Mattoon Population 2026
Mattoon has a population of 18,113, making it the #2635 biggest city in 🇺🇸 United States, located in Illinois. It is about 486× smaller than New York City, the country's biggest city.
Population (city proper)
18,113
Rank in United States
#2635
Coordinates
39.48°N, 88.37°W
~224 m elevation · America/Chicago
Distance to capital (Washington)
979 km
608 miles, straight line
Other big cities in Illinois
| City | Population | Rank in United States |
|---|---|---|
| Chicago | 2,664,452 | #3 |
| Aurora | 200,661 | #125 |
| Rockford | 148,278 | #184 |
| Joliet | 147,861 | #186 |
| Naperville | 147,100 | #190 |
| Peoria | 115,070 | #259 |
| Springfield | 114,394 | #262 |
| North Peoria | 113,004 | #266 |
Cities near Mattoon
- Charleston21,196 people · ~17 km away
- Decatur73,254 people · ~64 km away
- Urbana42,311 people · ~71 km away
- Champaign86,096 people · ~71 km away
- Terre Haute60,825 people · ~82 km away
- Danville32,108 people · ~95 km away
FAQ
What is the population of Mattoon?
Mattoon has a population of 18,113 (city proper, latest official figure via GeoNames), making it the #2635 biggest city in United States.
What state is Mattoon in?
Mattoon is located in Illinois, United States.
Is Mattoon the capital of United States?
No, the capital of United States is Washington D.C., about 979 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
← All biggest cities in United States · United States population by year