Decatur County, Kansas Population 2024

2,735

Decatur County, Kansas's estimated 2024 population is 2,735 with a growth rate of 0.85% in the past year according to the most recent United States census data. Decatur County, Kansas is the 82nd largest county in Kansas. The 2010 population was 2,957 and has seen a growth of -7.51% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
20292,850230.81%
20282,827230.82%
20272,804230.83%
20262,781230.83%
20252,758230.84%
20242,735230.85%
20232,712230.86%
20222,689-77-2.78%
20212,76670.25%
20202,759-57-2.02%
20192,816-26-0.91%
20182,842-24-0.84%
20172,866371.31%
20162,829-98-3.35%
20152,927270.93%
20142,900-11-0.38%
20132,911250.87%
20122,886-41-1.4%
20112,927-30-1.01%
20102,95700%
19904,021-488-10.82%
19804,509-479-9.6%
19704,988-790-13.67%
19605,778-407-6.58%
19506,185-1,249-16.8%
19407,434-1,432-16.15%
19308,8667459.17%
19208,121-855-9.53%
19108,976-258-2.79%
19009,2348209.75%
18908,4144,234101.29%
18804,1801,33046.67%
2024 Growth Rate
0.85% (23)
County Website
Decatur County
State
Kansas
County Seat
Oberlin
2020 Population
2,759
Area
894 mi²
Density
3 people/mi²
Growth Since 2020
-0.87% (-24)
Founded
March 20, 1873

Population by Race

Race
Population
Percentage (of total)
White2,63395.02%
Two or more races582.09%
Black or African American291.05%
Native American260.94%
Other race210.76%
Asian40.14%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Black or African American

Native American

Other race

Asian

Native Hawaiian or Pacific Islander

Decatur County, Kansas Population by Race

Decatur County, Kansas Population Pyramid 2024

Decatur County, Kansas Median Age

50.6

Total

47.3

Male

52.8

Female

Decatur County, Kansas Adults

There are 2,194 adults, (781 of whom are seniors) in Decatur County, Kansas.

Decatur County, Kansas Age Dependency

96.1

Age Dependency Ratio

55.3

Old Age Dependency Ratio

40.8

Child Dependency Ratio

Decatur County, Kansas Sex Ratio

Female1,36449.22%
Male1,40750.78%

Decatur County, Kansas Population by Age

Decatur County, Kansas Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1,3242.0680.519.5
Married6172.898713
Non Family6101.1178.221.8
Female492.8457.142.9
Male482.545050

2.79

Average Family Size

2.06

Average Household Size

80.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Decatur County, Kansas Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1004.76%
Associates Degree22110.51%
Bachelors Degree44421.11%
Graduate Degree783.71%
High School Graduate68932.76%
Less Than 9th Grade341.62%
Some College53725.53%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Decatur County, Kansas Educational Attainment by Sex (over 25)

Decatur County, Kansas Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White1,9841,862497
Hispanic39274
2+ Races292916
Black29299
Native American26260
Other Race600
Asian440

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 55.17%.

Decatur County, Kansas Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$48,125$68,125$42,059
Graduate Degree$43,750$0$50,781
High School Graduate$30,809$45,694$21,107
Less Than 9th Grade$53,906$88,250$0
Overall$33,182$45,492$24,157
Some College$30,660$35,521$28,103

$33,182

Average Earnings

$45,492

Average Male

$24,157

Average Female

Decatur County, Kansas Earnings by Educational Attainment

Decatur County, Kansas Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Decatur County, Kansas Language

98.51% of Decatur County, Kansas residents speak only English, while 1.49% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.69% of the population.

Decatur County, Kansas Language

Decatur County, Kansas Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White2,47426210.59%
Hispanic1002929%
Native262388.46%
Other2121100%
Multiple5811.72%

12.25%

Overall Poverty Rate

7.92%

Male Poverty Rate

16.81%

Female Poverty Rate

Poverty in Decatur County, Kansas

The race most likely to be in poverty in Decatur County, Kansas is Other, with 100% below the poverty level.

The race least likely to be in poverty in Decatur County, Kansas is Multiple, with 1.72% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.34%. Among those working part-time, it was 19.38%, and for those that did not work, the poverty rate was 16.74%.

Decatur County, Kansas Poverty

rate

Rate
Poverty
Less Than 9th Grade20.51%
High School13.83%
Bachelors or Greater4.61%
Some College4.53%

Decatur County, Kansas Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed30.43%
Female Employed14.84%
Male Employed5.59%
Male Unemployed2.22%

Decatur County, Kansas Poverty Rate by Employment Status and Sex

Decatur County, Kansas Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$71,300$90,389
Households$49,412$67,705
Married Families$85,341$-999,999,999
Non Families$34,821$40,238

mean

median

Income by Household Type

Decatur County, Kansas Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.5%

Overall Marriage Rate

58.2%

Male Marriage Rate

52.7%

Female Marriage Rate

Decatur County, Kansas Married by Age and Sex

male

female

Decatur County, Kansas Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Decatur County, Kansas Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Decatur County, Kansas Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

125

Number of Veterans

115

Male Veterans

10

Female Veterans

War
Veterans
Vietnam95
Second Gulf War24
First Gulf War2
Korea0
World War II0

Decatur County, Kansas Veterans by War

count

Age Group
Veterans
75+53
65 to 7441
55 to 6413
18 to 3410
35 to 548

Decatur County, Kansas Veterans by Age

count

Name
Veterans
% of Total
White1185.63%
Black620.69%
2+ Races13.13%
Hispanic12.38%

Decatur County, Kansas Veterans by Race

Decatur County, Kansas Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

31.36%

Veteran Disability Rate

Decatur County, Kansas Veterans by Education

LaborForceParticipation

60.9%

Labor Force Participation

57.9%

Employment Rate

4.9%

Unemployment Rate

Decatur County, Kansas Employment by Age

LaborForceParticipation

Decatur County, Kansas Employment by Race

LaborForceParticipation

Decatur County, Kansas Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

64.02%

Born in Decatur County, Kansas

99.42%

Native Born

0.58%

Foreign Born

0.32%

Non Citizen

0.25%

Naturalized

Place of Birth

99.42% of Decatur County, Kansas residents were born in the United States, with 64.02% having been born in Kansas. 0.32% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Decatur County, Kansas Place of Birth

Sources