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CITY

Mendon

Illinois · 844 residents (2025 est.) · 0.857 sq mi
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The short version

Mendon has lower-than-average household income, with a median household income of $65,781. Population has grown 32% 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 $111,600.

At a glance
Lower income
below the US median
US median: $82,259
Mid-age
median age 37.6
US median: 38.9
Less educated
13% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
1,167
+32%since 2000
from 883 in 2000
1990 – 2025
Population density
1,362 / sq mi
+32%since 2000
from 1,030 / sq mi in 2000
US average: 281
Median age
37.6
+7%since 2000
from 35.1 in 2000
US average: 38.9

PEP 2025 EST:844 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
6978259541K1K1990201020202024Mendon
20241K
1990201020202024
Section 02

Income & economy

Median household income
$65,781
+3%inflation adjusted, since 2000
from $35,139 in 2000
US average: $82,259
1990 – 2024
Per capita income
$28,602
+87%since 2000
from $15,267 in 2000
US average: $44,673
Households earning $100K+
39.8%
+14.5 ptssince 2009
from 25.2% in 2009
US average: 53.3%
Poverty rate
15.7%
+7.7 ptssince 2000
from 8.0% in 2000
US average: 12.5%
Income inequality (Gini)
0.374
+6%since 2010
from 0.352 in 2010
US average: 0.476
Workforce by industry, 2024
Information35.4%
US avg: 10.8%
Retail trade9.3%
US avg: 9.9%
Finance & insurance5.7%
US avg: 5.9%
Professional, scientific, technical5.7%
US avg: 5.1%
Transportation & warehousing4.5%
US avg: 2.2%
Wholesale trade4.1%
US avg: 6.9%
Agriculture, forestry, fishing1.7%
US avg: 1.6%
Construction1.7%
US avg: 1.2%
Other services1.4%
US avg: 6.7%
Public administration1.4%
US avg: 4.8%
Arts, entertainment, food0.7%
US avg: 1.9%
Manufacturing0%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$111,600
−3%inflation adjusted, since 2000
from $63,000 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$667
+10%inflation adjusted, since 2000
from $334 in 2000
US average: $1,442
Owner-occupied
78.8%
+1.8 ptssince 2000
from 77.0% in 2000
21.2% rent
Vacancy rate
7.1%
+1.2 ptssince 2009
from 5.9% in 2009
US average: 10.0%
Owner cost-burdened
17.1%
−1.4 ptssince 2009
from 18.5% in 2009
US average: 22.9%
Renter cost-burdened
33.0%
−37.7 ptssince 2009
from 70.7% in 2009
US average: 47.4%
Afford Score
1.7
−5%since 2000
from 1.8 in 2000
1990 – 2024
Gentrification Score
33
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)
2024
White, non-Hispanic96.1%(1,122)
Black0%(0)
Hispanic / Latino1%(12)
Asian0%(0)
Other2.8%(33)
Diversity Score9.3%(109)
Diversity Score
9
+562%since 2000
from 1 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
12.9%
+3.1 ptssince 2000
from 9.8% in 2000
US average: 35.6%
High school or higher
94.1%
+13.3 ptssince 2000
from 80.8% in 2000
US average: 89.6%
Graduate degree
3.0%
+1.1 ptssince 2000
from 1.8% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
19.7 min
+52%since 2000
from 13.0 min in 2000
US average: 26.5
Drive alone to work
86.1%
−6.2 ptssince 2009
from 92.3% in 2009
US average: 68.9%
Carpooled to work
6.2%
+0.1 ptssince 2009
from 6.2% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
1.4%
+1.4 ptssince 2009
from 0.0% in 2009
US average: 15.0%
Walked to work
6.2%
+6.2 ptssince 2009
from 0.0% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
2.6%
+2.6 ptssince 2009
from 0.0% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.7%
+1.4 ptssince 2011
from 3.4% in 2011
US average: 5.2%
Labor force participation
71.5%
+1.3 ptssince 2011
from 70.2% in 2011
US average: 63.5%
Self-employed
10.0%
+1.9 ptssince 2009
from 8.0% in 2009
US average: 13.1%
Management & professional
23.0%
−34.8 ptssince 2009
from 57.8% in 2009
US average: 42.5%
Section 08

People & community

Male
46.7%
+1.3 ptssince 2009
from 45.4% in 2009
Female
53.3%
−1.3 ptssince 2009
from 54.6% in 2009
Foreign born
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 14.1%
Veterans
12.4%
−29.4 ptssince 2009
from 41.8% in 2009
US average: 6.2%
With a disability
18.5%
+3.6 ptssince 2012
from 14.9% in 2012
US average: 13.3%
Uninsured
3.9%
−90.1 ptssince 2013
from 94.0% in 2013
US average: 8.4%
Broadband at home
91.9%
+20.1 ptssince 2017
from 71.8% in 2017
US average: 91.0%
English only at home
100.0%
+0.8 ptssince 2016
from 99.2% in 2016
US average: 77.7%
Spanish at home
0.0%
−0.8 ptssince 2016
from 0.8% in 2016
US average: 13.6%
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Head to head

Compare Mendon to nearby cities

MENDON VS
Quincy
Income$56,480−14%
Home value$153,200+37%
Population38,918+4511%
SEE FULL COMPARISON →
MENDON VS
Keokuk
Income$52,711−20%
Home value$104,300−7%
Population9,510+1027%
SEE FULL COMPARISON →
MENDON VS
Hannibal
Income$53,721−18%
Home value$127,700+14%
Population16,804+1891%
SEE FULL COMPARISON →
MENDON VS
Fort Madison
Income$50,705−23%
Home value$94,200−16%
Population9,935+1077%
SEE FULL COMPARISON →
Frequently asked

How many people live in Mendon, Illinois?

Mendon, Illinois has about 1,167 residents according to the 2024 American Community Survey.

What is the median household income in Mendon, Illinois?

The typical household in Mendon, Illinois earns about $65,781 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 $111,600, and the typical rent is about $667 a month.

How educated are people in Mendon, Illinois?

About 12.9% 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 15.7% 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 349 residents, a change of about 43 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 →

Mendon, Illinois: demographics, income & housing data · CensusEasy