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CITY · 2000 CENSUS

Mendon

Illinois · 883 residents · 0.86 sq mi
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The short version

With 883 people, Mendon is a city in Illinois. Four-year degrees are less common here than nationally, at 10% of adults. 77% of homes are owner-occupied. The typical home is worth $63,000, having more than doubled since 1990. Households here earn about 25% less than in Illinois as a whole. Renters pay $334 a month at the median.

At a glance
Lower income
below the US median
US median: $42,589
Mid-age
median age 35.1
US median: 35.2
Less educated
10% hold a bachelor's degree
US average: 24%
Less affordable
home values up 38%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

883
+8%since 1990
from 818 in 1990
1990 – 2025
35.1
+19%since 1990
from 29.6 in 1990
US average: 35.2
Land area
0.86 sq mi
Population, 19902024
6978259541K1K19902000201020202024Mendon
20241K
1990201020202024
Age distribution, 2000
Under 58.8%(78)
US avg: 6.8%
5 to 96.5%(57)
US avg: 7.3%
10 to 147.5%(66)
US avg: 7.3%
15 to 198.4%(74)
US avg: 7.2%
20 to 245.8%(51)
US avg: 6.7%
25 to 3413%(115)
US avg: 14.2%
35 to 4414.4%(127)
US avg: 16%
45 to 5412.6%(111)
US avg: 13.4%
55 to 648.9%(79)
US avg: 8.6%
65 to 745.8%(51)
US avg: 6.5%
75 to 846.2%(55)
US avg: 4.4%
85 and over2.2%(19)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$35,139
+12%inflation adjusted, since 1990
from $23,839 in 1990
US average: $42,589
1990 – 2024
$15,267
+71%since 1990
from $8,954 in 1990
US average: $21,522
8.0%
−5.2 ptssince 1990
from 13.2% in 1990
US average: 12.4%
Section 03

Housing

$63,000
+38%inflation adjusted, since 1990
from $34,600 in 1990
US average: $120,530
1990 – 2024
$334
+15%inflation adjusted, since 1990
from $220 in 1990
US average: $602
77.0%
+2.2 ptssince 1990
from 74.8% in 1990
23.0% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic99.1%(811)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
2000
White, non-Hispanic99.3%(877)
Black0.1%(1)
Hispanic / Latino0.5%(4)
Asian0%(0)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican1%(12)
Ancestry
German21.1%(246)
Irish6.7%(78)
English6.3%(73)
American4.4%(51)
French1.3%(15)
Dutch0.7%(8)
Swedish0.6%(7)
Scottish0.3%(4)
Greek0.3%(3)
Czech0.2%(2)
Polish0.2%(2)
Section 05

Education

9.8%
+0.5 ptssince 1990
from 9.3% in 1990
US average: 24.4%
High school or higher
80.8%
+7.9 ptssince 1990
from 72.8% in 1990
US average: 80.3%
1.8%
−0.1 ptssince 1990
from 1.9% in 1990
US average: 8.8%
Section 06

Commute & transportation

13.0 min
−46%since 1990
from 24.1 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.

Marital status
Men 15+
Never married24%(80)
Married63.5%(212)
Widowed4.2%(14)
Divorced8.4%(28)
Women 15+
Never married18.1%(63)
Married58%(202)
Widowed15.8%(55)
Divorced8%(28)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

3.9%
−2.1 ptssince 2013
from 6.0% in 2013
US average: 8.4%
69.1%
−6.9 ptssince 2020
from 76.0% in 2020
US average: 54.8%
Direct-purchase
5.4%
−5.8 ptssince 2020
from 11.2% in 2020
US average: 13.8%
15.0%
+0.2 ptssince 2020
from 14.8% in 2020
US average: 18.4%
18.2%
+7.2 ptssince 2020
from 11.0% in 2020
US average: 20.9%
VA health care
1.1%
−2.2 ptssince 2020
from 3.3% in 2020
US average: 2.2%
Any private
74.4%
−10.4 ptssince 2020
from 84.8% in 2020
US average: 67.1%
Any public
30.3%
+6.0 ptssince 2020
from 24.3% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)22.5%(23)
US avg: 26.4%
Gulf War (1990s)32.4%(33)
US avg: 24.3%
Vietnam era33.3%(34)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%

Share of the 102 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Mendon, Illinois?

Mendon, Illinois has about 883 residents according to the 2000 Census.

What is the median household income in Mendon, Illinois?

The typical household in Mendon, Illinois earns about $35,139 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 $63,000, and the typical rent is about $334 a month.

How educated are people in Mendon, Illinois?

About 9.8% 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 8.0% of people in Mendon, Illinois live below the federal poverty line.

Has Mendon, Illinois grown since 1990?

Yes, Mendon, Illinois has grown since 1990. The population has added about 65 residents, a change of about 8 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 →