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CITY · 1990 CENSUS

Mendon

Illinois · 818 residents · 0.857 sq mi
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The short version

Mendon has lower-than-average household income, with a median household income of $23,839. Population has declined 7% since 2000. 9% of adults hold a bachelor's degree or higher, below the national rate of 20%. Median home value is $34,600. Households here earn about 26% less than the Illinois median.

At a glance
Lower income
below the US median
US median: $30,130
Younger
median age 29.6
US median: 33.0
Less educated
9% hold a bachelor's degree
US average: 20%
More affordable
home values down 28%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

818
−7%vs 2000
vs 883 in 2000
1990 – 2025
954 / sq mi
−7%vs 2000
vs 1,030 / sq mi in 2000
US average: 221
29.6
−16%vs 2000
vs 35.1 in 2000
US average: 33.0
Population, 19902024
6978259541K1K1990201020202024Mendon
20241K
1990201020202024
Section 02

Income & economy

$23,839
−11%inflation adjusted, since 2000
vs $35,139 in 2000
US average: $30,130
1990 – 2024
$8,954
−41%vs 2000
vs $15,267 in 2000
US average: $14,340
13.2%
+5.2 ptsvs 2000
vs 8.0% in 2000
US average: 13.2%
Section 03

Housing

$34,600
−28%inflation adjusted, since 2000
vs $63,000 in 2000
US average: $93,722
1990 – 2024
$220
−13%inflation adjusted, since 2000
vs $334 in 2000
US average: $450
74.8%
−2.2 ptsvs 2000
vs 77.0% in 2000
25.2% rent
1.5
−19%vs 2000
vs 1.8 in 2000
1990 – 2024
RELATED:See current rent listings in Mendon on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic99.3%(877)
Black0.1%(1)
Hispanic / Latino0.5%(4)
Asian0%(0)
Other0%
Diversity Score1.4%(12)
1990
White, non-Hispanic99.1%(811)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0.9%(7)
Diversity Score2.1%(17)
2
+50%vs 2000
vs 1 in 2000
1990 – 2024
Section 05

Education

9.3%
−0.5 ptsvs 2000
vs 9.8% in 2000
US average: 20.3%
High school or higher
72.8%
−7.9 ptsvs 2000
vs 80.8% in 2000
US average: 75.2%
1.9%
+0.1 ptsvs 2000
vs 1.8% in 2000
US average: 7.1%
Section 06

Commute & transportation

24.1 min
+86%vs 2000
vs 13.0 min in 2000
US average: 21.9
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 Mendon, Illinois?

Mendon, Illinois has about 818 residents according to the 1990 Census.

What is the median household income in Mendon, Illinois?

The typical household in Mendon, Illinois earns about $23,839 a year. Half of households make more than that, and half make less.

Is Mendon, Illinois expensive?

In Mendon, Illinois, the median home is worth about $34,600, and the typical rent is about $220 a month.

How educated are people in Mendon, Illinois?

About 9.3% of adults age 25 and over in Mendon, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Mendon, Illinois?

About 13.2% of people in Mendon, Illinois live below the federal poverty line.

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

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