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CITY · 2000 CENSUS

Marengo

Illinois · 6,355 residents · 8.902 sq mi
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The short version

Marengo is wealthier than most US places, with a median household income of $50,214. Population has grown 33% since 1990. 14% of adults hold a bachelor's degree or higher, below the national rate of 24%. Median home value has risen by half since 1990, reaching $137,700. Poverty is rare here, at 4.4% of residents.

At a glance
Wealthier
above the US median
US median: $42,589
Younger
median age 33.5
US median: 35.2
Less educated
14% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

6,355
+33%since 1990
from 4,768 in 1990
1990 – 2025
714 / sq mi
+33%since 1990
from 536 / sq mi in 1990
US average: 242
33.5
+3%since 1990
from 32.5 in 1990
US average: 35.2
Population, 19902024
4K6K7K8K9K1990201020202024Marengo
20247K
1990201020202024
Section 02

Income & economy

$50,214
+15%inflation adjusted, since 1990
from $33,152 in 1990
US average: $42,589
1990 – 2024
$22,225
+62%since 1990
from $13,757 in 1990
US average: $21,522
4.4%
+0.1 ptssince 1990
from 4.3% in 1990
US average: 12.4%
Section 03

Housing

$137,700
+20%inflation adjusted, since 1990
from $87,200 in 1990
US average: $120,530
1990 – 2024
$645
+12%inflation adjusted, since 1990
from $438 in 1990
US average: $602
65.4%
+4.2 ptssince 1990
from 61.2% in 1990
34.6% rent
2.7
+4%since 1990
from 2.6 in 1990
1990 – 2024
RELATED:See current rent listings in Marengo on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic96.1%(4,581)
Black1.9%(89)
Hispanic / Latino5.9%(280)
Asian0%(0)
Diversity Score21.6%(1,029)
2000
White, non-Hispanic85.6%(5,441)
Black0.3%(16)
Hispanic / Latino13%(826)
Asian0.3%(18)
Diversity Score29.6%(1,884)
30
+37%since 1990
from 22 in 1990
1990 – 2024
Section 05

Education

14.0%
+1.4 ptssince 1990
from 12.6% in 1990
US average: 24.4%
High school or higher
85.7%
+5.1 ptssince 1990
from 80.6% in 1990
US average: 80.3%
4.0%
+0.4 ptssince 1990
from 3.6% in 1990
US average: 8.8%
Section 06

Commute & transportation

22.2 min
−12%since 1990
from 25.1 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Marengo, Illinois?

Marengo, Illinois has about 6,355 residents according to the 2000 Census.

What is the median household income in Marengo, Illinois?

The typical household in Marengo, Illinois earns about $50,214 a year. Half of households make more than that, and half make less.

Is Marengo, Illinois expensive?

In Marengo, Illinois, the median home is worth about $137,700, and the typical rent is about $645 a month.

How educated are people in Marengo, Illinois?

About 14.0% of adults age 25 and over in Marengo, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Marengo, Illinois?

About 4.4% of people in Marengo, Illinois live below the federal poverty line.

Has Marengo, Illinois grown since 1990?

Yes, Marengo, Illinois has grown since 1990. The population has added about 1,587 residents, a change of about 33 percent over that period.

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

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