Marion County, Kansas

County in KS, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

11,754

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

43.5

years ∙ half population younger than 43.5, half older

Diversity Index

17.1%

chance two random people differ in race and ethnicity

Nativity

foreign-born population

99%Native

1% Foreign-born

Geographic Context

Location, size, and surroundings

About

Marion County is a county in Kansas, United States.

Location

County in KS, US

Co-ordinates

DEC38.359647° N, 97.102771° W

DMS38° 21′ 34.73″ N, 97° 06′ 09.98″ W

Population Density & area

12.45/sq mi (4.81/km²)

Total Area

953.7 sq mi (2,470.1 km²)

Land Area

944.3 sq mi (2,445.7 km²) · 99.01%

Water Area

9.4 sq mi (24.4 km²) · 0.99%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

50.7% male

Male 50.7%

Female 49.3%

males per 100 females

Marion County 102.7

Kansas 100.7

United States 98

Nativity

foreign-born population

99%Native

1% Foreign-born

% Foreign-born

Marion County 1%

Kansas 7.4%

United States 14.1%

Age Distribution

How the population is spread across age groups

Median Age

43.5

years ∙ half population younger than 43.5, half older

Marion County

43.5

Kansas

37.4

United States

38.9

Dependency ratio

dependents per 100 working-age adults

Marion County 81

Kansas 68.7

United States 64.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Marion County	Kansas	United States
Age Group
Children (Under 18)	21.1%	23.8%	22%
Working age (18-64)	55.2%	59.2%	60.8%
Senior (65+)	23.7%	17%	17.2%
Dependency ratio
Total dependency ratio	81	68.7	64.4
Child dependency ratio	38.1	40.1	36.1
Old-age dependency ratio	42.9	28.6	28.3

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

90.9%

Black

0.9%

Asian

0.4%

Hispanic

4.2%

Other

3.6%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

17.1%

chance two random people differ in race and ethnicity

Marion County 17.1%

Kansas 44.7%

United States 61.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Marion County population

	Marion County	Kansas	United States
Hispanic or Latino	4.2%	13.6%	19.3%
Mexican	3.4%	10.4%	11.3%
Puerto Rican	0%	0.6%	1.8%
Cuban	0.1%	0.2%	0.8%
Other Hispanic / Latino	0.7%	2.3%	5.5%
Not Hispanic or Latino	95.8%	86.4%	80.7%
One race	93%	81.6%	76.4%
White	90.9%	72.7%	57.4%
Black or African American	0.9%	5.2%	11.9%
American Indian and Alaska Native	0.5%	0.4%	0.5%
Asian	0.4%	2.9%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0.1%	0.2%
Some Other Race	0.3%	0.4%	0.6%
Two or more races (Multiracial)	2.8%	4.8%	4.3%

Household & Families Composition

Household size, type, and family structure

Household structure

64% family

Family 64%

Non family 36%

% family households

Marion County 64%

Kansas 63.4%

United States 64.2%

Average household size

2.32

persons per household

Marion County

2.32

Kansas

2.44

United States

2.53

Household & Family COMPOSITION

Households

Percentage of Marion County population

	Marion County	Kansas	United States
Total households	4,750	1,174,060	129,227,496
Average houshold size	2.32	2.44	2.53
Family households	3,041	744,502	82,990,528
Average family size	2.93	3.05	3.14
Married couple family	2,624	576,382	60,637,388
Other families	417	168,120	22,353,140
Male householder	117	52,856	6,572,819
Female householder	300	115,264	15,780,321
Non-family households	1,709	429,558	46,236,968
One-person households	1,569	352,785	37,140,836
Male householder	792	167,881	16,871,444
Senior (65+) living alone	329	49,284	5,225,110
Female householder	777	184,904	20,269,392
Senior (65+) living alone	516	95,985	10,089,070
Other living arrangements	140	76,773	9,096,132

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

5,693

housing units

Marion County 5,693

Kansas 1,293,635

United States 143,775,355

Occupancy status

83.4% occupied

Occupied 83.4%

Vacant 16.6%

vacancy rate

Marion County 16.6%

Kansas 9.2%

United States 10.1%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

88.6%

Single family houses

88.6%

Apartments in multi-unit structures

7.5%

Mobile homes

Boat, RV, van, etc

Median Year Built

1959

Half of houses were built before 1959, and half after.

Historic ∙ 1939 or earlier

33.3%

Postwar & mid-century ∙ 1940 - 1969

28.1%

Late 20th century ∙ 1970 - 1999

27.5%

Modern ∙ 2000 or later

11.2%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Marion County	Kansas	United States
Rooms per unit
Median rooms	6.4	6	5.5
1–3 rooms	8.7%	11.9%	15.1%
4–6 rooms	42.4%	46.3%	51.6%
7+ rooms	48.9%	41.7%	33.4%
Bedrooms
No bedroom / studio	1.1%	2.5%	2.9%
1 bedroom	8.3%	9.4%	10.9%
2 bedrooms	29.1%	24.9%	25%
3 bedrooms	34.2%	35.7%	38.7%
4+ bedrooms	27.3%	27.5%	22.4%
At a glance
Median year built	1959	1977	1981
Total housing units	5,693	1,293,635	143,775,355

Occupancy Profile

Who is inside and how they use it

Homeownership

81.3% owners

Renter-occupied 18.7%

Owner-occupied 81.3%

homeownership rate

Marion County 81.3%

Kansas 67.2%

United States 65.2%

Average household size

2.4

Owner-occupied

1.97

Renter-occupied

owner-occupied average size

Marion County 2.4

Kansas 2.59

United States 2.64

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Marion County	Kansas	United States
Total occupied units	4,750	1,174,060	129,227,496
Year moved in
2020 or later	17.9%	26.8%	24.8%
2010 to 2019	39%	38.4%	39.6%
2000 to 2009	17.8%	16.3%	16.4%
1999 or earlier	25.3%	18.6%	19.1%
Occupants per room
1.00 or fewer	98.2%	97.9%	96.6%
1.01 to 1.50	1.3%	1.4%	2.2%
1.51 or more	0.5%	0.7%	1.2%
Vehicles availability
No vehicles	3.5%	5.1%	8.4%
1 vehicle	24.6%	30%	33.1%
2 vehicles	35.3%	38.2%	36.6%
3 or more vehicles	36.6%	26.7%	21.9%
House heating fuel used
Gas	76.1%	70.9%	51.4%
Electricity	18.2%	26.9%	41.3%
Solar	0%	0.1%	0.3%
Fuel oil, kerosene etc	0.2%	0.2%	3.9%
All other fuels	5.1%	1.7%	2%
No fuel used	0.4%	0.3%	1.2%
Selected characteristics
Lacking complete plumbing	0.4%	0.4%	0.4%
Lacking complete kitchen	1.1%	0.9%	0.8%
No telephone service available	0.8%	0.8%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$124,200

owner-occupied units

Median value(USD)

Marion County

$124,200

Kansas

$217,200

United States

$332,700

Housing Cost Burden

24.7%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

24.7%

Owners without a mortgage

10.2%

Renters

36.5%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Marion County	Kansas	United States
Property value
Median Value	$124,200	$217,200	$332,700
Under $100,000	39.4%	20.9%	11.4%
$100,000 - $200,000	32.6%	24.9%	15.8%
$200,000 - $300,000	14.1%	21%	17.8%
$300,000 - $500,000	11%	22.4%	26.9%
$500,000 - $1,000,000	2.4%	9.3%	20.9%
$1,000,000 and more	0.5%	1.5%	7.1%
Owner-occupied households
With a mortgage	44.9%	57.4%	60.6%
Without a mortgage	55.1%	42.6%	39.4%
Median monthly owner costs
With a mortgage	$1,319	$1,689	$1,963
Without a mortgage	$521	$641	$638
Gross rent
Median rent	$727	$1,060	$1,413

Education Profile

How educated is the community and how education pays off

Adults with a college degree

30.4%

of adults 25+ with a bachelor's degree or higher

Marion County 30.4%

Kansas 35.6%

United States 35.7%

Adults without a high school diploma

of adults (25+) without a high school diploma

Marion County 8%

Kansas 8.1%

United States 10.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

2,879

population (age 3+) enrolled in school

Nursery / Preschool

4.2%

K–12

65.5%

College / Undergraduate

25.6%

Graduate / Professional

4.7%

College-going rate (18-24 yr olds)

51.5%

of 18-24-year-olds in college or graduate school

Marion County

51.5%

Kansas

39.9%

United States

40.9%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Marion County	Kansas	United States
Total enrolled (age 3+)	2,879	753,280	80,089,790
Nursery / preschool	4.2%	6%	5.7%
K–12	65.5%	68.1%	67.6%
Kindergarten	7.2%	4.8%	5%
Elementary: Grades 1–4	17.3%	20.1%	19.8%
Elementary: Grades 5–8	20.4%	21.7%	21%
High School: Grades 9–12	20.6%	21.6%	21.7%
College or graduate school	30.3%	25.8%	26.7%
College, undergraduate	25.6%	20.1%	21%
Graduate, professional school	4.7%	5.7%	5.8%
College-going rate · 18-24 yr olds	51.5%	39.9%	40.9%
School type
Public school	72.9%	85.2%	82%
Private school	27.1%	14.8%	18%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

8,005

population 25 years and over

Total adults (25+)

Less than 9th grade

3.3%

9th-12th, no diploma

4.7%

HS graduate

27%

Some college no degree

23.5%

Associates degree

11.1%

Bachelors degree

20.6%

Graduate or professional degree

9.7%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

55.3% · 44.7%

9th-12th, no diploma

53.7% · 46.3%

HS graduate

54.9% · 45.1%

Some college no degree

48.1% · 51.9%

Associates degree

39.3% · 60.7%

Bachelors degree

47% · 53%

Graduate or professional degree

51.5% · 48.5%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Marion County	Kansas	United States
Population (25+)	8,005	1,946,678	230,807,303
Less than 9th grade	3.3%	3.5%	4.7%
9th–12th, no diploma	4.7%	4.6%	5.7%
High school diploma or GED	27%	25.4%	26%
Some college, no degree	23.5%	21.8%	19.1%
Associate's degree	11.1%	9.1%	8.8%
Bachelor's degree or higher	30.4%	35.6%	35.7%
Bachelor's degree	20.6%	22.2%	21.6%
Graduate or professional	9.7%	13.4%	14.1%
High School or higher	92%	92%	89.6%

Earnings by education level

percentage as applicable

Median Earnings

$43,509

Median earnings for adults 25+, by level

Less than HS graduate

$36,204

HS graduate

$40,541

Some college or associates

$35,015

Bachelors degree

$49,934

Graduate or professional degree

$57,955

Poverty Rate

for ages 25+, with bachelors degree or higher

Less than HS graduate

32.8%

HS graduate

9.6%

Some college or associates

9.9%

Bachelors degree or higher

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Marion County	Kansas	United States
Median earnings
Population 25+, with earnings	$43,509	$50,504	$52,696
Less than high school graduate	$36,204	$35,231	$32,485
High school graduate (includes equivalency)	$40,541	$39,282	$40,153
Some college or associate's degree	$35,015	$45,261	$47,260
Bachelor's degree	$49,934	$63,396	$70,044
Graduate or professional degree	$57,955	$75,635	$90,720
Poverty rates
Less than high school graduate	32.8%	22.7%	24.2%
High school graduate (includes equivalency)	9.6%	12.9%	14.4%
Some college or associate's degree	9.9%	8.5%	9.8%
Bachelor's degree or higher	3%	3.8%	4.5%

Insights for Marion County, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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