Marshalltown, Iowa Population 2021

26,030
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Marshalltown is a city located in Marshall County Iowa. It is also the county seat of Marshall County. With a 2020 population of 26,030, it is the 18th largest city in Iowa and the 1483rd largest city in the United States . Marshalltown is currently declining at a rate of -1.21% annually and its population has decreased by -5.52% since the most recent census, which recorded a population of 27,552 in 2010. Marshalltown reached it's highest population of in . Spanning over 19 miles, Marshalltown has a population density of 1,350 people per square mile.

The average household income in Marshalltown is $62,565 with a poverty rate of 14.79%. The median rental costs in recent years comes to $685 per month, and the median house value is $94,300. The median age in Marshalltown is 36.7 years, 35.9 years for males, and 37.5 years for females.

Marshalltown Demographics

According to the most recent ACS, the racial composition of Marshalltownwas:

  • White: 81.09%
  • Other race: 8.99%
  • Asian: 5.18%
  • Two or more races: 2.71%
  • Black or African American: 1.62%
  • Native American: 0.36%
  • Native Hawaiian or Pacific Islander: 0.05%
The current population of Marshalltown, Iowa is 26,030 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 26,666.The last official US Census in 2010 recorded the population at 27,552.

Marshalltown, Iowa Population 2021

2020 and 2021 population is estimated by projecting the 2019 numbers.

Year Population Growth Growth Rate
202138,331-519-1.35%
202038,850-519-1.34%
201939,369-519-1.32%
201839,888-190-0.48%
201740,078-57-0.14%
201640,135-217-0.54%
201540,352-370-0.92%
201440,722-273-0.67%
201340,995-37-0.09%
201241,032190.05%
201141,0132910.71%
201040,7220.00%

Marshalltown Metro Area Population by Year

Population by Race

Race Population Percentage
White21,93881.09%
Some Other Race2,4328.99%
Asian1,4025.18%
Two or More Races7332.71%
Black or African American4381.62%
American Indian and Alaska Native970.36%
Native Hawaiian and Other Pacific Islander130.05%
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Marshalltown Population by Race

Marshalltown Population Pyramid $2021

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Marshalltown Median Age

36.7


Total

35.9


Male

37.5


Female

Marshalltown Adults

There are 20,189 adults, (4,871 of whom are seniors) in Marshalltown.

Marshalltown Age Dependency

76.6

Age Dependency Ratio

31.8

Old Age Dependency Ratio

44.8

Child Dependency Ratio

Marshalltown Sex Ratio

Female

13,290

49.13%

Male

13,763

50.87%

Marshalltown Population by Age

Marshalltown Renter vs Owner Occupied by Household Type

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Marshalltown Household Types

Type Owner Renter
Female39.9%60.1%
Non Family48.7%51.3%
All64.7%35.3%
Male77.8%22.2%
Married81.3%18.7%

64.7%

Rate of Home Ownership

Marshalltown Households and Families

Type Count Average Size Owned
All10,2732.5364.7
Married4,9003.2181.3
Non Family3,8991.2648.7
Female1,0093.5139.9
Male4653.8377.8

3.19

Average Family Size

2.53

Average Household Size

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Marshalltown Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2,20912.63%
9th to 12th Grade1,5138.65%
High School Graduate5,75732.91%
Some College3,26818.68%
Associates Degree1,5738.99%
Bachelors Degree2,24412.83%
Graduate Degree9315.32%
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Marshalltown Educational Attainment by Sex (over 25)

Marshalltown Educational Attainment by Race

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Race Total High School Bachelors
White12,34811,3482,798
Hispanic3,7051,597150
Other Race1,08942046
Asian807250133
Black3612886
2+ Races27024288
Native American8181
Islander1313

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 32.59%.

Marshalltown Educational Attainment by Race

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Name Average Male Female
Overall$36,700$43,359$29,299
Less Than 9th Grade$32,079$34,885$27,213
High School Graduate$34,601$41,477$24,125
Some College$37,748$47,816$30,118
Bachelors Degree$46,146$57,500$34,688
Graduate Degree$77,639$90,268$62,054

$36,700

Average Earnings

$43,359

Average Male

$29,299

Average Female

Marshalltown Earnings by Educational Attainment

Marshalltown Language by Age

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Marshalltown Language

68.06% of Marshalltown residents speak only English, while 31.94% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 26.36% of the population.

Marshalltown Language

Marshalltown Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic8,2961,87522.60%
White15,1151,72111.39%
Other2,43232813.49%
Asian1,394976.96%
Black4089623.53%
Multiple712628.71%
Native951414.74%

14.79%

Overall Poverty Rate

13.70%

Male Poverty Rate

15.89%

Female Poverty Rate

Poverty in Marshalltown

The race most likely to be in poverty in Marshalltown is Black, with 23.53% below the poverty level.

The race least likely to be in poverty in Marshalltown is Asian, with 6.96% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.95%. Among those working part-time, it was 16.83%, and for those that did not work, the poverty rate was 21.95%.

Marshalltown Poverty

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Name Poverty
Less Than 9th Grade16.16%
High School15.78%
Some College9.96%
Bachelors or Greater6.41%

Marshalltown Poverty Rate by Education

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Rate Poverty
Female Unemployed29.39%
Male Unemployed28.54%
Female Employed11.03%
Male Employed7.22%

Marshalltown Poverty Rate by Employment Status and Sex

Marshalltown Income by Household Type

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Name Median Mean
Households$52,035$62,565
Families$63,280$73,889
Married Families$74,504-
Non Families$32,340$40,822
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Income by Household Type

Marshalltown Marital Status

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Marriage Rates

50.2%

Overall Marriage Rate

50.9%

Male Marriage Rate

49.4%

Female Marriage Rate

Marshalltown Married by Age and Sex

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Marshalltown 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.

Marshalltown Marital Status by Race

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Marshalltown Marital Status

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2,004

Number of Veterans

1,887

Male Veterans

117

Female Veterans

War Veterans
Vietnam736
First Gulf War278
Korea206
World War II139
Second Gulf War136

Marshalltown Veterans by War

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Age Group Veterans
75+690
65 to 74557
55 to 64350
35 to 54331
18 to 3476

Marshalltown Veterans by Age

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Name Veterans % of Total
White1,94611.49%
Hispanic360.76%
Native American3543.21%
Other Race140.99%
2+ Races92.88%

Marshalltown Veterans by Race

Marshalltown Veterans by Education

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4.49%

Veteran Poverty Rate

37.02%

Veteran Disability Rate

Marshalltown Veterans by Education

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62.7%

Labor Force Participation

59.3%

Employment Rate

5.4%

Unemployment Rate

Marshalltown Employment by Age

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Marshalltown Employment by Race

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Marshalltown 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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61.18%

Born in Marshalltown

81.34%

Native Born

18.66%

Foreign Born

13.37%

Non Citizen

5.29%

Naturalized

Place of Birth

81.34% of Marshalltown residents were born in the United States, with 61.18% having been born in Iowa. 13.37% 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: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
202126,030-318-1.21%
202026,348-318-1.19%
201926,666-318-1.18%
201826,984-140-0.52%
201727,124-53-0.20%
201627,177-170-0.62%
201527,347-262-0.95%
201427,609-214-0.77%
201327,8230.00%
201227,823470.17%
201127,7761720.62%
201027,6041,5950.60%
200026,0098310.33%
199025,178-1,760-0.67%
198026,9387190.27%
197026,2193,6981.53%
196022,5212,7001.29%
195019,8215810.30%
194019,2401,8671.03%
193017,3731,6421.00%
192015,7312,3571.64%
191013,3741,8301.48%
190011,5442,6302.62%
18908,9142,6743.63%
18806,2403,0226.85%
18703,2180.00%

Marshalltown Population by Year