Ottumwa, Iowa Population 2024

24,902

Ottumwa is a city located in Wapello County Iowa. Ottumwa has a 2024 population of 24,902. It is also the county seat of Wapello County. Ottumwa is currently declining at a rate of -0.54% annually and its population has decreased by -2.15% since the most recent census, which recorded a population of 25,448 in 2020.

The average household income in Ottumwa is $69,867 with a poverty rate of 18.99%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Ottumwa is 36.7 years, 33.9 years for males, and 38.9 years for females.

Ottumwa Demographics

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

  • White: 81.58%
  • Two or more races: 5.8%
  • Black or African American: 4.39%
  • Other race: 3.79%
  • Native Hawaiian or Pacific Islander: 2.05%
  • Asian: 2.04%
  • Native American: 0.35%
State
Iowa
Land Area (mi²)
15.8 sq mi
Density (mi²)
1,571.80/sq mi
Growth Since 2020
-2.15% (-546)
The current population of Ottumwa, Iowa is 24,902 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 25,448.

Ottumwa, Iowa Population 2024

Population by Race

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Race
Population
Percentage (of total)
White20,68981.58%
Two or more races1,4705.8%
Black or African American1,1134.39%
Other race9623.79%
Native Hawaiian or Pacific Islander5192.05%
Asian5182.04%
Native American880.35%

White

Two or more races

Black or African American

Other race

Native Hawaiian or Pacific Islander

Asian

Native American

Ottumwa Population by Race

Ottumwa Population Pyramid 2024

Ottumwa Median Age

36.7

Total

33.9

Male

38.9

Female

Ottumwa Adults

There are 19,333 adults, (3,843 of whom are seniors) in Ottumwa.

Ottumwa Age Dependency

63.7

Age Dependency Ratio

24.8

Old Age Dependency Ratio

38.9

Child Dependency Ratio

Ottumwa Sex Ratio

Female12,51549.35%
Male12,84450.65%

Ottumwa Population by Age

Ottumwa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All10,2012.4158.941.1
Married4,0292.968317
Non Family3,8631.2845.754.3
Female1,7153.4538.261.8
Male5943.0241.858.2

2.97

Average Family Size

2.41

Average Household Size

58.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Ottumwa 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

Ottumwa Educational Attainment by Sex (over 25)

Ottumwa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 92.37%.

The highest rate of bachelors degrees is among asian people with a rate of 38.29%.

Ottumwa Educational Attainment by Race

All

Male

Female

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$42,083

Average Earnings

$45,336

Average Male

$36,863

Average Female

Ottumwa Earnings by Educational Attainment

Ottumwa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Ottumwa Language

84.39% of Ottumwa residents speak only English, while 15.61% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 9.65% of the population.

Ottumwa Language

Ottumwa Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White18,1343,46419.1%
Hispanic3,68439610.75%
Black1,02436735.84%
Islander51930859.34%
Multiple1,3991258.93%
Asian513193.7%
Other923151.63%
Native8478.33%

18.99%

Overall Poverty Rate

19.32%

Male Poverty Rate

18.64%

Female Poverty Rate

Poverty in Ottumwa

The race most likely to be in poverty in Ottumwa is Islander, with 59.34% below the poverty level.

The race least likely to be in poverty in Ottumwa is Other, with 1.63% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.24%. Among those working part-time, it was 25.95%, and for those that did not work, the poverty rate was 29.16%.

Ottumwa Poverty

rate

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Rate
Poverty
High School23.95%
Less Than 9th Grade23.88%
Some College10%
Bachelors or Greater4.46%

Ottumwa Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed60.33%
Female Unemployed31.11%
Male Employed10.56%
Female Employed10.17%

Ottumwa Poverty Rate by Employment Status and Sex

Ottumwa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Ottumwa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

42.4%

Overall Marriage Rate

42.6%

Male Marriage Rate

42.3%

Female Marriage Rate

Ottumwa Married by Age and Sex

male

female

Ottumwa Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 55-64.

Ottumwa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Ottumwa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,251

Number of Veterans

1,128

Male Veterans

123

Female Veterans

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Ottumwa Veterans by War

count

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Ottumwa Veterans by Age

count

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Ottumwa Veterans by Race

Ottumwa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

9.34%

Veteran Poverty Rate

29.81%

Veteran Disability Rate

Ottumwa Veterans by Education

LaborForceParticipation

63.3%

Labor Force Participation

60.5%

Employment Rate

4.5%

Unemployment Rate

Ottumwa Employment by Age

LaborForceParticipation

Ottumwa Employment by Race

LaborForceParticipation

Ottumwa 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

70.57%

Born in Ottumwa

88.8%

Native Born

11.2%

Foreign Born

6.36%

Non Citizen

4.84%

Naturalized

Place of Birth

88.8% of Ottumwa residents were born in the United States, with 70.57% having been born in Iowa. 6.36% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Ottumwa Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202924,219-137-0.56%
202824,356-136-0.56%
202724,492-137-0.56%
202624,629-136-0.55%
202524,765-137-0.55%
202424,902-136-0.54%
202325,038-137-0.54%
202225,175-200-0.79%
202125,375-73-0.29%
202025,4489293.79%
201924,519480.2%
201824,471120.05%
201724,459-201-0.82%
201624,660-154-0.62%
201524,81490.04%
201424,805-77-0.31%
201324,882380.15%
201224,844-57-0.23%
201124,901-160-0.64%
201025,06100%
200024,9985102.08%
199024,488-2,893-10.57%
198027,381-2,229-7.53%
197029,610-4,261-12.58%
196033,8712400.71%
195033,6312,0616.53%
194031,5703,49512.45%
193028,0755,07222.05%
192023,0039914.5%
191022,0123,81520.96%
190018,1974,19629.97%
189014,0014,99755.5%
18809,0043,79072.69%
18705,214-19,005-78.47%
showing: 34 rows

Ottumwa Population by Year