| Capital: | Watseka |
|---|---|
| Origen y Formación del condado: | Vermilion County |
| Población: | 29,718 habitantes |
| Área: | 1,116 sq mi |
| Localización del condado dentro de Illinois: |
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Localidades en Iroquois, Illinois
- Artesia Township Iroquois County
- Ashkum
- Ashkum Township Iroquois County
- Ash Grove Township Iroquois County
- Beaverville
- Beaverville Township Iroquois County
- Beaver Township Iroquois County
- Belmont Township Iroquois County
- Buckley
- Chebanse
- Chebanse Township Iroquois County
- Cissna Park
- Claytonville
- Clifton
- Concord Township Iroquois County
- Crescent City
- Crescent Township Iroquois County
- Danforth
- Danforth Township Iroquois County
- Donovan
- Douglas Township Iroquois County
- Fountain Creek Township Iroquois County
- Gilman
- Goodwine
- Iroquois
- Iroquois Township Iroquois County
- Loda
- Loda Township Iroquois County
- Lovejoy Township Iroquois County
- Martinton
- Martinton Township Iroquois County
- Middleport Township Iroquois County
- Milford
- Milford Township Iroquois County
- Milks Grove Township Iroquois County
- Onarga
- Onarga Township Iroquois County
- Papineau
- Papineau Township Iroquois County
- Pigeon Grove Township Iroquois County
- Prairie Green Township Iroquois County
- Ridgeland Township Iroquois County
- Sheldon
- Sheldon Township Iroquois County
- Stockland Township Iroquois County
- Thawville
- Watseka
- Wellington
- Woodland