Marshall County, Iowa Population 2024

39,839

Marshall County, Iowa's estimated 2024 population is 39,839 with a growth rate of -0.05% in the past year according to the most recent United States census data. Marshall County, Iowa is the 15th largest county in Iowa. The 2010 population was 40,722 and has seen a growth of -2.17% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202939,739-20-0.05%
202839,759-20-0.05%
202739,779-20-0.05%
202639,799-20-0.05%
202539,819-20-0.05%
202439,839-20-0.05%
202339,859-20-0.05%
202239,879-20-0.05%
202139,899-194-0.48%
202040,0936211.57%
201939,472-407-1.02%
201839,879-172-0.43%
201740,051-71-0.18%
201640,122-218-0.54%
201540,340-372-0.91%
201440,712-281-0.69%
201340,993-39-0.1%
201241,032190.05%
201141,0132910.71%
201040,722
199038,276-3,376-8.11%
198041,6525761.4%
197041,0763,0928.14%
196037,9842,3736.66%
195035,6112050.58%
194035,4061,6794.98%
193033,7271,0973.36%
192032,6302,3517.76%
191030,2792880.96%
190029,9914,14916.06%
189025,8422,0908.8%
188023,7526,17635.14%
187017,57611,561192.2%
18606,0155,6771679.59%
1850338-39,401-99.15%
showing: 35 rows
2024 Growth Rate
-0.05% (-20)
County Website
Marshall County
State
Iowa
County Seat
2010 Population
40,722
Area
573 mi²
Density
70 people/mi²
Growth Since 2010
-2.17% (-883)
Founded
1846

Marshall County, Iowa Population 2024

Population by Race

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Race
Population
Percentage (of total)
White31,42278.46%
Two or more races3,4748.67%
Other race2,3265.81%
Asian1,6914.22%
Black or African American8442.11%
Native American2920.73%
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

Marshall County, Iowa Population by Race

Marshall County, Iowa Population Pyramid 2024

Marshall County, Iowa Median Age

38.5

Total

37.6

Male

39.8

Female

Marshall County, Iowa Adults

There are 29,886 adults, (7,098 of whom are seniors) in Marshall County, Iowa.

Marshall County, Iowa Age Dependency

75.7

Age Dependency Ratio

31.1

Old Age Dependency Ratio

44.6

Child Dependency Ratio

Marshall County, Iowa Sex Ratio

Female19,74749.31%
Male20,30250.69%

Marshall County, Iowa Population by Age

Marshall County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All15,2882.5273.526.5
Married8,0623.2386.613.4
Non Family5,3651.2156.843.2
Female1,1513.0259.640.4
Male7103.5873.426.6
showing: 5 rows

3.16

Average Family Size

2.52

Average Household Size

73.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Marshall County, Iowa 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

Marshall County, Iowa Educational Attainment by Sex (over 25)

Marshall County, Iowa 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 95.01%.

The highest rate of bachelors degrees is among white people with a rate of 23.77%.

Marshall County, Iowa Educational Attainment by Race

All

Male

Female

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$43,763

Average Earnings

$53,048

Average Male

$36,067

Average Female

Marshall County, Iowa Earnings by Educational Attainment

Marshall County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Marshall County, Iowa Language

76.12% of Marshall County, Iowa residents speak only English, while 23.88% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 19.18% of the population.

Marshall County, Iowa Language

Marshall County, Iowa Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White25,5152,2168.69%
Hispanic9,6451,82418.91%
Multiple3,41775522.1%
Other2,32647020.21%
Black767466%
Asian1,691432.54%
Native2842910.21%
showing: 7 rows

11.17%

Overall Poverty Rate

9.64%

Male Poverty Rate

12.69%

Female Poverty Rate

Poverty in Marshall County, Iowa

The race most likely to be in poverty in Marshall County, Iowa is Multiple, with 22.1% below the poverty level.

The race least likely to be in poverty in Marshall County, Iowa is Asian, with 2.54% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.99%. Among those working part-time, it was 13.2%, and for those that did not work, the poverty rate was 18.41%.

Marshall County, Iowa Poverty

rate

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Rate
Poverty
Less Than 9th Grade15.38%
High School12.56%
Some College7.98%
Bachelors or Greater5.28%
showing: 4 rows

Marshall County, Iowa Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed31.34%
Male Unemployed30.28%
Female Employed7.5%
Male Employed4.32%
showing: 4 rows

Marshall County, Iowa Poverty Rate by Employment Status and Sex

Marshall County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Marshall County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

54.1%

Overall Marriage Rate

51.5%

Male Marriage Rate

56.8%

Female Marriage Rate

Marshall County, Iowa Married by Age and Sex

male

female

Marshall County, Iowa 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.

Marshall County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Marshall County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

2,868

Number of Veterans

2,692

Male Veterans

176

Female Veterans

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Marshall County, Iowa Veterans by War

count

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Marshall County, Iowa Veterans by Age

count

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Marshall County, Iowa Veterans by Race

Marshall County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.31%

Veteran Poverty Rate

30.05%

Veteran Disability Rate

Marshall County, Iowa Veterans by Education

LaborForceParticipation

66.8%

Labor Force Participation

63.1%

Employment Rate

5.6%

Unemployment Rate

Marshall County, Iowa Employment by Age

LaborForceParticipation

Marshall County, Iowa Employment by Race

LaborForceParticipation

Marshall County, Iowa 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

66.23%

Born in Marshall County, Iowa

86.33%

Native Born

13.67%

Foreign Born

8.61%

Non Citizen

5.06%

Naturalized

Place of Birth

86.33% of Marshall County, Iowa residents were born in the United States, with 66.23% having been born in Iowa. 8.61% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Marshall County, Iowa Place of Birth

Sources