Marshalltown, Iowa Population 2024

27,427

Marshalltown is a city located in Marshall County Iowa. Marshalltown has a 2024 population of 27,427. It is also the county seat of Marshall County.Marshalltown is currently declining at a rate of -0.01% annually and its population has decreased by -0.51% since the most recent census, which recorded a population of 27,568 in 2020.

The average household income in Marshalltown is $75,196 with a poverty rate of 14.29%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Marshalltown is 35.5 years, 35.5 years for males, and 35.5 years for females.

Marshalltown Demographics

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

  • White: 71.42%
  • Two or more races: 11.72%
  • Other race: 7.76%
  • Asian: 5.22%
  • Black or African American: 2.9%
  • Native American: 0.99%
  • Native Hawaiian or Pacific Islander:
State
Iowa
Land Area (mi²)
19.3 sq mi
Density (mi²)
1,422.50/sq mi
Growth Since 2020
-0.51% (-141)
The current population of Marshalltown, Iowa is 27,427 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 27,568.

Marshalltown, Iowa Population 2024

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Marshalltown Metro Area Population by Year

Population by Race

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Race
Population
Percentage (of total)
White19,64971.42%
Two or more races3,22411.72%
Other race2,1347.76%
Asian1,4355.22%
Black or African American7982.9%
Native American2710.99%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Marshalltown Population by Race

Marshalltown Population Pyramid 2024

Marshalltown Median Age

35.5

Total

35.5

Male

35.5

Female

Marshalltown Adults

There are 20,141 adults, (4,694 of whom are seniors) in Marshalltown.

Marshalltown Age Dependency

78.1

Age Dependency Ratio

30.4

Old Age Dependency Ratio

47.7

Child Dependency Ratio

Marshalltown Sex Ratio

Female13,52449.16%
Male13,98750.84%

Marshalltown Population by Age

Marshalltown Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All9,9842.6267.332.7
Married4,9863.4583.116.9
Non Family3,6831.244951
Female8343.154.445.6
Male4813.8165.734.3
showing: 5 rows

3.35

Average Family Size

2.62

Average Household Size

67.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Marshalltown 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

Marshalltown Educational Attainment by Sex (over 25)

Marshalltown 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 94.13%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 23.77%.

Marshalltown Educational Attainment by Race

All

Male

Female

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$41,191

Average Earnings

$47,100

Average Male

$33,691

Average Female

Marshalltown Earnings by Educational Attainment

Marshalltown Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Marshalltown Language

66.62% of Marshalltown residents speak only English, while 33.38% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 27.36% of the population.

Marshalltown Language

Marshalltown Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
Hispanic9,1861,78519.43%
White14,0131,71312.22%
Multiple3,19074323.29%
Other2,13447022.02%
Asian1,435433%
Native2632911.03%
Black750293.87%
showing: 7 rows

14.29%

Overall Poverty Rate

12.21%

Male Poverty Rate

16.34%

Female Poverty Rate

Poverty in Marshalltown

The race most likely to be in poverty in Marshalltown is Multiple, with 23.29% below the poverty level.

The race least likely to be in poverty in Marshalltown is Asian, with 3% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.22%. Among those working part-time, it was 15.87%, and for those that did not work, the poverty rate was 23.38%.

Marshalltown Poverty

rate

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Rate
Poverty
High School17.98%
Less Than 9th Grade15.51%
Some College10.92%
Bachelors or Greater8.73%
showing: 4 rows

Marshalltown Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed36.1%
Female Unemployed31.9%
Female Employed10.33%
Male Employed5.78%
showing: 4 rows

Marshalltown Poverty Rate by Employment Status and Sex

Marshalltown Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Marshalltown Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.6%

Overall Marriage Rate

49.2%

Male Marriage Rate

52.1%

Female Marriage Rate

Marshalltown Married by Age and Sex

male

female

Marshalltown Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 45-54.

Marshalltown Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Marshalltown Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

2,191

Number of Veterans

2,071

Male Veterans

120

Female Veterans

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Marshalltown Veterans by War

count

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Marshalltown Veterans by Age

count

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Marshalltown Veterans by Race

Marshalltown Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

8.37%

Veteran Poverty Rate

32.52%

Veteran Disability Rate

Marshalltown Veterans by Education

LaborForceParticipation

65.9%

Labor Force Participation

61.4%

Employment Rate

6.8%

Unemployment Rate

Marshalltown Employment by Age

LaborForceParticipation

Marshalltown Employment by Race

LaborForceParticipation

Marshalltown 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

59%

Born in Marshalltown

81.27%

Native Born

18.73%

Foreign Born

11.95%

Non Citizen

6.78%

Naturalized

Place of Birth

81.27% of Marshalltown residents were born in the United States, with 59% having been born in Iowa. 11.95% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Marshalltown Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202927,412-3-0.01%
202827,415-3-0.01%
202727,418-3-0.01%
202627,421-3-0.01%
202527,424-3-0.01%
202427,427-3-0.01%
202327,430-3-0.01%
202227,433-3-0.01%
202127,436-132-0.48%
202027,5688193.06%
201926,749-233-0.86%
201826,982-122-0.45%
201727,104-66-0.24%
201627,170-168-0.61%
201527,338-266-0.96%
201427,604-219-0.79%
201327,823-10%
201227,824440.16%
201127,7801750.63%
201027,6051,5966.14%
200026,0098313.3%
199025,178-1,760-6.53%
198026,9387192.74%
197026,2193,69816.42%
196022,5212,70013.62%
195019,8215813.02%
194019,2401,86710.75%
193017,3731,64210.44%
192015,7312,35717.62%
191013,3741,83015.85%
190011,5442,63029.5%
18908,9142,67442.85%
18806,2403,02293.91%
18703,218
showing: 34 rows

Marshalltown Population by Year