Marshalltown, Iowa Population 2020

27,090
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Marshalltown is a city located in Iowa. With a 2020 population of 27,090, it is the 16th largest city in Iowa and the 1416th largest city in the United States. Marshalltown is currently growing at a rate of 0.04% annually but its population has decreased by -1.68% since the most recent census, which recorded a population of 27,552 in 2010. Marshalltown reached it's highest population of 27,830 in 2013. Spanning over 19 miles, Marshalltown has a population density of 1,405 people per square mile.

The average household income in Marshalltown is $61,107 with a poverty rate of 13.02%. The median rental costs in recent years comes to $676 per month, and the median house value is $95,900. The median age in Marshalltown is 37.1 years, 36.6 years for males, and 37.5 years for females. For every 100 females there are 100.1 males.

Marshalltown Demographics

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

  • White: 79.62%
  • Other race: 10.58%
  • Asian: 5.10%
  • Two or more races: 3.02%
  • Black or African American: 1.20%
  • Native American: 0.42%
  • Native Hawaiian or Pacific Islander: 0.05%
The current population of Marshalltown, Iowa is 27,090, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 27,068.The last official US Census in 2010 recorded the population at 27,552.

Marshalltown, Iowa Population 2020

2019 and 2020 population is estimated by projecting the raw 2018 numbers.

Year Total Population Growth Annual Growth Rate
202039,647-167-0.42%
201939,814-167-0.42%
201839,981-167-0.42%
201740,148190.05%
201640,129-235-0.59%
201540,364-371-0.92%
201440,735-272-0.67%
201341,007-30-0.07%
201241,037240.06%
201141,0132910.71%
201040,7220.00%

Population by Race

Race Population Percentage
White21,71779.62%
Some Other Race2,88710.58%
Asian1,3915.10%
Two or More Races8253.02%
Black or African American3271.20%
American Indian and Alaska Native1150.42%
Native Hawaiian and Other Pacific Islander130.05%
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Marshalltown Population Pyramid 2020

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Marshalltown Median Age

37.1


Total

36.6


Male

37.5


Female

Marshalltown Adults

There are 20,312 adults, (4,714 of whom are seniors) in Marshalltown.

Marshalltown Age Dependency

74.9

Age Dependency Ratio

30.2

Old Age Dependency Ratio

44.6

Child Dependency Ratio

Marshalltown Sex Ratio

Female

13,634

49.99%

Male

13,641

50.01%

Marshalltown Households and Families

Marshalltown Renter vs Owner Occupied by Household Type

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Marshalltown Household Types

Type Owner Renter
Male80.3%19.7%
Married79.9%20.1%
All65.3%34.7%
Non Family51.9%48.1%
Female39.6%60.4%

65.3%

Rate of Home Ownership

Type Count Average Size Owned
All10,2312.5765.3
Married5,0053.2979.9
Non Family3,8381.2751.9
Female1,0373.539.6
Male3513.7980.3

3.25

Average Family Size

2.57

Average Household Size

8.3%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

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Marshalltown Education

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Education Attained Count Percentage
Less Than 9th Grade2,22612.66%
9th to 12th Grade1,5668.91%
High School Graduate5,58531.77%
Some College3,54020.14%
Associates Degree1,4258.11%
Bachelors Degree2,16812.33%
Graduate Degree1,0696.08%
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Marshalltown Educational Attainment by Race

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Name Total High School Bachelors
White12,59211,6512,955
Hispanic3,6151,367135
Other Race1,33339840
Asian803227104
Multiple Races30727937
Black2642206
Native American9898
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 white people with a rate of 23.47%.

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Name Average Male Female
Overall$35,638$41,709$28,361
Less Than High School$32,055$34,693$26,855
High School Grad$31,719$40,097$24,784
Some College$36,446$46,810$29,438
Bachelors Degree$46,346$68,813$31,344
Graduate Degree$73,894$81,034$61,905

$35,638

Average Earnings

$41,709

Average Male

$28,361

Average Female

Marshalltown Language

Marshalltown Language by Age

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Marshalltown Language

69.27% of Marshalltown residents speak only English, while 30.73% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 25.30% of the population.

Marshalltown Poverty

Marshalltown Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic8,0891,60019.78%
White15,6111,5369.84%
Other2,88746916.25%
Multiple80811514.23%
Black30810333.44%
Asian1,385725.20%
Native1091110.09%

13.02%

Overall Poverty Rate

12.15%

Male Poverty Rate

13.86%

Female Poverty Rate

Poverty in Marshalltown

The race most likely to be in poverty in Marshalltown is Black, with 33.44% below the poverty level.

The race least likely to be in poverty in Marshalltown is Asian, with 5.20% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.39%. Among those working part-time, it was 15.48%, and for those that did not work, the poverty rate was 20.00%.

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Name Poverty
Less Than High School14.86%
High School14.00%
Some College8.30%
Bachelors or Greater3.17%
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Name Poverty
Female Unemployed50.35%
Male Unemployed32.59%
Female Employed8.22%
Male Employed5.94%

Marshalltown Income

Marshalltown Income by Household Type

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Name Median Mean
Households$50,612$61,107
Families$60,524$71,096
Married Families$68,896-
Non Families$31,888$42,034
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Marshalltown Marital Status

Marshalltown Marital Status

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Marriage Rates

50.6%

Overall Marriage Rate

52.6%

Male Marriage Rate

48.6%

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 45-54.

Marshalltown Marital Status by Race

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Marshalltown Veterans

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1,922

Number of Veterans

1,807

Male Veterans

115

Female Veterans

War Veterans
Vietnam742
First Gulf War243
Korea198
Second Gulf War160
World War II144
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Age Group Veterans
75+641
65 to 74521
55 to 64357
35 to 54283
18 to 34120
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Name Veterans % of Total
White1,87611.24%
Indian3029.41%
Hispanic240.52%
Other90.50%
2 or More71.77%

Marshalltown Veterans by Education

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4.38%

Veteran Poverty Rate

39.33%

Veteran Disability Rate

Marshalltown Employment Status

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63.3%

Labor Force Participation

59.8%

Employment Rate

5.5%

Unemployment Rate

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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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63.43%

Born in Iowa

82.05%

Native Born

17.95%

Foreign Born

13.52%

Non Citizen

4.43%

Naturalized

Place of Birth

82.05% of Marshalltown residents were born in the United States, with 63.43% having been born in Iowa. 13.52% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
202027,090110.04%
201927,079110.04%
201827,068-113-0.42%
201727,181110.04%
201627,170-184-0.67%
201527,354-263-0.95%
201427,617-213-0.77%
201327,83050.02%
201227,825480.17%
201127,7771730.63%
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%