66865 ZIP Code — Olpe, KS

Lyon County, Kansas

ZIP code 66865 is located in Olpe, Kansas, within Lyon County. It covers approximately 149.03 square miles and serves a population of 1,046 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 620.

About ZIP code 66865

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 $187,500. Owner-occupancy is high at 83%, well above the national average.

The gap between median ($100,045) 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 education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.

Educational attainment is near the national average, with 34% of residents holding a bachelor's degree or higher.

1,046

population

149.03

sq mi land

Standard

ZIP type

Central (CT)

timezone

66865 ZIP code map

Cities in ZIP code 66865

Below are the cities the US Postal Service accepts for ZIP code 66865. Using any city not on this list may result in mail delivery delays.

City	Status
Olpe	Preferred

Nearby ZIP codes

66860 Madison (9.1 mi) 66854 Hartford (11.5 mi) 66801 Emporia (12.7 mi) 66855 Lamont (14 mi) 66864 Neosho Rapids (14.2 mi) 66845 Cottonwood Falls (16.3 mi) 66853 Hamilton (18.6 mi)

Demographics updated 05/2026

Population
Total population	1,046
Population density	7 / sq mi
State FIPS	20
County FIPS	111

Geography
Land area	149.03 sq mi
Water area	1.06 sq mi
Latitude	38.2527
Longitude	-96.2122
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	26.4%	49.7%	41.1%
$50k – $100k	40.8%	34.8%	32.2%
$100k – $200k	32.3%	13.2%	21.0%
Over $200k	0.4%	2.3%	5.7%

Demographics & statistics

1,046

Population

People per sq mi

29.8

Median age

$100,045

Median household income

$43,973

Per capita income

$187,500

Median home value

$625

Median monthly rent

82.9%

Home ownership

1.4%

Poverty rate

0.7%

Unemployment

387

Housing units

33.8%

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	314	30.0%
18 and over	732	70.0%
65 and over	116	11.1%
Median age	29.8 years

Race & ethnicity

White 88%

Two or more races 6.7%

Hispanic or Latino 4.5%

Black or African American 0.7%

Other race 0.1%

Group	Count	%
White	964	88%
Two or more races	73	6.7%
Hispanic or Latino	49	4.5%
Black or African American	8	0.7%
Other race	1	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	26.4%	49.7%	41.1%
$50k – $100k	40.8%	34.8%	32.2%
$100k – $200k	32.3%	13.2%	21.0%
Over $200k	0.4%	2.3%	5.7%

Under $10k 2.7%

$10k–$15k 0.3%

$15k–$25k 2.7%

$25k–$35k 3.2%

$35k–$50k 11.7%

$50k–$75k 18.9%

$75k–$100k 10.4%

$100k–$150k 35.2%

$150k–$200k 8.8%

$200k+ 6.1%

Range	% of households
Under $10k	2.7%
$10k–$15k	0.3%
$15k–$25k	2.7%
$25k–$35k	3.2%
$35k–$50k	11.7%
$50k–$75k	18.9%
$75k–$100k	10.4%
$100k–$150k	35.2%
$150k–$200k	8.8%
$200k+	6.1%
Median income	$100,045

Housing

Home values

Under $50k 8.0%

$50k–$100k 12.2%

$100k–$150k 11.9%

$150k–$200k 23.5%

$200k–$300k 27.3%

$300k–$500k 11.6%

$500k–$1M 5.1%

$1M+ 0.3%

Housing overview

Metric	Value
Median home value	$187,500
Median rent / month	$625
Owner occupied	82.9%
Renter occupied	17.1%
Vacant	16.9%
Single-family detached	86.5%
Large apartment buildings	0.0%
Mobile homes	10.2%
Median rooms	6.1
Avg household size (owned)	2.89

Year built

Era	%
2020 or later	0.0%
2010–2019	9.3%
2000–2009	12.9%
1990–1999	11.8%
1980–1989	7.3%
1970–1979	18.0%
1960–1969	4.2%
1950–1959	5.5%
1940–1949	0.0%
1939 or earlier	31.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.8%
2 bedrooms	24.8%
3 bedrooms	35.9%
4 bedrooms	31.0%
5+ bedrooms	4.4%

Vehicles per household

Vehicles	% of households
No vehicle	0.5%
1 vehicle	8.3%
2 vehicles	43.5%
3 or more	47.7%

Heating fuel

Fuel type	%
Utility gas	40.0%
Electricity	15.2%
Propane / LP gas	38.4%
Wood	3.5%
No fuel used	1.9%

Households & families

Household type	Count	%
Married-couple family	267	71.2%
Cohabiting couple	52	13.9%
Male householder, no spouse	20	5.3%
Female householder, no spouse	36	9.6%
Households with children under 18	124	33.1%
Households with seniors (65+)	78	20.8%
Average household size	2.79

Marital status

Status	Male	Female
Never married	20.4%	24.6%
Married	70.5%	67.6%
Separated	0.0%	0.0%
Widowed	0.6%	4.5%
Divorced	8.5%	3.3%

Education

Less than 9th grade 0.9%

Some HS, no diploma 1.6%

HS graduate 28.8%

Some college, no degree 27.0%

Associate's degree 8.0%

Bachelor's degree 25.3%

Graduate / professional 8.4%

Metric	%
HS diploma or higher	97.5%
Bachelor's or higher	33.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	23	6.9%
Kindergarten	2	0.6%
Elementary school	221	66.0%
High school	47	14.0%
College / grad school	42	12.5%

Employment

Industry of employment

Education & healthcare 36.2%

Manufacturing 22.6%

Agriculture & mining 7.0%

Professional & management 7.0%

Finance & real estate 6.5%

Arts, food & hospitality 6.1%

Other services 4.2%

Retail trade 3.2%

Construction 3.1%

Transportation & utilities 2.7%

Public administration 0.8%

Wholesale trade 0.7%

Occupation

Category	%
Management, business & arts	40.9%
Service	17.5%
Sales & office	16.8%
Natural resources & construction	8.1%
Production & transportation	16.6%

Employment type

Type	%
Private sector	65.0%
Government	24.1%
Self-employed	10.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.8%
Carpool	8.8%
Public transit	0.0%
Walk	4.1%
Work from home	7.9%
Other means	0.4%
Avg commute (minutes)	24.6

Poverty

All people 1.4%

Under 18 years 0.0%

18 and over 1.9%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	19.2%
Retirement income	13.6%
Supplemental Security	1.3%
Cash public assistance	5.1%
Food stamps / SNAP	0.5%

Health indicators

Condition	%
Obesity	37.2%
High blood pressure	35.3%
High cholesterol	36.1%
Diabetes	10.2%
Heart disease	6.9%
Stroke	2.9%
Asthma	9.0%
Arthritis	25.1%
Kidney disease	2.9%
Pulmonary disease	6.4%
Cancer	7.5%

Behavior / access	%
Smoking	17.3%
Binge drinking	17.1%
No physical activity	21.5%
Less than 7 hrs sleep	30.8%
Depression	18.6%
Fair or poor health	12.6%
Poor mental health	13.1%
Poor physical health	9.5%
No health insurance	12.7%
Visited doctor (checkup)	75.4%
Visited dentist	70.0%
Cholesterol screening	90.6%
Teeth loss	12.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	20	2.7%

Disability	%
Any disability	8.6%
Under 18	4.8%
18–64 years	5.8%
65 and over	33.6%

Health insurance coverage

Type	%
Private insurance	90.2%
Public insurance	23.7%
No insurance	3.2%
Uninsured under 19	5.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,002	95.8%
Spanish	7	0.7%
Other Indo-European	7	0.7%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,027	98.2%
Born in same state	1,027	98.2%
Born in different state	860	82.2%
Foreign born	0	0.0%
Naturalized citizen	19	1.8%
Not a US citizen	12	63.2%

Ancestry

Ancestry	Count	%
Arab	118	11.3%
Italian	99	9.5%
French	35	3.3%

Ancestry	Count	%
Polish	25	2.4%
English	14	1.3%
German	4	0.4%

Technology access

Metric	% of households
Computer access	35.9%
Internet access	92.8%

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

Frequently asked questions about ZIP code 66865

What city is ZIP code 66865 in?

ZIP code 66865 is primarily assigned to Olpe, Kansas.

What county is ZIP code 66865 in?

ZIP code 66865 falls within Lyon County, Kansas.

Is ZIP code 66865 mostly owner-occupied?

83% of occupied units in ZIP code 66865 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 66865?

The median home value in ZIP code 66865 is $187,500.

What is the population of ZIP code 66865?

ZIP code 66865 has an estimated population of 1,046 residents, with a density of 7 people per square mile.

What is the median household income in ZIP code 66865?

The median household income in ZIP code 66865 is $100,045, above the national median of ~$75,000.

What timezone is ZIP code 66865 in?

ZIP code 66865 observes the CST timezone.