Postal Codes

66780 ZIP Code

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ZIP code 66780 covers Walnut, Kansas, with a population of about 624 and a median household income of $80,443.

Population
6246 per square mile
Median age
47.48.7 points above the US average
Median household income
$80,4431.1× the Kansas median
Poverty rate
13.8%1.4 points above the US average
Degree or higher
8%27 points below the US average
Homeownership
96.6%31.6 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
6

Where 66780 is

Walnut, Kansas — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population624
Median age47.4
Family households78.5%
Born outside the US0%
Speaks a language other than English at home0.8%
White (non-Hispanic)92.6%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino0%
Veterans15%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$80,443
Income per person$38,071
Poverty rate13.8%
Households on SNAP or cash assistance8.4%

Household income distribution

Under $10k3.8%
$10–15k1.9%
$15–20k0.0%
$20–25k10.0%
$25–30k0.4%
$30–35k3.4%
$35–40k1.9%
$40–45k0.0%
$45–50k3.4%
$50–60k14.9%
$60–75k3.4%
$75–100k29.5%
$100–125k2.3%
$125–150k1.1%
$150–200k6.5%
$200k or more17.2%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed250
Mean adjusted gross income$53,020
Returns declaring $200,000 or more0%
Returns, under $25k32.0%
Returns, $25k–$50k24.0%
Returns, $50k–$75k20.0%
Returns, $75k–$100k12.0%
Returns, $100k–$200k12.0%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Owner-occupied96.6%
Vacant homes11.8%
Median year built1938

What the homes are

Detached house74.7%
Attached house14.5%
5 to 19 units4.4%
Mobile home6.4%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.1%
Bachelor's degree or higher8%
High school diploma or higher96.1%
Works from home19.2%
Drives to work alone41.6%
Takes public transport0%
Commutes 45 minutes or more14.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity38.9% 5.5 pts above the national average of 33.4%
Diagnosed diabetes12.6% 0.6 pts above the national average of 12%
Currently smokes17.8% 4.6 pts above the national average of 13.2%
High blood pressure39.2% 5.1 pts above the national average of 34.1%
Fair or poor general health20.1% same as the national average of 20.3%
No health insurance (18–64)8.3% 3 pts below the national average of 11.3%
Depression22% same as the national average of 21.9%
No leisure-time physical activity28.4% 3 pts above the national average of 25.4%
Arthritis31.4% 6.3 pts above the national average of 25.1%
Binge drinking15.3% 0.7 pts below the national average of 16%
Taking blood pressure medication80.4% 5.7 pts above the national average of 74.7%
Cancer (non-skin)9.7% 2 pts above the national average of 7.7%
Current asthma10.7% same as the national average of 10.4%
Coronary heart disease7.7% 1.5 pts above the national average of 6.2%
Routine check-up in past year78% 1.3 pts above the national average of 76.7%
Cholesterol screening85.4% 0.5 pts below the national average of 85.9%
Cognitive disability15.6% 0.8 pts above the national average of 14.8%
Colorectal screening61.5% 2.8 pts below the national average of 64.3%
COPD8.9% 2.3 pts above the national average of 6.6%
Visited a dentist60.9% same as the national average of 61.3%
Any disability34.1% 3.4 pts above the national average of 30.7%
Lacks emotional support20.1% 4.7 pts below the national average of 24.8%
Food insecurity12.9% 4.2 pts below the national average of 17.1%
Received food stamps8.4% 5.9 pts below the national average of 14.3%
Hearing disability8.8% 2.1 pts above the national average of 6.7%
High cholesterol39.7% 3.5 pts above the national average of 36.2%
Housing insecurity10.9% 2.9 pts below the national average of 13.8%
Independent living disability8.9% 0.5 pts above the national average of 8.4%
Lacks transport7.1% 2.1 pts below the national average of 9.2%
Loneliness31.9% 2.5 pts below the national average of 34.4%
Mammography use71.8% 4.1 pts below the national average of 75.9%
Poor mental health (14+ days)17.1% same as the national average of 16.8%
Mobility disability16.5% 2.5 pts above the national average of 14%
Poor physical health (14+ days)14.8% 1.3 pts above the national average of 13.5%
Self-care disability4.2% same as the national average of 4%
Utility shut-off threat8.8% same as the national average of 8.8%
Sleeps under 7 hours34.8% 1.6 pts below the national average of 36.4%
Stroke3.9% 0.5 pts above the national average of 3.4%
All natural teeth lost14% 1 pts above the national average of 13%
Vision disability5% 0.6 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments6
People employed19
Annual payroll$753,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 90.8% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss90.8 out of 100
Community resilience48.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought98.9Very High at its worst in this ZIP code
Strong wind97.4Very High at its worst in this ZIP code
Winter weather96.6Very High at its worst in this ZIP code
Ice storm96.2Relatively High at its worst in this ZIP code
Tornado94.2Very High at its worst in this ZIP code
Cold wave92.5Very High at its worst in this ZIP code
Hail89.8Relatively High at its worst in this ZIP code
River flooding89.2Relatively High at its worst in this ZIP code
Lightning86.1Relatively High at its worst in this ZIP code
Heat wave85.7Relatively High at its worst in this ZIP code
Landslide84.2Relatively Low at its worst in this ZIP code
Wildfire78.9Relatively Low at its worst in this ZIP code
Earthquake61.5Relatively Low at its worst in this ZIP code
Hurricane44.8Very Low at its worst in this ZIP code
Compared with Kansas and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPKansasUnited States
Median household income$80,443$72,639$78,538
Income per person$38,071$39,638$43,289
Poverty rate13.8%11.5%12.4%
Median home value$203,400$303,400
Median gross rent$1,029$1,348
Homeownership96.6%66.9%65%
Bachelor's degree or higher8%35.2%35%
Unemployment rate2.1%3.9%5.2%
Works from home19.2%10.7%13.5%
Born outside the US0%7.2%13.9%
Median age47.437.238.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationGIRARD, KS US20.7 km away
Rain in a year46 in
Snow in a year6 in

Average high and low by month

January41.6°F / 22.3°F1.77 in rain, 2.6 in snow
February46.9°F / 26.2°F1.9 in rain, 0.4 in snow
March57.3°F / 35.5°F3.48 in rain, 0.9 in snow
April67°F / 45.2°F4.83 in rain
May75.9°F / 55.8°F6.45 in rain
June85.2°F / 65.2°F5.43 in rain
July89.8°F / 69.4°F3.93 in rain
August89.2°F / 67.5°F3.88 in rain
September81°F / 58.8°F4.84 in rain
October69.3°F / 46.9°F3.76 in rain
November56.1°F / 35.4°F3.03 in rain, 0.7 in snow
December45.1°F / 26.5°F2.31 in rain, 1.6 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 4 school districts, so the address decides which one, not the ZIP code.

Girard Unified School District 24865.1% of this ZIP code's land area
Erie-Galesburg Unified School District 10116.5% of this ZIP code's land area
Uniontown Unified School District 2359.8% of this ZIP code's land area
Chetopa-St. Paul Unified School District 5058.6% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability45more vulnerable than 45% of US census tracts
Socioeconomic status51more vulnerable than 51% of US census tracts
Household characteristics42more vulnerable than 42% of US census tracts
Racial and ethnic minority status13more vulnerable than 13% of US census tracts
Housing type and transport54more vulnerable than 54% of US census tracts
Walkability4.4 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

66746 Hepler, KS8.4 km away
66775 Stark, KS12.5 km away
66771 Saint Paul, KS14 km away
66734 Farlington, KS17.5 km away
66733 Erie, KS18.2 km away
66743 Girard, KS19.3 km away
66772 Savonburg, KS19.7 km away
66732 Elsmore, KS24.9 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Crawford County62.8% of this ZIP code's land area
Neosho County27.3% of this ZIP code's land area
Bourbon County9.8% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area103.83 sq mi
Water area0.46 sq mi
Population density6 people per sq mi
Latitude, longitude37.5967, -95.0455

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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