Marshall County, Iowa Population 2021

Marshall County, Iowa's estimated population is 38,331 with a growth rate of -1.34% in the past year according to the most recent United States census data. Marshall County, Iowa is the 16th largest county inIowa. The 2010 Population was 40,722 and has seen a growth of -5.87% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
202138,331-519-1.34%
202038,850-519-1.32%
201939,369-519-1.30%
201839,888-190-0.47%
201740,078-57-0.14%
201640,135-217-0.54%
201540,352-370-0.91%
201440,722-273-0.67%
201340,995-37-0.09%
201241,032190.05%
201141,0132910.71%
201040,7222,4466.39%
199038,276-3,376-8.11%
198041,6525761.40%
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%
189025,8422,0908.80%
188023,7526,17635.14%
187017,57611,561192.20%
18606,0155,6771679.59%
18503380.00%
2021 Growth Rate
-1.34% (-519)
County Website
State
Founded
1846
County Seat
2010 Population
40,722
Growth Since 2010
-5.87% (-2,391)
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Marshall County, Iowa Population Growth

Population by Race

Race Population Percentage
White34,30385.83%
Some Other Race2,6526.64%
Asian1,4743.69%
Two or More Races9132.28%
Black or African American5021.26%
American Indian and Alaska Native1050.26%
Native Hawaiian and Other Pacific Islander150.04%
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Marshall County, Iowa Population by Race

Marshall County, Iowa Population Pyramid $2021

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Marshall County, Iowa Median Age

38.7


Total

37.4


Male

40.1


Female

Marshall County, Iowa Adults

There are 29,900 adults, (7,069 of whom are seniors) in Marshall County, Iowa.

Marshall County, Iowa Age Dependency

75

Age Dependency Ratio

31

Old Age Dependency Ratio

44.1

Child Dependency Ratio

Marshall County, Iowa Sex Ratio

Female

19,656

49.18%

Male

20,308

50.82%

Marshall County, Iowa Population by Age

Marshall County, Iowa Renter vs Owner Occupied by Household Type

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Marshall County, Iowa Household Types

Type Owner Renter
Female47.1%52.9%
Non Family55.4%44.6%
All70.5%29.5%
Male74.5%25.5%
Married84.5%15.5%

70.5%

Rate of Home Ownership

Marshall County, Iowa Households and Families

Type Count Average Size Owned
All15,4192.5270.5
Married7,9473.1684.5
Non Family5,4741.2355.4
Female1,3323.4147.1
Male6663.6274.5

3.13

Average Family Size

2.52

Average Household Size

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Marshall County, Iowa Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2,4219.14%
9th to 12th Grade1,8597.02%
High School Graduate9,06234.20%
Some College5,35920.22%
Associates Degree2,81510.62%
Bachelors Degree3,67113.85%
Graduate Degree1,3104.94%
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Marshall County, Iowa Educational Attainment by Sex (over 25)

Marshall County, Iowa Educational Attainment by Race

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Race Total High School Bachelors
White20,98119,5764,564
Hispanic3,9011,692155
Other Race1,20346646
Asian828266139
2+ Races387313117
Black3863126
Native American8989
Islander1515

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 30.23%.

Marshall County, Iowa Educational Attainment by Race

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Name Average Male Female
Overall$38,579$45,816$30,548
Less Than 9th Grade$31,699$34,608$26,592
High School Graduate$37,077$42,684$25,599
Some College$38,859$48,428$31,004
Bachelors Degree$48,983$64,808$35,972
Graduate Degree$74,392$87,500$65,750

$38,579

Average Earnings

$45,816

Average Male

$30,548

Average Female

Marshall County, Iowa Earnings by Educational Attainment

Marshall County, Iowa Language by Age

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Marshall County, Iowa Language

77.36% of Marshall County, Iowa residents speak only English, while 22.64% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 18.67% of the population.

Marshall County, Iowa Language

Marshall County, Iowa Poverty by Race

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Name Total In Poverty Poverty Rate
White27,1352,3678.72%
Hispanic8,7472,00022.86%
Other2,64633512.66%
Black46512326.45%
Asian1,4661037.03%
Multiple890748.31%
Native1031413.59%

12.03%

Overall Poverty Rate

10.95%

Male Poverty Rate

13.12%

Female Poverty Rate

Poverty in Marshall County, Iowa

The race most likely to be in poverty in Marshall County, Iowa is Black, with 26.45% below the poverty level.

The race least likely to be in poverty in Marshall County, Iowa is Asian, with 7.03% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.57%. Among those working part-time, it was 14.00%, and for those that did not work, the poverty rate was 18.73%.

Marshall County, Iowa Poverty

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Name Poverty
Less Than 9th Grade16.34%
High School12.32%
Some College7.79%
Bachelors or Greater4.64%

Marshall County, Iowa Poverty Rate by Education

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Rate Poverty
Female Unemployed36.80%
Male Unemployed26.10%
Female Employed8.42%
Male Employed5.41%

Marshall County, Iowa Poverty Rate by Employment Status and Sex

Marshall County, Iowa Income by Household Type

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Name Median Mean
Households$56,437$68,760
Families$69,134$81,331
Married Families$81,125-
Non Families$32,910$42,655
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Income by Household Type

Marshall County, Iowa Marital Status

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Marriage Rates

53.9%

Overall Marriage Rate

53.5%

Male Marriage Rate

54.3%

Female Marriage Rate

Marshall County, Iowa Married by Age and Sex

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Marshall County, Iowa 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 35-44.

Marshall County, Iowa Marital Status by Race

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Marshall County, Iowa Marital Status

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2,867

Number of Veterans

2,718

Male Veterans

149

Female Veterans

War Veterans
Vietnam1,090
First Gulf War405
Second Gulf War283
Korea258
World War II155

Marshall County, Iowa Veterans by War

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Age Group Veterans
75+914
65 to 74819
35 to 54481
55 to 64475
18 to 34178

Marshall County, Iowa Veterans by Age

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Name Veterans % of Total
White2,79510.62%
Hispanic360.72%
Native American3539.33%
2+ Races235.20%
Other Race140.90%

Marshall County, Iowa Veterans by Race

Marshall County, Iowa Veterans by Education

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3.74%

Veteran Poverty Rate

34.65%

Veteran Disability Rate

Marshall County, Iowa Veterans by Education

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64.3%

Labor Force Participation

61%

Employment Rate

5%

Unemployment Rate

Marshall County, Iowa Employment by Age

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Marshall County, Iowa Employment by Race

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Marshall County, Iowa Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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67.75%

Born in Marshall County, Iowa

86.55%

Native Born

13.45%

Foreign Born

9.31%

Non Citizen

4.14%

Naturalized

Place of Birth

86.55% of Marshall County, Iowa residents were born in the United States, with 67.75% having been born in Iowa. 9.31% 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

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources