66023 ZIP Code — Effingham, KS

Atchison County, Kansas

ZIP code 66023 is located in Effingham, Kansas, within Atchison County. It covers approximately 72.01 square miles and serves a population of 889 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 913.

About ZIP code 66023

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 $105,300. Owner-occupancy is high at 86%, well above the national average.

Median household income is $59,375. The poverty rate of 3% is below the national average. 60% 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 25 minutes is near the national average.

College attainment at 11% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 66023 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

889

population

72.01

sq mi land

Standard

ZIP type

Central (CT)

timezone

66023 ZIP code map

Cities in ZIP code 66023

Below are the cities the US Postal Service accepts for ZIP code 66023. Using any city not on this list may result in mail delivery delays.

City	Status
Effingham	Preferred

Nearby ZIP codes

66058 Muscotah (5.4 mi) 66060 Nortonville (7.3 mi) 66041 Lancaster (8.4 mi) 66016 Cummings (9.5 mi) 66088 Valley Falls (10.9 mi) 66424 Everest (11.2 mi) 66439 Horton (12.2 mi) 66552 Whiting (12.3 mi) 66419 Denison (14.2 mi) 66017 Denton (15.2 mi) 66097 Winchester (15.8 mi) 66002 Atchison (16.5 mi)

Demographics updated 05/2026

Population
Total population	889
Population density	12 / sq mi
State FIPS	20
County FIPS	005

Geography
Land area	72.01 sq mi
Water area	0.29 sq mi
Latitude	39.5069
Longitude	-95.4261
Timezone	Central (CT)
Area code	913

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	64.9%	50.2%	41.1%
$50k – $100k	23.5%	30.6%	32.2%
$100k – $200k	11.6%	17.0%	21.0%
Over $200k	0.0%	2.2%	5.7%

Demographics & statistics

889

Population

People per sq mi

53.3

Median age

$59,375

Median household income

$35,587

Per capita income

$105,300

Median home value

$625

Median monthly rent

85.9%

Home ownership

3.3%

Poverty rate

0.7%

Unemployment

399

Housing units

10.6%

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

105

65–74

124

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	139	15.6%
18 and over	750	84.4%
65 and over	330	37.1%
Median age	53.3 years

Race & ethnicity

White 93.6%

Two or more races 6.4%

Group	Count	%
White	832	93.6%
Two or more races	57	6.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	64.9%	50.2%	41.1%
$50k – $100k	23.5%	30.6%	32.2%
$100k – $200k	11.6%	17.0%	21.0%
Over $200k	0.0%	2.2%	5.7%

Under $10k 3.8%

$10k–$15k 1.5%

$15k–$25k 5.8%

$25k–$35k 15.3%

$35k–$50k 14.6%

$50k–$75k 24.4%

$75k–$100k 9.5%

$100k–$150k 21.1%

$150k–$200k 0.5%

$200k+ 3.5%

Range	% of households
Under $10k	3.8%
$10k–$15k	1.5%
$15k–$25k	5.8%
$25k–$35k	15.3%
$35k–$50k	14.6%
$50k–$75k	24.4%
$75k–$100k	9.5%
$100k–$150k	21.1%
$150k–$200k	0.5%
$200k+	3.5%
Median income	$59,375

Housing

Home values

Under $50k 9.4%

$50k–$100k 35.1%

$100k–$150k 30.1%

$150k–$200k 8.2%

$200k–$300k 7.6%

$300k–$500k 7.0%

$1M+ 2.6%

Housing overview

Metric	Value
Median home value	$105,300
Median rent / month	$625
Owner occupied	85.9%
Renter occupied	14.1%
Vacant	12.5%
Single-family detached	88.1%
Large apartment buildings	1.5%
Mobile homes	6.8%
Median rooms	6.1
Avg household size (owned)	2.24

Year built

Era	%
2020 or later	0.0%
2010–2019	0.9%
2000–2009	7.9%
1990–1999	6.2%
1980–1989	13.2%
1970–1979	25.7%
1960–1969	9.9%
1950–1959	1.5%
1940–1949	0.4%
1939 or earlier	34.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	8.4%
2 bedrooms	28.8%
3 bedrooms	46.2%
4 bedrooms	13.8%
5+ bedrooms	2.9%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	26.6%
2 vehicles	25.1%
3 or more	47.0%

Heating fuel

Fuel type	%
Utility gas	61.6%
Electricity	19.1%
Propane / LP gas	16.3%
Wood	3.0%

Households & families

Household type	Count	%
Married-couple family	200	50.3%
Cohabiting couple	0	0.0%
Male householder, no spouse	56	14.1%
Female householder, no spouse	142	35.7%
Households with children under 18	66	16.6%
Households with seniors (65+)	225	56.5%
Average household size	2.23

Marital status

Status	Male	Female
Never married	19.2%	8.5%
Married	66.9%	47.8%
Separated	4.2%	0.0%
Widowed	1.7%	29.6%
Divorced	8.1%	14.1%

Education

Less than 9th grade 2.0%

Some HS, no diploma 2.3%

HS graduate 38.8%

Some college, no degree 35.0%

Associate's degree 11.4%

Bachelor's degree 6.8%

Graduate / professional 3.8%

Metric	%
HS diploma or higher	95.8%
Bachelor's or higher	10.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	7	5.4%
Kindergarten	10	7.7%
Elementary school	68	52.3%
High school	35	26.9%
College / grad school	10	7.7%

Employment

Industry of employment

Education & healthcare 25.3%

Professional & management 20.0%

Construction 10.4%

Retail trade 8.4%

Wholesale trade 8.2%

Manufacturing 7.5%

Agriculture & mining 5.3%

Public administration 4.8%

Transportation & utilities 4.6%

Arts, food & hospitality 3.9%

Finance & real estate 1.7%

Occupation

Category	%
Management, business & arts	45.1%
Service	19.0%
Sales & office	22.9%
Natural resources & construction	7.7%
Production & transportation	5.3%

Employment type

Type	%
Private sector	71.3%
Government	16.9%
Self-employed	11.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.6%
Carpool	7.7%
Public transit	0.0%
Walk	3.6%
Work from home	5.6%
Other means	0.5%
Avg commute (minutes)	24.5

Poverty

All people 3.3%

Under 18 years 0.0%

18 and over 3.9%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	60.1%
Retirement income	37.2%
Supplemental Security	3.5%
Cash public assistance	2.5%
Food stamps / SNAP	4.5%

Health indicators

Condition	%
Obesity	36.9%
High blood pressure	38.0%
High cholesterol	37.1%
Diabetes	11.7%
Heart disease	7.8%
Stroke	3.4%
Asthma	9.4%
Arthritis	26.8%
Kidney disease	3.2%
Pulmonary disease	7.8%
Cancer	7.8%

Behavior / access	%
Smoking	19.8%
Binge drinking	17.1%
No physical activity	25.3%
Less than 7 hrs sleep	32.1%
Depression	19.6%
Fair or poor health	15.2%
Poor mental health	13.7%
Poor physical health	11.0%
No health insurance	14.7%
Visited doctor (checkup)	74.1%
Visited dentist	64.6%
Cholesterol screening	89.4%
Teeth loss	14.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	39	5.2%

Disability	%
Any disability	15.3%
Under 18	9.4%
18–64 years	13.3%
65 and over	20.3%

Health insurance coverage

Type	%
Private insurance	63.6%
Public insurance	52.8%
No insurance	6.5%
Uninsured under 19	1.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	865	97.3%
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)	887	99.8%
Born in same state	887	99.8%
Born in different state	674	75.8%
Foreign born	0	0.0%
Naturalized citizen	2	0.2%
Not a US citizen	2	100.0%

Ancestry

Ancestry	Count	%
Italian	133	15%
Arab	131	14.7%
French	116	13%

Ancestry	Count	%
Polish	9	1%
English	5	0.6%

Technology access

Metric	% of households
Computer access	44.8%
Internet access	88.7%

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

Frequently asked questions about ZIP code 66023

What city is ZIP code 66023 in?

ZIP code 66023 is primarily assigned to Effingham, Kansas.

What county is ZIP code 66023 in?

ZIP code 66023 falls within Atchison County, Kansas.

Does ZIP code 66023 have an older population?

37% of residents in ZIP code 66023 are 65 or older, above the national average of ~17%.

Does ZIP code 66023 have a large retiree population?

60% of households in ZIP code 66023 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 66023?

11% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 66023 mostly owner-occupied?

86% of occupied units in ZIP code 66023 are owner-occupied, well above the national average.

What timezone is ZIP code 66023 in?

ZIP code 66023 observes the CST timezone.