Marengo, Iowa Population 2022

2,490
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Marengo is a city located in Iowa County Iowa. Marengo has a 2020 population of 2,490. It is also the county seat of Iowa County. Marengo is currently growing at a rate of 0.32% annually but its population has decreased by -1.27% since the most recent census, which recorded a population of 2,522 in 2010.

The average household income in Marengo is $67,762 with a poverty rate of 9.79%. The median rental costs in recent years comes to $589 per month, and the median house value is $98,500. The median age in Marengo is 39.8 years, 37 years for males, and 40.8 years for females.

Marengo Demographics

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

  • White: 95.85%
  • Other race: 2.82%
  • Two or more races: 0.56%
  • Asian: 0.28%
  • Black or African American: 0.24%
  • Native American: 0.24%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Marengo, Iowa is 2,490 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 2,490.The last official US Census in 2010 recorded the population at 2,522.

Marengo, Iowa Population 2022

Population by Race

Race Population Percentage
White2,38095.85%
Some Other Race702.82%
Two or More Races140.56%
Asian70.28%
American Indian and Alaska Native60.24%
Black or African American60.24%
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Marengo Population by Race

Marengo Population Pyramid $2022

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Marengo Median Age

39.8


Total

37


Male

40.8


Female

Marengo Adults

There are 1,851 adults, (540 of whom are seniors) in Marengo.

Marengo Age Dependency

Age Dependency Ratio

41.2

Old Age Dependency Ratio

48.2

Child Dependency Ratio

Marengo Sex Ratio

Female

1,342

54.05%

Male

1,141

45.95%

Marengo Population by Age

Marengo Renter vs Owner Occupied by Household Type

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Marengo Household Types

Type Owner Renter
Female41.4%58.6%
Non Family61.1%38.9%
Male68.8%31.3%
All71.8%28.2%
Married89.1%10.9%

71.8%

Rate of Home Ownership

Marengo Households and Families

Type Count Average Size Owned
All1,0852.2271.8
Married4762.8989.1
Non Family4341.1561.1
Female1112.6741.4
Male643.6168.8

2.85

Average Family Size

2.22

Average Household Size

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Marengo Households by Type

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Education Attained Count Percentage
Less Than 9th Grade482.93%
9th to 12th Grade1146.96%
High School Graduate71043.35%
Some College45327.66%
Associates Degree1388.42%
Bachelors Degree1328.06%
Graduate Degree432.63%
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Marengo Educational Attainment by Sex (over 25)

Marengo Educational Attainment by Race

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Race Total High School Bachelors
White1,5751,437164
Hispanic502611
Other Race24
Asian77
Native American66
Black66

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

The highest rate of bachelors degrees is among hispanic people with a rate of 22.00%.

Marengo Educational Attainment by Race

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Name Average Male Female
Overall$39,099$48,125$35,000
Less Than 9th Grade$$$15,625
High School Graduate$31,488$39,946$21,833
Some College$42,250$52,614$37,652
Bachelors Degree$55,063$95,625$49,405
Graduate Degree$73,036$73,929$

$39,099

Average Earnings

$48,125

Average Male

$35,000

Average Female

Marengo Earnings by Educational Attainment

Marengo Language by Age

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Marengo Language

95.49% of Marengo residents speak only English, while 4.51% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.21% of the population.

Marengo Language

Marengo Poverty by Race

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Name Total In Poverty Poverty Rate
White2,2521717.59%
Hispanic1276248.82%
Other51NaN%

9.79%

Overall Poverty Rate

7.99%

Male Poverty Rate

11.32%

Female Poverty Rate

Poverty in Marengo

The race most likely to be in poverty in Marengo is White, with 7.59% below the poverty level.

The race least likely to be in poverty in Marengo is Hispanic, with 48.82% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.95%. Among those working part-time, it was 16.58%, and for those that did not work, the poverty rate was 16.35%.

Marengo Poverty

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Name Poverty
Less Than 9th Grade25.49%
High School9.02%
Bachelors or Greater6.29%
Some College2.41%

Marengo Poverty Rate by Education

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Rate Poverty
Female Unemployed0.00%
Male Employed7.27%
Female Employed6.41%
Male Unemployed0.00%

Marengo Poverty Rate by Employment Status and Sex

Marengo Income by Household Type

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Name Median Mean
Households$54,180$67,762
Families$69,375$77,098
Married Families$83,167-
Non Families$37,500$51,850
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Income by Household Type

Marengo Marital Status

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Marriage Rates

49.6%

Overall Marriage Rate

51.1%

Male Marriage Rate

48.2%

Female Marriage Rate

Marengo Married by Age and Sex

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Marengo Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Marengo Marital Status by Race

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Marengo Marital Status

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155

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Vietnam60
Korea32
First Gulf War19
Second Gulf War5
World War II3

Marengo Veterans by War

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Age Group Veterans
65 to 7461
75+42
35 to 5427
55 to 6420
18 to 345

Marengo Veterans by Age

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Marengo Veterans by Race

Marengo Veterans by Education

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3.33%

Veteran Poverty Rate

31.33%

Veteran Disability Rate

Marengo Veterans by Education

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66.3%

Labor Force Participation

64.5%

Employment Rate

2.7%

Unemployment Rate

Marengo Employment by Age

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Marengo Employment by Race

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Marengo 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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82.68%

Born in Marengo

97.66%

Native Born

2.34%

Foreign Born

1.57%

Non Citizen

0.77%

Naturalized

Place of Birth

97.66% of Marengo residents were born in the United States, with 82.68% having been born in Iowa. 1.57% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Marengo Place of Birth

Note: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
20222,49080.32%
20212,48280.32%
20202,47480.32%
20192,46680.33%
20182,4580.00%
20172,458-12-0.49%
20162,470-11-0.44%
20152,481-17-0.68%
20142,49820.08%
20132,49670.28%
20122,489-28-1.11%
20112,517-5-0.20%
20102,522-13-0.05%
20002,5350.00%

Marengo Population by Year