2.9%
Commute
Method % Drive alone 56.7% Carpool 9.6% Public transit 0.0% Walk 0.0% Work from home 23.1% Other means 10.6% Avg commute (minutes) 41.1
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households Social Security 18.8% Retirement income 12.9% Supplemental Security 0.0% Cash public assistance 0.0% Food stamps / SNAP 5.0%
Health indicators
Condition % Obesity 39.9% High blood pressure 41.7% High cholesterol 40.3% Diabetes 13.9% Heart disease 9.5% Stroke 4.2% Asthma 9.3% Arthritis 33.2% Kidney disease 3.9% Pulmonary disease 9.0% Cancer 9.8%
Behavior / access % Smoking 17.6% Binge drinking 14.3% No physical activity 26.5% Less than 7 hrs sleep 30.9% Depression 17.8% Fair or poor health 16.3% Poor mental health 12.2% Poor physical health 12.0% No health insurance 13.1% Visited doctor (checkup) 78.3% Visited dentist 63.3% Cholesterol screening 92.0% Teeth loss 14.2%
Veterans & disability
Veterans Count % Civilian veterans 62 25.7%
Disability % Any disability 5.6% Under 18 1.3% 18–64 years 4.6% 65 and over 11.2%
Health insurance coverage
Type % Private insurance 65.1% Public insurance 35.8% No insurance 0.9% Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 305 95.0% 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) 321 100.0% Born in same state 321 100.0% Born in different state 192 59.8% Foreign born 0 0.0% Naturalized citizen 0 0.0% Not a US citizen 0 0.0%
Ancestry
Ancestry Count % French 122 38% Italian 79 24.6%
Technology access
Metric % of households Computer access 31.5% Internet access 95.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 66944
What city is ZIP code 66944 in?
ZIP code 66944 is primarily assigned to Haddam, Kansas.
What county is ZIP code 66944 in?
ZIP code 66944 falls within Washington County, Kansas.
Is ZIP code 66944 mostly owner-occupied?
98% of occupied units in ZIP code 66944 are owner-occupied, well above the national average.
Does ZIP code 66944 have an older population?
28% of residents in ZIP code 66944 are 65 or older, above the national average of ~17%.
Does ZIP code 66944 have a large veteran population?
26% of civilians in ZIP code 66944 are veterans, above the national average of ~7%.
How educated is the population of ZIP code 66944?
52% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What timezone is ZIP code 66944 in?
ZIP code 66944 observes the CST timezone.
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