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CITY

Marengo

Iowa · 2,425 residents (2025 est.) · 2.115 sq mi
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The short version

Marengo has notably lower household income than the US average, with a median household income of $57,941. Population has held roughly steady since 2000. 13% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has risen by half since 2000, reaching $123,200.

At a glance
Lower income
below the US median
US median: $82,259
Mid-age
median age 39.6
US median: 38.9
Less educated
13% hold a bachelor's degree
US average: 36%
More affordable
home values down 6%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
2,725
+7%since 2000
from 2,535 in 2000
1990 – 2025
Population density
1,288 / sq mi
+7%since 2000
from 1,199 / sq mi in 2000
US average: 281
Median age
39.6
+4%since 2000
from 38.2 in 2000
US average: 38.9

PEP 2025 EST:2,425 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
2K2K3K3K3K1990201020202024Marengo
20243K
1990201020202024
Section 02

Income & economy

Median household income
$57,941
−13%inflation adjusted, since 2000
from $36,509 in 2000
US average: $82,259
1990 – 2024
Per capita income
$29,735
+71%since 2000
from $17,425 in 2000
US average: $44,673
Households earning $100K+
32.1%
+7.6 ptssince 2009
from 24.5% in 2009
US average: 53.3%
Poverty rate
13.2%
+6.0 ptssince 2000
from 7.3% in 2000
US average: 12.5%
Income inequality (Gini)
0.357
−5%since 2010
from 0.374 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade18.5%
US avg: 9.9%
Information16.3%
US avg: 10.8%
Finance & insurance5.1%
US avg: 5.9%
Wholesale trade4.8%
US avg: 6.9%
Professional, scientific, technical4.5%
US avg: 5.1%
Agriculture, forestry, fishing2.7%
US avg: 1.6%
Construction2.7%
US avg: 1.2%
Transportation & warehousing2.6%
US avg: 2.2%
Other services2.2%
US avg: 6.7%
Public administration2.2%
US avg: 4.8%
Arts, entertainment, food0.7%
US avg: 1.9%
Education & health services0.5%
US avg: 0.9%
Manufacturing0%
US avg: 0.4%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$123,200
−6%inflation adjusted, since 2000
from $71,800 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$700
−1%inflation adjusted, since 2000
from $387 in 2000
US average: $1,442
Owner-occupied
69.2%
−3.3 ptssince 2000
from 72.5% in 2000
30.8% rent
Vacancy rate
7.4%
+2.4 ptssince 2009
from 5.0% in 2009
US average: 10.0%
Owner cost-burdened
20.9%
+1.2 ptssince 2009
from 19.7% in 2009
US average: 22.9%
Renter cost-burdened
35.3%
+7.8 ptssince 2009
from 27.6% in 2009
US average: 47.4%
Afford Score
2.1
+8%since 2000
from 2.0 in 2000
1990 – 2024
Gentrification Score
27
RELATED:See current rent listings in Marengo on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic97.4%(2,470)
Black0.3%(7)
Hispanic / Latino1.1%(29)
Asian0.7%(17)
Other0%
Diversity Score5.2%(131)
2024
White, non-Hispanic94.9%(2,586)
Black1.1%(31)
Hispanic / Latino0.3%(8)
Asian0%(0)
Other3.7%(100)
Diversity Score12.2%(334)
Diversity Score
12
+137%since 2000
from 5 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
12.9%
+3.8 ptssince 2000
from 9.2% in 2000
US average: 35.6%
High school or higher
91.4%
+4.9 ptssince 2000
from 86.5% in 2000
US average: 89.6%
Graduate degree
2.7%
−0.2 ptssince 2000
from 3.0% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
20.2 min
+37%since 2000
from 14.8 min in 2000
US average: 26.5
Drive alone to work
81.1%
+0.3 ptssince 2009
from 80.9% in 2009
US average: 68.9%
Carpooled to work
9.0%
−3.1 ptssince 2009
from 12.1% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
5.7%
+4.9 ptssince 2009
from 0.8% in 2009
US average: 15.0%
Walked to work
3.5%
−0.8 ptssince 2009
from 4.4% in 2009
US average: 2.4%
Biked to work
0.3%
−0.6 ptssince 2009
from 0.9% in 2009
US average: 0.4%
No vehicle available
12.2%
+6.7 ptssince 2009
from 5.4% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
1.8%
−2.8 ptssince 2011
from 4.7% in 2011
US average: 5.2%
Labor force participation
66.3%
−2.8 ptssince 2011
from 69.1% in 2011
US average: 63.5%
Self-employed
14.4%
+2.2 ptssince 2009
from 12.2% in 2009
US average: 13.1%
Management & professional
26.6%
−30.9 ptssince 2009
from 57.5% in 2009
US average: 42.5%
Section 08

People & community

Male
49.0%
+1.3 ptssince 2009
from 47.7% in 2009
Female
51.0%
−1.3 ptssince 2009
from 52.3% in 2009
Foreign born
1.2%
+0.2 ptssince 2009
from 1.0% in 2009
US average: 14.1%
Veterans
6.8%
−40.1 ptssince 2009
from 47.0% in 2009
US average: 6.2%
With a disability
18.1%
+5.2 ptssince 2012
from 12.9% in 2012
US average: 13.3%
Uninsured
4.7%
−86.7 ptssince 2013
from 91.4% in 2013
US average: 8.4%
Broadband at home
78.5%
+13.9 ptssince 2017
from 64.6% in 2017
US average: 91.0%
English only at home
98.9%
+4.8 ptssince 2016
from 94.1% in 2016
US average: 77.7%
Spanish at home
0.5%
−5.1 ptssince 2016
from 5.6% in 2016
US average: 13.6%
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Frequently asked

How many people live in Marengo, Iowa?

Marengo, Iowa has about 2,725 residents according to the 2024 American Community Survey.

What is the median household income in Marengo, Iowa?

The typical household in Marengo, Iowa earns about $57,941 a year. Half of households make more than that, and half make less.

Is Marengo, Iowa expensive?

In Marengo, Iowa, the median home is worth about $123,200, and the typical rent is about $700 a month.

How educated are people in Marengo, Iowa?

About 12.9% of adults age 25 and over in Marengo, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Marengo, Iowa?

About 13.2% of people in Marengo, Iowa live below the federal poverty line.

Has Marengo, Iowa grown since 1990?

Yes, Marengo, Iowa has grown since 1990. The population has added about 455 residents, a change of about 20 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →