Mahaska County, Iowa Population 2021

Mahaska County, Iowa's estimated population is 22,249 with a growth rate of 0.35% in the past year according to the most recent United States census data. Mahaska County, Iowa is the 28th largest county inIowa. The 2010 Population was 22,408 and has seen a growth of -0.71% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
202122,249770.35%
202022,172770.35%
201922,095770.35%
201822,018-193-0.87%
201722,211250.11%
201622,186-126-0.56%
201522,312-51-0.23%
201422,363-58-0.26%
201322,421230.10%
201222,398-103-0.46%
201122,501930.42%
201022,4088864.12%
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%
189028,8053,60314.30%
188025,2022,69411.97%
187022,5087,69251.92%
186014,8168,827147.39%
18505,9890.00%
2021 Growth Rate
0.35% (77)
County Website
State
Founded
1843
County Seat
2010 Population
22,408
Growth Since 2010
-0.71% (-159)
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Mahaska County, Iowa Population Growth

Population by Race

Race Population Percentage
White21,11295.25%
Asian3421.54%
Black or African American3121.41%
Two or More Races2901.31%
American Indian and Alaska Native570.26%
Native Hawaiian and Other Pacific Islander500.23%
Some Other Race10.00%
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Mahaska County, Iowa Population by Race

Mahaska County, Iowa Population Pyramid $2021

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Mahaska County, Iowa Median Age

39.3


Total

38


Male

40.8


Female

Mahaska County, Iowa Adults

There are 16,848 adults, (4,005 of whom are seniors) in Mahaska County, Iowa.

Mahaska County, Iowa Age Dependency

72.6

Age Dependency Ratio

31.2

Old Age Dependency Ratio

41.4

Child Dependency Ratio

Mahaska County, Iowa Sex Ratio

Female

11,016

49.70%

Male

11,148

50.30%

Mahaska County, Iowa Population by Age

Mahaska County, Iowa Renter vs Owner Occupied by Household Type

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Mahaska County, Iowa Household Types

Type Owner Renter
Female47.6%52.4%
Non Family53%47%
Male63.3%36.7%
All69%31%
Married83.8%16.2%

69.0%

Rate of Home Ownership

Mahaska County, Iowa Households and Families

Type Count Average Size Owned
All8,9272.4169
Married4,6732.9683.8
Non Family2,9571.2553
Female8992.9347.6
Male3983.3763.3

2.91

Average Family Size

2.41

Average Household Size

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Mahaska County, Iowa Households by Type

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Education Attained Count Percentage
Less Than 9th Grade4262.85%
9th to 12th Grade7444.98%
High School Graduate5,91439.57%
Some College3,03520.31%
Associates Degree1,53810.29%
Bachelors Degree2,31415.48%
Graduate Degree9736.51%
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Mahaska County, Iowa Educational Attainment by Sex (over 25)

Mahaska County, Iowa Educational Attainment by Race

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Race Total High School Bachelors
White14,10313,0643,152
Hispanic27326412
Asian20216896
Black19313917
2+ Races80466
Native American53534
Islander5050

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 47.52%.

Mahaska County, Iowa Educational Attainment by Race

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Name Average Male Female
Overall$37,700$45,027$27,419
Less Than 9th Grade$15,750$20,536$14,539
High School Graduate$31,761$41,358$22,220
Some College$35,991$45,802$24,341
Bachelors Degree$44,756$54,600$38,788
Graduate Degree$59,031$63,902$51,646

$37,700

Average Earnings

$45,027

Average Male

$27,419

Average Female

Mahaska County, Iowa Earnings by Educational Attainment

Mahaska County, Iowa Language by Age

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Mahaska County, Iowa Language

97.38% of Mahaska County, Iowa residents speak only English, while 2.62% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 1.45% of the population.

Mahaska County, Iowa Language

Mahaska County, Iowa Poverty by Race

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Name Total In Poverty Poverty Rate
White20,1652,51512.47%
Black23512954.89%
Multiple27210839.71%
Asian3428424.56%
Hispanic4786313.18%
Islander5050100.00%

13.67%

Overall Poverty Rate

12.38%

Male Poverty Rate

14.97%

Female Poverty Rate

Poverty in Mahaska County, Iowa

The race most likely to be in poverty in Mahaska County, Iowa is Islander, with 100.00% below the poverty level.

The race least likely to be in poverty in Mahaska County, Iowa is White, with 12.47% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.97%. Among those working part-time, it was 24.20%, and for those that did not work, the poverty rate was 16.98%.

Mahaska County, Iowa Poverty

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Name Poverty
Less Than 9th Grade21.74%
High School11.75%
Some College11.24%
Bachelors or Greater5.51%

Mahaska County, Iowa Poverty Rate by Education

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Rate Poverty
Female Unemployed45.00%
Male Unemployed22.11%
Female Employed11.39%
Male Employed9.08%

Mahaska County, Iowa Poverty Rate by Employment Status and Sex

Mahaska County, Iowa Income by Household Type

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Name Median Mean
Households$54,825$68,931
Families$68,590$83,241
Married Families$78,032-
Non Families$26,522$36,451
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Income by Household Type

Mahaska County, Iowa Marital Status

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Marriage Rates

54.9%

Overall Marriage Rate

55.2%

Male Marriage Rate

54.6%

Female Marriage Rate

Mahaska County, Iowa Married by Age and Sex

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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 55-64.

Mahaska County, Iowa Marital Status by Race

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Mahaska County, Iowa Marital Status

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1,107

Number of Veterans

1,042

Male Veterans

65

Female Veterans

War Veterans
Vietnam364
First Gulf War219
Korea169
Second Gulf War155
World War II43

Mahaska County, Iowa Veterans by War

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Age Group Veterans
75+318
35 to 54308
65 to 74263
55 to 64151
18 to 3467

Mahaska County, Iowa Veterans by Age

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Name Veterans % of Total
White1,0836.70%
Hispanic4614.79%
Black228.56%
2+ Races21.75%

Mahaska County, Iowa Veterans by Race

Mahaska County, Iowa Veterans by Education

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7.16%

Veteran Poverty Rate

25.58%

Veteran Disability Rate

Mahaska County, Iowa Veterans by Education

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65.8%

Labor Force Participation

63.2%

Employment Rate

3.9%

Unemployment Rate

Mahaska County, Iowa Employment by Age

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Mahaska County, Iowa Employment by Race

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Mahaska County, Iowa Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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79.05%

Born in Mahaska County, Iowa

98.06%

Native Born

1.94%

Foreign Born

1.22%

Non Citizen

0.72%

Naturalized

Place of Birth

98.06% of Mahaska County, Iowa residents were born in the United States, with 79.05% having been born in Iowa. 1.22% 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

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources