66780 ZIP Code — Walnut, KS

Crawford County, Kansas

ZIP code 66780 is located in Walnut, Kansas, within Crawford County. It covers approximately 103.83 square miles and serves a population of 503 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 620.

About ZIP code 66780

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 $157,400. Owner-occupancy is high at 99%, well above the national average.

The gap between median ($78,289) and mean household income suggests income inequality — a small number of higher earners pull the average up. 50% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 29 minutes is near the national average.

College attainment at 10% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 17% of civilians, above the national average of 7%.

Overall, ZIP code 66780 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.

503

population

103.83

sq mi land

Standard

ZIP type

Central (CT)

timezone

66780 ZIP code map

Cities in ZIP code 66780

Below are the cities the US Postal Service accepts for ZIP code 66780. Using any city not on this list may result in mail delivery delays.

City	Status
Walnut	Acceptable
Walnut	Preferred

Nearby ZIP codes

66746 Hepler (5.3 mi) 66775 Stark (9.1 mi) 66743 Girard (9.3 mi) 66771 Saint Paul (9.9 mi) 66733 Erie (12 mi) 66779 Uniontown (13.6 mi) 66753 Mc Cune (14.8 mi) 66740 Galesburg (16.2 mi) 66712 Arma (18 mi) 66711 Arcadia (19.4 mi) 66724 Cherokee (19.4 mi)

Demographics updated 05/2026

Population
Total population	503
Population density	5 / sq mi
State FIPS	20
County FIPS	037

Geography
Land area	103.83 sq mi
Water area	0.46 sq mi
Latitude	37.5801
Longitude	-95.0427
Timezone	Central (CT)
Area code	620

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.5%	57.8%	41.1%
$50k – $100k	45.0%	26.9%	32.2%
$100k – $200k	16.1%	12.9%	21.0%
Over $200k	3.3%	2.4%	5.7%

Demographics & statistics

503

Population

People per sq mi

47.2

Median age

$78,289

Median household income

$40,820

Per capita income

$157,400

Median home value

Median monthly rent

98.6%

Home ownership

10.1%

Poverty rate

3.0%

Unemployment

251

Housing units

10.1%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	109	21.7%
18 and over	394	78.3%
65 and over	141	28.0%
Median age	47.2 years

Race & ethnicity

White 90.9%

Two or more races 9.1%

Group	Count	%
White	457	90.9%
Two or more races	46	9.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.5%	57.8%	41.1%
$50k – $100k	45.0%	26.9%	32.2%
$100k – $200k	16.1%	12.9%	21.0%
Over $200k	3.3%	2.4%	5.7%

Under $10k 4.7%

$10k–$15k 2.4%

$25k–$35k 3.3%

$35k–$50k 6.1%

$50k–$75k 23.6%

$75k–$100k 29.7%

$100k–$150k 5.7%

$150k–$200k 3.8%

$200k+ 20.8%

Range	% of households
Under $10k	4.7%
$10k–$15k	2.4%
$25k–$35k	3.3%
$35k–$50k	6.1%
$50k–$75k	23.6%
$75k–$100k	29.7%
$100k–$150k	5.7%
$150k–$200k	3.8%
$200k+	20.8%
Median income	$78,289

Housing

Home values

Under $50k 37.3%

$50k–$100k 3.8%

$100k–$150k 4.3%

$150k–$200k 15.3%

$200k–$300k 27.3%

$300k–$500k 7.2%

$500k–$1M 1.0%

$1M+ 3.8%

Housing overview

Metric	Value
Median home value	$157,400
Median rent / month	$0
Owner occupied	98.6%
Renter occupied	1.4%
Vacant	16.5%
Single-family detached	72.4%
Large apartment buildings	0.0%
Mobile homes	8.3%
Median rooms	6.4
Avg household size (owned)	2.37

Year built

Era	%
2020 or later	0.0%
2010–2019	10.2%
2000–2009	3.9%
1990–1999	9.1%
1980–1989	8.3%
1970–1979	7.9%
1960–1969	3.9%
1950–1959	0.4%
1940–1949	2.0%
1939 or earlier	54.3%

Bedrooms

Size	% of units
No bedroom (studio)	2.4%
1 bedroom	1.2%
2 bedrooms	18.9%
3 bedrooms	52.0%
4 bedrooms	3.1%
5+ bedrooms	22.4%

Vehicles per household

Vehicles	% of households
No vehicle	6.1%
1 vehicle	10.8%
2 vehicles	32.5%
3 or more	50.5%

Heating fuel

Fuel type	%
Utility gas	41.5%
Electricity	19.8%
Propane / LP gas	37.3%
Wood	1.4%

Households & families

Household type	Count	%
Married-couple family	159	75.0%
Cohabiting couple	12	5.7%
Male householder, no spouse	12	5.7%
Female householder, no spouse	29	13.7%
Households with children under 18	58	27.4%
Households with seniors (65+)	101	47.6%
Average household size	2.37

Marital status

Status	Male	Female
Never married	27.0%	18.3%
Married	63.5%	67.5%
Separated	1.7%	0.0%
Widowed	1.2%	11.0%
Divorced	6.6%	3.1%

Education

Less than 9th grade 1.1%

Some HS, no diploma 2.0%

HS graduate 47.1%

Some college, no degree 35.6%

Associate's degree 4.2%

Bachelor's degree 3.4%

Graduate / professional 6.7%

Metric	%
HS diploma or higher	96.9%
Bachelor's or higher	10.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	4	5.1%
Elementary school	36	46.2%
High school	38	48.7%
College / grad school	0	0.0%

Employment

Industry of employment

Manufacturing 24.6%

Education & healthcare 22.4%

Finance & real estate 10.1%

Public administration 10.1%

Agriculture & mining 7.0%

Retail trade 5.7%

Construction 5.3%

Wholesale trade 4.8%

Other services 3.9%

Arts, food & hospitality 3.1%

Professional & management 1.8%

Transportation & utilities 1.3%

Occupation

Category	%
Management, business & arts	44.7%
Service	13.6%
Sales & office	7.0%
Natural resources & construction	11.8%
Production & transportation	22.8%

Employment type

Type	%
Private sector	73.2%
Government	18.9%
Self-employed	7.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	39.5%
Carpool	43.4%
Public transit	0.0%
Walk	0.0%
Work from home	17.1%
Other means	0.0%
Avg commute (minutes)	29.3

Poverty

All people 10.1%

Under 18 years 10.1%

18 and over 10.2%

Married-couple families 1.9%

Female-led households 52.9%

Income support

Source	% of households
Social Security	50.0%
Retirement income	34.9%
Supplemental Security	6.1%
Cash public assistance	0.9%
Food stamps / SNAP	7.5%

Health indicators

Condition	%
Obesity	36.5%
High blood pressure	36.6%
High cholesterol	35.4%
Diabetes	10.8%
Heart disease	7.5%
Stroke	3.2%
Asthma	9.1%
Arthritis	26.9%
Kidney disease	3.1%
Pulmonary disease	7.2%
Cancer	7.6%

Behavior / access	%
Smoking	19.1%
Binge drinking	18.1%
No physical activity	23.0%
Less than 7 hrs sleep	32.0%
Depression	19.2%
Fair or poor health	13.7%
Poor mental health	13.3%
Poor physical health	10.3%
No health insurance	13.5%
Visited doctor (checkup)	75.3%
Visited dentist	63.9%
Cholesterol screening	89.7%
Teeth loss	13.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	65	16.5%

Disability	%
Any disability	13.5%
Under 18	3.7%
18–64 years	15.4%
65 and over	17.7%

Health insurance coverage

Type	%
Private insurance	73.2%
Public insurance	39.6%
No insurance	10.5%
Uninsured under 19	8.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	473	94.0%
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)	503	100.0%
Born in same state	503	100.0%
Born in different state	390	77.5%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	97	19.3%
Arab	82	16.3%
French	17	3.4%

Ancestry	Count	%
English	15	3%
German	2	0.4%

Technology access

Metric	% of households
Computer access	42.1%
Internet access	94.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 66780

What city is ZIP code 66780 in?

ZIP code 66780 is primarily assigned to Walnut, Kansas.

What county is ZIP code 66780 in?

ZIP code 66780 falls within Bourbon County, Kansas.

Is ZIP code 66780 mostly owner-occupied?

99% of occupied units in ZIP code 66780 are owner-occupied, well above the national average.

Does ZIP code 66780 have an older population?

28% of residents in ZIP code 66780 are 65 or older, above the national average of ~17%.

Does ZIP code 66780 have a large retiree population?

50% of households in ZIP code 66780 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 66780?

10% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What timezone is ZIP code 66780 in?

ZIP code 66780 observes the CST timezone.