Oskaloosa, Iowa Population 2024

11,528

Oskaloosa is a city located in Mahaska County Iowa. Oskaloosa has a 2024 population of 11,528. It is also the county seat of Mahaska County.Oskaloosa is currently growing at a rate of 0.2% annually but its population has decreased by -0.09% since the most recent census, which recorded a population of 11,538 in 2020.

The average household income in Oskaloosa is $76,198 with a poverty rate of 17.04%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Oskaloosa is 36.5 years, 34.4 years for males, and 39.8 years for females.

Oskaloosa Demographics

According to the most recent ACS, the racial composition of Oskaloosa was:

  • White: 92.66%
  • Black or African American: 2.55%
  • Two or more races: 2.03%
  • Asian: 1.71%
  • Other race: 0.85%
  • Native American: 0.19%
  • Native Hawaiian or Pacific Islander:
State
Iowa
Land Area (mi²)
8.0 sq mi
Density (mi²)
1,437.10/sq mi
Growth Since 2020
-0.09% (-10)
The current population of Oskaloosa, Iowa is 11,528 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 11,538.

Oskaloosa, Iowa Population 2024

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Oskaloosa Metro Area Population by Year

Population by Race

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Race
Population
Percentage (of total)
White10,64992.66%
Black or African American2932.55%
Two or more races2332.03%
Asian1971.71%
Other race980.85%
Native American220.19%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Oskaloosa Population by Race

Oskaloosa Population Pyramid 2024

Oskaloosa Median Age

36.5

Total

34.4

Male

39.8

Female

Oskaloosa Adults

There are 8,791 adults, (2,300 of whom are seniors) in Oskaloosa.

Oskaloosa Age Dependency

77

Age Dependency Ratio

35.4

Old Age Dependency Ratio

41.6

Child Dependency Ratio

Oskaloosa Sex Ratio

Female5,77950.29%
Male5,71349.71%

Oskaloosa Population by Age

Oskaloosa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All4,5882.3658.441.6
Married2,0332.9278.521.5
Non Family1,6941.2842.957.1
Female6473.1539.460.6
Male2143.2148.151.9
showing: 5 rows

2.86

Average Family Size

2.36

Average Household Size

58.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Oskaloosa 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

Oskaloosa Educational Attainment by Sex (over 25)

Oskaloosa 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%.

Oskaloosa Educational Attainment by Race

All

Male

Female

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$41,667

Average Earnings

$47,079

Average Male

$34,849

Average Female

Oskaloosa Earnings by Educational Attainment

Oskaloosa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Oskaloosa Language

97.01% of Oskaloosa residents speak only English, while 2.99% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 1.5% of the population.

Oskaloosa Language

Oskaloosa Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White9,8571,62616.5%
Black22110949.32%
Multiple2145827.1%
Hispanic3054314.1%
Native221672.73%
showing: 5 rows

17.04%

Overall Poverty Rate

14.83%

Male Poverty Rate

19.21%

Female Poverty Rate

Poverty in Oskaloosa

The race most likely to be in poverty in Oskaloosa is Native, with 72.73% below the poverty level.

The race least likely to be in poverty in Oskaloosa is Hispanic, with 14.1% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.11%. Among those working part-time, it was 32.62%, and for those that did not work, the poverty rate was 18.86%.

Oskaloosa Poverty

rate

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Rate
Poverty
Less Than 9th Grade34.73%
High School16.23%
Some College10.57%
Bachelors or Greater2.94%
showing: 4 rows

Oskaloosa Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed66.23%
Female Unemployed59.65%
Female Employed14.3%
Male Employed13.16%
showing: 4 rows

Oskaloosa Poverty Rate by Employment Status and Sex

Oskaloosa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Oskaloosa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

46.2%

Overall Marriage Rate

48.0%

Male Marriage Rate

44.4%

Female Marriage Rate

Oskaloosa Married by Age and Sex

male

female

Oskaloosa Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Oskaloosa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Oskaloosa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

443

Number of Veterans

434

Male Veterans

9

Female Veterans

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Oskaloosa Veterans by War

count

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Oskaloosa Veterans by Age

count

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Oskaloosa Veterans by Race

Oskaloosa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.95%

Veteran Poverty Rate

33.16%

Veteran Disability Rate

Oskaloosa Veterans by Education

LaborForceParticipation

65.5%

Labor Force Participation

62.7%

Employment Rate

4.3%

Unemployment Rate

Oskaloosa Employment by Age

LaborForceParticipation

Oskaloosa Employment by Race

LaborForceParticipation

Oskaloosa 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

72.58%

Born in Oskaloosa

97.75%

Native Born

2.25%

Foreign Born

1.27%

Non Citizen

0.97%

Naturalized

Place of Birth

97.75% of Oskaloosa residents were born in the United States, with 72.58% having been born in Iowa. 1.27% 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: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202911,643230.2%
202811,620230.2%
202711,597230.2%
202611,574230.2%
202511,551230.2%
202411,528230.2%
202311,505230.2%
202211,482230.2%
202111,459-79-0.68%
202011,538-273-2.31%
201911,8111901.63%
201811,621-121-1.03%
201711,7421181.02%
201611,624-39-0.33%
201511,663400.34%
201411,623620.54%
201311,561250.22%
201211,536-36-0.31%
201111,572540.47%
201011,5185805.3%
200010,9383062.88%
199010,632-357-3.25%
198010,989-235-2.09%
197011,2241711.55%
196011,053-71-0.64%
195011,1241000.91%
194011,0249018.9%
193010,1236967.38%
19209,427-39-0.41%
19109,4662542.76%
19009,2122,65440.47%
18906,5581,96042.63%
18804,5981,39443.51%
18703,204
showing: 34 rows

Oskaloosa Population by Year