Oskaloosa, Iowa Population 2021

11,622
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Oskaloosa is a city located in Mahaska County Iowa. It is also the county seat of Mahaska County. With a 2020 population of 11,622, it is the 34th largest city in Iowa and the 2791st largest city in the United States . Oskaloosa is currently growing at a rate of 0.50% annually and its population has increased by 1.39% since the most recent census, which recorded a population of 11,463 in 2010. Oskaloosa reached it's highest population of in . Spanning over 8 miles, Oskaloosa has a population density of 1,449 people per square mile.

The average household income in Oskaloosa is $63,159 with a poverty rate of 20.08%. The median rental costs in recent years comes to $653 per month, and the median house value is $96,300. The median age in Oskaloosa is 35 years, 31.6 years for males, and 38.1 years for females.

Oskaloosa Demographics

According to the most recent ACS, the racial composition of Oskaloosawas:

  • White: 93.62%
  • Asian: 2.78%
  • Black or African American: 1.80%
  • Two or more races: 1.03%
  • Native Hawaiian or Pacific Islander: 0.43%
  • Native American: 0.32%
  • Other race: 0.01%
The current population of Oskaloosa, Iowa is 11,622 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 11,506.The last official US Census in 2010 recorded the population at 11,463.

Oskaloosa, Iowa Population 2021

2020 and 2021 population is estimated by projecting the 2019 numbers.

Year Population Growth Growth Rate
202122,249770.35%
202022,172770.35%
201922,095770.35%
201822,018-193-0.88%
201722,211250.11%
201622,186-126-0.57%
201522,312-51-0.23%
201422,363-58-0.26%
201322,421230.10%
201222,398-103-0.46%
201122,501930.41%
201022,4080.00%

Oskaloosa Metro Area Population by Year

Population by Race

Race Population Percentage
White10,77793.62%
Asian3202.78%
Black or African American2071.80%
Two or More Races1191.03%
Native Hawaiian and Other Pacific Islander500.43%
American Indian and Alaska Native370.32%
Some Other Race10.01%
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Oskaloosa Population by Race

Oskaloosa Population Pyramid $2021

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Oskaloosa Median Age

35


Total

31.6


Male

38.1


Female

Oskaloosa Adults

There are 8,688 adults, (2,153 of whom are seniors) in Oskaloosa.

Oskaloosa Age Dependency

76.1

Age Dependency Ratio

32.9

Old Age Dependency Ratio

43.2

Child Dependency Ratio

Oskaloosa Sex Ratio

Female

5,784

50.25%

Male

5,727

49.75%

Oskaloosa Population by Age

Oskaloosa Renter vs Owner Occupied by Household Type

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Oskaloosa Household Types

Type Owner Renter
Female38.6%61.4%
Male39.4%60.6%
Non Family44.8%55.2%
All58.3%41.7%
Married78.2%21.8%

58.3%

Rate of Home Ownership

Oskaloosa Households and Families

Type Count Average Size Owned
All4,8462.2558.3
Married2,0972.978.2
Non Family1,9471.2744.8
Female6042.8238.6
Male1983.3139.4

2.82

Average Family Size

2.25

Average Household Size

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Oskaloosa Households by Type

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Education Attained Count Percentage
Less Than 9th Grade3174.21%
9th to 12th Grade2993.98%
High School Graduate2,84737.85%
Some College1,60721.36%
Associates Degree75810.08%
Bachelors Degree1,13215.05%
Graduate Degree5627.47%
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Oskaloosa Educational Attainment by Sex (over 25)

Oskaloosa Educational Attainment by Race

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Race Total High School Bachelors
White6,9026,3681,591
Hispanic22422412
Asian18315585
Black117636
Islander5050
Native American3737
2+ Races1919

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 46.45%.

Oskaloosa Educational Attainment by Race

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Name Average Male Female
Overall$31,969$41,615$25,287
Less Than 9th Grade$12,111$$11,890
High School Graduate$26,868$33,407$21,914
Some College$30,549$42,538$22,986
Bachelors Degree$44,132$54,639$38,167
Graduate Degree$56,875$77,857$50,030

$31,969

Average Earnings

$41,615

Average Male

$25,287

Average Female

Oskaloosa Earnings by Educational Attainment

Oskaloosa Language by Age

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Oskaloosa Language

95.95% of Oskaloosa residents speak only English, while 4.05% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 2.60% of the population.

Oskaloosa Language

Oskaloosa Poverty by Race

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Name Total In Poverty Poverty Rate
White9,9971,82418.25%
Black13011790.00%
Asian3208325.94%
Multiple1016968.32%
Hispanic3265416.56%
Islander5050100.00%

20.08%

Overall Poverty Rate

19.73%

Male Poverty Rate

20.43%

Female Poverty Rate

Poverty in Oskaloosa

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

The race least likely to be in poverty in Oskaloosa is Hispanic, with 16.56% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.46%. Among those working part-time, it was 37.71%, and for those that did not work, the poverty rate was 20.19%.

Oskaloosa Poverty

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Name Poverty
Less Than 9th Grade28.52%
High School17.60%
Some College16.39%
Bachelors or Greater5.21%

Oskaloosa Poverty Rate by Education

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Rate Poverty
Female Unemployed61.90%
Male Unemployed32.63%
Female Employed16.22%
Male Employed16.16%

Oskaloosa Poverty Rate by Employment Status and Sex

Oskaloosa Income by Household Type

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Name Median Mean
Households$47,429$63,159
Families$59,303$81,097
Married Families$76,766-
Non Families$21,600$33,089
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Income by Household Type

Oskaloosa Marital Status

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Marriage Rates

47.7%

Overall Marriage Rate

48.7%

Male Marriage Rate

46.7%

Female Marriage Rate

Oskaloosa Married by Age and Sex

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Oskaloosa 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.

Oskaloosa Marital Status by Race

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Oskaloosa Marital Status

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567

Number of Veterans

513

Male Veterans

54

Female Veterans

War Veterans
Vietnam188
First Gulf War111
Korea78
Second Gulf War71
World War II26

Oskaloosa Veterans by War

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Age Group Veterans
75+157
35 to 54151
65 to 74137
55 to 6482
18 to 3440

Oskaloosa Veterans by Age

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Name Veterans % of Total
White5666.92%
Hispanic3313.64%
Black10.55%

Oskaloosa Veterans by Race

Oskaloosa Veterans by Education

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10.65%

Veteran Poverty Rate

25.42%

Veteran Disability Rate

Oskaloosa Veterans by Education

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64.7%

Labor Force Participation

61.6%

Employment Rate

4.7%

Unemployment Rate

Oskaloosa Employment by Age

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Oskaloosa Employment by Race

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Oskaloosa 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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73.36%

Born in Oskaloosa

96.80%

Native Born

3.20%

Foreign Born

2.28%

Non Citizen

0.91%

Naturalized

Place of Birth

96.80% of Oskaloosa residents were born in the United States, with 73.36% having been born in Iowa. 2.28% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Oskaloosa Place of Birth

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
202111,622580.50%
202011,564580.50%
201911,506580.51%
201811,448-99-0.86%
201711,547330.29%
201611,514-56-0.48%
201511,570400.35%
201411,530-27-0.23%
201311,557240.21%
201211,533-37-0.32%
201111,570520.45%
201011,5185800.52%
200010,9383060.28%
199010,632-357-0.33%
198010,989-235-0.21%
197011,2241710.15%
196011,053-71-0.06%
195011,1241000.09%
194011,0249010.86%
193010,1236960.71%
19209,427-39-0.04%
19109,4662540.27%
19009,2122,6543.46%
18906,5581,9603.61%
18804,5981,3943.68%
18703,2040.00%

Oskaloosa Population by Year