Founded in 1853, Kankakee County is one of 102 counties in the state of Illinois. Historically, Kankakee County was formed from Iroquois and Will County. The city of Kankakee is the county seat. With FIPS code of 91, Kankakee County has a population of 106,601 and area of 676 square miles (1,751 km2).
List of all cities in Kankakee County, IL alphabetically
| City/Town | Postal Code | Area Code |
| Aroma Park, IL | 60910 | 815/779 |
| Bonfield, IL | 60913 | 815/779 |
| Bourbonnais, IL | 60914 | 815/779 |
| Bradley, IL | 60915 | 815/779 |
| Buckingham, IL | 60917 | 815/779 |
| Essex, IL | 60935 | 815/779 |
| Grant Park, IL | 60940 | 815/779 |
| Herscher, IL | 60941 | 815/779 |
| Hopkins Park, IL | 60944 | 815/779 |
| Kankakee, IL | 60901 | 815/779 |
| Manteno, IL | 60950 | 815/779 |
| Momence, IL | 60954 | 815/779 |
| Pembroke Township, IL | 60958 | 815/779 |
| Reddick, IL | 60961 | 815/779 |
| Saint Anne, IL | 60958 | 815/779 |
| 60964 | 815/779 | |
| Union Hill, IL | 60969 | 815/779 |