Marshall County, Iowa Population 2024

40,207

Marshall County, Iowa's estimated 2024 population is 40,207 with a growth rate of 0.48% 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 -1.26% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202941,1721930.47%
202840,9791930.47%
202740,7861930.48%
202640,5931930.48%
202540,4001930.48%
202440,2071930.48%
202340,0141930.48%
202239,821-92-0.23%
202139,913-183-0.46%
202040,0966241.58%
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%
201040,72200%
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%
1850338-40,834-99.18%
2024 Growth Rate
0.48% (193)
County Website
Marshall County
State
Iowa
County Seat
Marshalltown
2020 Population
40,096
Area
573 mi²
Density
70 people/mi²
Growth Since 2020
0.28% (111)
Founded
1846

Population by Race

Race
Population
Percentage (of total)
White29,83574.64%
Two or more races4,58911.48%
Other race2,5646.41%
Asian1,7384.35%
Black or African American7771.94%
Native American4681.17%
Native Hawaiian or Pacific Islander00%

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

38.7

Total

37.6

Male

40.4

Female

Marshall County, Iowa Adults

There are 29,844 adults, (7,378 of whom are seniors) in Marshall County, Iowa.

Marshall County, Iowa Age Dependency

77.9

Age Dependency Ratio

32.8

Old Age Dependency Ratio

45.1

Child Dependency Ratio

Marshall County, Iowa Sex Ratio

Female19,67049.21%
Male20,30150.79%

Marshall County, Iowa Population by Age

Marshall County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All15,5462.4873.326.7
Married8,1253.2286.813.2
Non Family5,5261.1957.242.8
Female1,1983.0158.241.8
Male6973.3470.229.8

3.12

Average Family Size

2.48

Average Household Size

73.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Marshall County, Iowa Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,4865.6%
Associates Degree3,09811.68%
Bachelors Degree3,87414.61%
Graduate Degree1,8146.84%
High School Graduate9,16234.55%
Less Than 9th Grade1,9547.37%
Some College5,13319.35%

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

Race
Total
High School
Bachelors
White20,02319,1834,930
Hispanic4,5132,446412
2+ Races2,0971,536347
Other Race1,378533208
Asian1,010532159
Black53048017
Native American20113010

The highest rate of high school graduation is among white people with a rate of 95.8%.

The highest rate of bachelors degrees is among white people with a rate of 24.62%.

Marshall County, Iowa Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$57,631$80,402$41,597
Graduate Degree$68,654$71,625$62,083
High School Graduate$41,439$47,302$33,786
Less Than 9th Grade$40,129$45,392$33,673
Overall$44,256$52,662$37,303
Some College$43,072$56,144$39,493

$44,256

Average Earnings

$52,662

Average Male

$37,303

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

76.18% of Marshall County, Iowa residents speak only English, while 23.82% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 19% of the population.

Marshall County, Iowa Language

Marshall County, Iowa Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White25,7642,4539.52%
Hispanic9,4401,60216.97%
Multiple4,53085818.94%
Other2,56437414.59%
Black7097510.58%
Asian1,738442.53%
Native461275.86%

11.07%

Overall Poverty Rate

9.6%

Male Poverty Rate

12.54%

Female Poverty Rate

Poverty in Marshall County, Iowa

The race most likely to be in poverty in Marshall County, Iowa is Multiple, with 18.94% below the poverty level.

The race least likely to be in poverty in Marshall County, Iowa is Asian, with 2.53% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.76%. Among those working part-time, it was 13.31%, and for those that did not work, the poverty rate was 17.28%.

Marshall County, Iowa Poverty

rate

Rate
Poverty
Less Than 9th Grade13.81%
High School10.83%
Some College8.08%
Bachelors or Greater4.38%

Marshall County, Iowa Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed33.92%
Male Unemployed31.94%
Female Employed7%
Male Employed4.1%

Marshall County, Iowa Poverty Rate by Employment Status and Sex

Marshall County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$87,778$99,466
Households$72,785$84,571
Married Families$96,069$109,380
Non Families$42,390$53,000

mean

median

Income by Household Type

Marshall County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

54.2%

Overall Marriage Rate

51.6%

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 55-64, 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

2,649

Number of Veterans

2,518

Male Veterans

131

Female Veterans

War
Veterans
Vietnam947
Second Gulf War473
First Gulf War419
Korea217
World War II139

Marshall County, Iowa Veterans by War

count

Age Group
Veterans
75+814
65 to 74806
35 to 54443
55 to 64376
18 to 34210

Marshall County, Iowa Veterans by Age

count

Name
Veterans
% of Total
White2,40710.24%
2+ Races1365.01%
Hispanic1322.28%
Black6010.58%
Asian383.3%
Native American83.38%

Marshall County, Iowa Veterans by Race

Marshall County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

9.01%

Veteran Poverty Rate

34.01%

Veteran Disability Rate

Marshall County, Iowa Veterans by Education

LaborForceParticipation

66.6%

Labor Force Participation

63.9%

Employment Rate

4%

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

66.27%

Born in Marshall County, Iowa

86.02%

Native Born

13.98%

Foreign Born

8.72%

Non Citizen

5.26%

Naturalized

Place of Birth

86.02% of Marshall County, Iowa residents were born in the United States, with 66.27% having been born in Iowa. 8.72% 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