Mahaska County, Iowa Population 2024

21,950

Mahaska County, Iowa's estimated 2024 population is 21,950 with a growth rate of 0.01% in the past year according to the most recent United States census data. Mahaska County, Iowa is the 28th largest county in Iowa. The 2010 population was 22,409 and has seen a growth of -2.05% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202921,96020.01%
202821,95820.01%
202721,95620.01%
202621,95420.01%
202521,95220.01%
202421,95020.01%
202321,94820.01%
202221,94620.01%
202121,944-203-0.92%
202022,147-282-1.26%
201922,4292261.02%
201822,203-219-0.98%
201722,422970.43%
201622,325-92-0.41%
201522,417-49-0.22%
201422,466340.15%
201322,432250.11%
201222,407-99-0.44%
201122,506970.43%
201022,409
199021,522-1,345-5.88%
198022,8676903.11%
197022,177-1,425-6.04%
196023,602-1,070-4.34%
195024,672-1,813-6.85%
194026,4856812.64%
193025,804-466-1.77%
192026,270-3,590-12.02%
191029,860-4,413-12.88%
190034,2735,46818.98%
189028,8053,60314.3%
188025,2022,69411.97%
187022,5087,69251.92%
186014,8168,827147.39%
18505,989-15,971-72.73%
showing: 35 rows
2024 Growth Rate
0.01% (2)
County Website
Mahaska County
State
Iowa
County Seat
2010 Population
22,409
Area
571 mi²
Density
38 people/mi²
Growth Since 2010
-2.05% (-459)
Founded
1843

Mahaska County, Iowa Population 2024

Population by Race

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Race
Population
Percentage (of total)
White20,65793.64%
Two or more races6723.05%
Black or African American3771.71%
Asian2241.02%
Other race1040.47%
Native American240.11%
Native Hawaiian or Pacific Islander1
showing: 7 rows

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Mahaska County, Iowa Population by Race

Mahaska County, Iowa Population Pyramid 2024

Mahaska County, Iowa Median Age

39.6

Total

38.3

Male

40.5

Female

Mahaska County, Iowa Adults

There are 16,811 adults, (4,189 of whom are seniors) in Mahaska County, Iowa.

Mahaska County, Iowa Age Dependency

74.8

Age Dependency Ratio

33.2

Old Age Dependency Ratio

41.6

Child Dependency Ratio

Mahaska County, Iowa Sex Ratio

Female10,85749.22%
Male11,20250.78%

Mahaska County, Iowa Population by Age

Mahaska County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All8,8732.4167.732.3
Married4,5053.0183.216.8
Non Family3,0781.2452.147.9
Female9283.1645.854.2
Male3622.9163.836.2
showing: 5 rows

2.93

Average Family Size

2.41

Average Household Size

67.7%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Mahaska County, Iowa Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Mahaska County, Iowa Educational Attainment by Sex (over 25)

Mahaska County, Iowa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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

The highest rate of bachelors degrees is among native american people with a rate of 100%.

Mahaska County, Iowa Educational Attainment by Race

All

Male

Female

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$43,378

Average Earnings

$51,526

Average Male

$33,750

Average Female

Mahaska County, Iowa Earnings by Educational Attainment

Mahaska County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Mahaska County, Iowa Language

97.77% of Mahaska County, Iowa residents speak only English, while 2.23% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.19% of the population.

Mahaska County, Iowa Language

Mahaska County, Iowa Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White19,7982,29011.57%
Black30511738.36%
Multiple6538813.48%
Hispanic4805411.25%
Native241666.67%
Other10066%
Asian22431.34%
showing: 7 rows

11.97%

Overall Poverty Rate

10.33%

Male Poverty Rate

13.65%

Female Poverty Rate

Poverty in Mahaska County, Iowa

The race most likely to be in poverty in Mahaska County, Iowa is Native, with 66.67% below the poverty level.

The race least likely to be in poverty in Mahaska County, Iowa is Asian, with 1.34% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.61%. Among those working part-time, it was 21.58%, and for those that did not work, the poverty rate was 16.65%.

Mahaska County, Iowa Poverty

rate

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Rate
Poverty
Less Than 9th Grade26.45%
High School12.88%
Some College7.39%
Bachelors or Greater3.84%
showing: 4 rows

Mahaska County, Iowa Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed49.4%
Male Unemployed47.3%
Female Employed9.26%
Male Employed8.08%
showing: 4 rows

Mahaska County, Iowa Poverty Rate by Employment Status and Sex

Mahaska County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Mahaska County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.4%

Overall Marriage Rate

52.3%

Male Marriage Rate

52.5%

Female Marriage Rate

Mahaska County, Iowa Married by Age and Sex

male

female

Mahaska County, Iowa 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 45-54.

Mahaska County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Mahaska County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

933

Number of Veterans

910

Male Veterans

23

Female Veterans

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Mahaska County, Iowa Veterans by War

count

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Mahaska County, Iowa Veterans by Age

count

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Mahaska County, Iowa Veterans by Race

Mahaska County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.09%

Veteran Poverty Rate

32.99%

Veteran Disability Rate

Mahaska County, Iowa Veterans by Education

LaborForceParticipation

65.8%

Labor Force Participation

63.6%

Employment Rate

3.3%

Unemployment Rate

Mahaska County, Iowa Employment by Age

LaborForceParticipation

Mahaska County, Iowa Employment by Race

LaborForceParticipation

Mahaska County, Iowa 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

78.99%

Born in Mahaska County, Iowa

98.32%

Native Born

1.68%

Foreign Born

0.82%

Non Citizen

0.86%

Naturalized

Place of Birth

98.32% of Mahaska County, Iowa residents were born in the United States, with 78.99% having been born in Iowa. 0.82% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Mahaska County, Iowa Place of Birth

Sources