Ottumwa, Iowa Population 2024

25,184

Ottumwa Demographics

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

  • White: 77.49%
  • Two or more races: 7.98%
  • Other race: 4.82%
  • Black or African American: 4.64%
  • Native Hawaiian or Pacific Islander: 2.72%
  • Asian: 2%
  • Native American: 0.36%
State
Iowa
Land Area (mi²)
16.1 sq mi
Density (mi²)
1,567.70/sq mi
Growth Since 2020
-1.06% (-271)
The current population of Ottumwa, Iowa is 25,184 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 25,455.

Population by Race

Race
Population
Percentage (of total)
White19,64677.49%
Two or more races2,0237.98%
Other race1,2214.82%
Black or African American1,1764.64%
Native Hawaiian or Pacific Islander6902.72%
Asian5062%
Native American900.36%

White

Two or more races

Other race

Black or African American

Native Hawaiian or Pacific Islander

Asian

Native American

Ottumwa Population by Race

Ottumwa Population Pyramid 2024

Ottumwa Median Age

37.4

Total

35

Male

40.4

Female

Ottumwa Adults

There are 19,319 adults, (4,136 of whom are seniors) in Ottumwa.

Ottumwa Age Dependency

67

Age Dependency Ratio

27.2

Old Age Dependency Ratio

39.7

Child Dependency Ratio

Ottumwa Sex Ratio

Female12,36248.76%
Male12,99051.24%

Ottumwa Population by Age

Ottumwa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All10,2132.4161.238.8
Married4,0122.9985.714.3
Non Family3,9201.2547.752.3
Female1,5923.4247.352.7
Male6893.272872

3

Average Family Size

2.41

Average Household Size

61.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Ottumwa Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,2167.16%
Associates Degree1,6909.96%
Bachelors Degree1,99711.77%
Graduate Degree1,4098.3%
High School Graduate6,20736.57%
Less Than 9th Grade1,2317.25%
Some College3,22418.99%

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

Race
Total
High School
Bachelors
White13,03012,0312,717
Hispanic2,0231,138258
2+ Races1,115767363
Black74846898
Other Race67140786
Islander3362621
Asian334207124
Native American4060

The highest rate of high school graduation is among white people with a rate of 92.33%.

The highest rate of bachelors degrees is among asian people with a rate of 37.13%.

Ottumwa Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$50,744$64,038$47,634
Graduate Degree$72,679$78,333$67,475
High School Graduate$36,131$36,833$35,488
Less Than 9th Grade$41,946$43,374$31,925
Overall$43,395$46,388$39,132
Some College$45,011$50,119$35,693

$43,395

Average Earnings

$46,388

Average Male

$39,132

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

81.13% of Ottumwa residents speak only English, while 18.87% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.34% of the population.

Ottumwa Language

Ottumwa Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White17,4013,24818.67%
Islander69046767.68%
Hispanic4,08346311.34%
Black1,11535331.66%
Multiple1,98933616.89%
Other1,175282.38%
Asian501265.19%
Native8666.98%

18.87%

Overall Poverty Rate

20.12%

Male Poverty Rate

17.55%

Female Poverty Rate

Poverty in Ottumwa

The race most likely to be in poverty in Ottumwa is Islander, with 67.68% below the poverty level.

The race least likely to be in poverty in Ottumwa is Other, with 2.38% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.35%. Among those working part-time, it was 25.23%, and for those that did not work, the poverty rate was 30.18%.

Ottumwa Poverty

rate

Rate
Poverty
Less Than 9th Grade28.57%
High School22.97%
Some College11.46%
Bachelors or Greater3.85%

Ottumwa Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed69.75%
Female Unemployed50%
Male Employed12.19%
Female Employed7.91%

Ottumwa Poverty Rate by Employment Status and Sex

Ottumwa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$64,206$79,310
Households$56,994$75,925
Married Families$86,397$-999,999,999
Non Families$42,861$66,532

mean

median

Income by Household Type

Ottumwa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

42.0%

Overall Marriage Rate

40.6%

Male Marriage Rate

43.4%

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 Over 65, 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

1,188

Number of Veterans

1,091

Male Veterans

97

Female Veterans

War
Veterans
Vietnam381
Second Gulf War293
First Gulf War253
Korea84
World War II4

Ottumwa Veterans by War

count

Age Group
Veterans
65 to 74339
35 to 54290
55 to 64233
75+206
18 to 34120

Ottumwa Veterans by Age

count

Name
Veterans
% of Total
White1,0816.92%
2+ Races504.08%
Asian4512.36%
Hispanic180.69%
Black121.5%

Ottumwa Veterans by Race

Ottumwa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.11%

Veteran Poverty Rate

30.14%

Veteran Disability Rate

Ottumwa Veterans by Education

LaborForceParticipation

62.2%

Labor Force Participation

59.8%

Employment Rate

3.7%

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

69.49%

Born in Ottumwa

87.68%

Native Born

12.32%

Foreign Born

7.12%

Non Citizen

5.2%

Naturalized

Place of Birth

87.68% of Ottumwa residents were born in the United States, with 69.49% having been born in Iowa. 7.12% 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
Year
Population
Growth
Change
202924,845-68-0.27%
202824,913-68-0.27%
202724,981-67-0.27%
202625,048-68-0.27%
202525,116-68-0.27%
202425,184-68-0.27%
202325,252380.15%
202225,214-182-0.72%
202125,396-59-0.23%
202025,4559363.82%
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%
18705,214-19,631-79.01%

Ottumwa Population by Year