Mattoon, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Mattoon, Illinois is 16,334 as of the 2023 American Community Survey, making it the 155th-largest city in Illinois. The median household income is $47,308, the median home value is $96,000, and the median age is 42.6.
The population has declined 10.5% since 2010 (18,551 → 16,602).
16,334
Population
1584
People / sq mi
$47,308
Median Income
$96,000
Median Home Value
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Mattoon covers 10.3 sq mi of land at 1584 people per square mile.
About Mattoon, IL
Housing cost is the defining feature of Mattoon: the median home is valued at $96,000. Mattoon is a city in Illinois with a population of 16,334.
Money is tight relative to the rest of US cities: the median household earns just $47,308, below the US median of $78,538. Roughly 13.9% of residents fall below the poverty line, above the national 12.4%. Real estate is inexpensive, with a typical home worth only $96,000, with typical rent around $764.
College attainment is 19.5%, below the national 35.0%. Home-based work is uncommon, at 3.6%, below the national 14.0%, and the average commute runs about 18 minutes each way.
Mattoon city Population History (2010-2024)
The city of Mattoon city had a population of 18,551 in 2010 and 16,602 in 2024, a -10.5% growth over 14 years. The peak was 18,551 in 2010. Average annual growth rate: -0.78%.
16,602
Population (2024)
18,551
Population (2010)
18,551
Peak (2010)
-0.78%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 18,551 |
| 2011 | 18,412 |
| 2012 | 18,338 |
| 2013 | 18,325 |
| 2014 | 18,192 |
| 2015 | 18,132 |
| 2016 | 18,043 |
| 2017 | 17,885 |
| 2018 | 17,689 |
| 2019 | 17,615 |
| 2020 | 16,853 |
| 2021 | 16,875 |
| 2022 | 16,692 |
| 2023 | 16,622 |
| 2024 | 16,602 |
Race & Ethnicity
| White | 91.0% |
| Black or African American | 2.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.3% |
| Two or More Races | 0.0% |
Economy & Income
$47,308
Median Household Income
$28,209
Per Capita Income
13.9%
Poverty Rate
5.1%
Unemployment Rate
Housing
$96,000
Median Home Value
$764
Median Rent
56.0%
Owner-Occupied
Education
89.6%
High School+
19.5%
Bachelor's+
Commute
0.0%
Drive Alone
79.2%
Public Transit
3.6%
Work From Home
18.2 min
Avg Commute
Community Profile
14.5%
Foreign Born
96.8%
Non-English at Home
7.5%
Veterans
19.8%
With Disability
92.2%
Health Insurance
93.1%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 21.0% |
| Manufacturing | 20.7% |
| Finance, Insurance & Real Estate | 8.4% |
| Arts, Entertainment & Food Services | 8.0% |
| Education, Health Care & Social Services | 7.4% |
| Retail Trade | 6.1% |
| Construction | 6.0% |
| Information | 5.5% |
| Transportation & Warehousing | 2.3% |
| Public Administration | 1.1% |
| Agriculture & Mining | 0.8% |
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City rankings
Frequently Asked Questions
Mattoon, Illinois has a population of 16,334 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 155th-largest city in Illinois.
The median household income in Mattoon, Illinois is $47,308, with 13.9% of residents living below the federal poverty level.
The median home value in Mattoon, Illinois is $96,000, with median monthly rent at $764 and a homeownership rate of 56.0%.
The median age in Mattoon, Illinois is 42.6 years. The population is 49.2% male and 50.8% female.
The population has declined 10.5% since 2010 (18,551 → 16,602).
Where to stay in Mattoon
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.