66451 ZIP Code — Lyndon, KS

Osage County, Kansas

ZIP code 66451 is located in Lyndon, Kansas, within Osage County. It covers approximately 78.19 square miles and serves a population of 1,834 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 785.

About ZIP code 66451

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 $150,800. Owner-occupancy is high at 88%, well above the national average.

Median household income is $71,750. The poverty rate of 6% is below the national average. 37% 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 27 minutes is near the national average.

Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.

Overall, ZIP code 66451 reflects a community defined by high homeownership and a significant Social Security-dependent population.

1,834

population

78.19

sq mi land

Standard

ZIP type

Central (CT)

timezone

66451 ZIP code map

Cities in ZIP code 66451

Below are the cities the US Postal Service accepts for ZIP code 66451. Using any city not on this list may result in mail delivery delays.

City	Status
Lyndon	Preferred

Nearby ZIP codes

66543 Vassar (4.9 mi) 66528 Quenemo (6.9 mi) 66510 Melvern (10.5 mi) 66537 Scranton (10.6 mi) 66523 Osage City (11.1 mi) 66414 Carbondale (12.2 mi) 66076 Pomona (12.8 mi) 66413 Burlingame (13.5 mi) 66524 Overbrook (14.3 mi) 66095 Williamsburg (16.9 mi) 66856 Lebo (17.3 mi) 66546 Wakarusa (18.4 mi)

Demographics updated 05/2026

Population
Total population	1,834
Population density	23 / sq mi
State FIPS	20
County FIPS	139

Geography
Land area	78.19 sq mi
Water area	3.87 sq mi
Latitude	38.6449
Longitude	-95.6562
Timezone	Central (CT)
Area code	785

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.5%	43.4%	41.1%
$50k – $100k	33.4%	36.7%	32.2%
$100k – $200k	17.7%	17.3%	21.0%
Over $200k	4.3%	2.6%	5.7%

Demographics & statistics

1,834

Population

People per sq mi

39.3

Median age

$71,750

Median household income

$33,456

Per capita income

$150,800

Median home value

$750

Median monthly rent

87.6%

Home ownership

6.1%

Poverty rate

1.0%

Unemployment

688

Housing units

26.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

109

122

45–54

137

55–59

60–64

101

65–74

113

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	490	26.7%
18 and over	1,344	73.3%
65 and over	319	17.4%
Median age	39.3 years

Race & ethnicity

White 96.3%

Black or African American 2%

Two or more races 1.6%

American Indian / Alaska Native 0.1%

Asian 0.1%

Group	Count	%
White	1,766	96.3%
Black or African American	36	2%
Two or more races	29	1.6%
American Indian / Alaska Native	2	0.1%
Asian	1	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.5%	43.4%	41.1%
$50k – $100k	33.4%	36.7%	32.2%
$100k – $200k	17.7%	17.3%	21.0%
Over $200k	4.3%	2.6%	5.7%

Under $10k 1.9%

$10k–$15k 0.6%

$15k–$25k 4.9%

$25k–$35k 4.2%

$35k–$50k 12.9%

$50k–$75k 27.0%

$75k–$100k 19.8%

$100k–$150k 14.5%

$150k–$200k 5.7%

$200k+ 8.5%

Range	% of households
Under $10k	1.9%
$10k–$15k	0.6%
$15k–$25k	4.9%
$25k–$35k	4.2%
$35k–$50k	12.9%
$50k–$75k	27.0%
$75k–$100k	19.8%
$100k–$150k	14.5%
$150k–$200k	5.7%
$200k+	8.5%
Median income	$71,750

Housing

Home values

Under $50k 8.8%

$50k–$100k 18.1%

$100k–$150k 22.8%

$150k–$200k 14.9%

$200k–$300k 21.7%

$300k–$500k 10.4%

$500k–$1M 2.7%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$150,800
Median rent / month	$750
Owner occupied	87.6%
Renter occupied	12.4%
Vacant	17.1%
Single-family detached	88.1%
Large apartment buildings	0.0%
Mobile homes	7.2%
Median rooms	6.3
Avg household size (owned)	2.96

Year built

Era	%
2020 or later	0.3%
2010–2019	3.9%
2000–2009	7.0%
1990–1999	12.8%
1980–1989	3.1%
1970–1979	14.1%
1960–1969	11.6%
1950–1959	5.0%
1940–1949	6.6%
1939 or earlier	35.6%

Bedrooms

Size	% of units
No bedroom (studio)	2.7%
1 bedroom	6.4%
2 bedrooms	20.3%
3 bedrooms	42.1%
4 bedrooms	17.1%
5+ bedrooms	11.3%

Vehicles per household

Vehicles	% of households
No vehicle	1.4%
1 vehicle	16.0%
2 vehicles	37.6%
3 or more	45.0%

Heating fuel

Fuel type	%
Utility gas	48.0%
Electricity	27.8%
Propane / LP gas	18.4%
Wood	5.2%

Households & families

Household type	Count	%
Married-couple family	389	61.2%
Cohabiting couple	84	13.2%
Male householder, no spouse	65	10.2%
Female householder, no spouse	98	15.4%
Households with children under 18	214	33.6%
Households with seniors (65+)	218	34.3%
Average household size	2.85

Marital status

Status	Male	Female
Never married	32.4%	22.6%
Married	52.2%	56.1%
Separated	0.6%	0.0%
Widowed	2.2%	3.7%
Divorced	12.6%	17.6%

Education

Less than 9th grade 1.0%

Some HS, no diploma 2.8%

HS graduate 39.3%

Some college, no degree 23.0%

Associate's degree 7.4%

Bachelor's degree 17.5%

Graduate / professional 9.0%

Metric	%
HS diploma or higher	96.1%
Bachelor's or higher	26.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	15	3.4%
Kindergarten	71	16.1%
Elementary school	160	36.3%
High school	146	33.1%
College / grad school	49	11.1%

Employment

Industry of employment

Education & healthcare 20.3%

Professional & management 14.0%

Public administration 10.1%

Construction 10.0%

Manufacturing 8.1%

Arts, food & hospitality 8.1%

Retail trade 7.9%

Finance & real estate 7.3%

Transportation & utilities 6.1%

Other services 3.9%

Agriculture & mining 1.9%

Wholesale trade 1.8%

Information 0.5%

Occupation

Category	%
Management, business & arts	37.8%
Service	16.6%
Sales & office	17.7%
Natural resources & construction	13.4%
Production & transportation	14.5%

Employment type

Type	%
Private sector	69.9%
Government	21.4%
Self-employed	8.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	75.1%
Carpool	15.1%
Public transit	0.0%
Walk	2.3%
Work from home	7.4%
Other means	0.0%
Avg commute (minutes)	26.7

Poverty

All people 6.1%

Under 18 years 0.0%

18 and over 7.9%

Married-couple families 1.8%

Female-led households 0.0%

Income support

Source	% of households
Social Security	36.8%
Retirement income	29.9%
Supplemental Security	4.1%
Cash public assistance	1.1%
Food stamps / SNAP	9.9%

Health indicators

Condition	%
Obesity	41.9%
High blood pressure	35.8%
High cholesterol	36.1%
Diabetes	10.7%
Heart disease	6.9%
Stroke	3.1%
Asthma	9.5%
Arthritis	26.3%
Kidney disease	3.0%
Pulmonary disease	7.0%
Cancer	7.3%

Behavior / access	%
Smoking	19.0%
Binge drinking	17.3%
No physical activity	24.6%
Less than 7 hrs sleep	33.4%
Depression	20.3%
Fair or poor health	13.8%
Poor mental health	13.4%
Poor physical health	10.2%
No health insurance	13.3%
Visited doctor (checkup)	74.7%
Visited dentist	65.7%
Cholesterol screening	89.4%
Teeth loss	13.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	124	9.2%

Disability	%
Any disability	18.0%
Under 18	13.9%
18–64 years	15.6%
65 and over	32.0%

Health insurance coverage

Type	%
Private insurance	71.7%
Public insurance	35.0%
No insurance	9.0%
Uninsured under 19	1.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,713	93.4%
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)	1,833	99.9%
Born in same state	1,826	99.6%
Born in different state	1,327	72.4%
Foreign born	7	0.4%
Naturalized citizen	1	0.1%
Not a US citizen	1	100.0%

Ancestry

Ancestry	Count	%
French	272	14.8%
Italian	171	9.3%
English	62	3.4%

Ancestry	Count	%
Arab	37	2%
Dutch	8	0.4%
Polish	2	0.1%

Technology access

Metric	% of households
Computer access	34.7%
Internet access	94.7%

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

Frequently asked questions about ZIP code 66451

What city is ZIP code 66451 in?

ZIP code 66451 is primarily assigned to Lyndon, Kansas.

What county is ZIP code 66451 in?

ZIP code 66451 falls within Osage County, Kansas.

Is ZIP code 66451 mostly owner-occupied?

88% of occupied units in ZIP code 66451 are owner-occupied, well above the national average.

Does ZIP code 66451 have a large retiree population?

37% of households in ZIP code 66451 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 66451?

The median home value in ZIP code 66451 is $150,800.

Does ZIP code 66451 have a large veteran population?

9% of civilians in ZIP code 66451 are veterans, above the national average of ~7%.

What timezone is ZIP code 66451 in?

ZIP code 66451 observes the CST timezone.