How many people live in Kankakee County, IL?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 106,400 people living in Kankakee County, IL. That makes Kankakee County the 18th-most populous county in Illinois. It is home to 0.84% of people living in the state.
106K
population of Kankakee County, IL (2024)
0.84%
County share of the Illinois population (2024)
About 106,400 people lived in Kankakee County, IL in 2024.
Population estimates, 2000–2024
What are Kankakee County, IL’s age demographics?
About 19,900 Kankakee County, IL residents are aged 65 and older in 2024. That represents 18.7% of its population. For comparison, the age group represents 17.9% of Illinois' population and 18% in the US overall.
Another 23,700 Kankakee County residents, or 22.3% of the population, were children under 18. For comparison, the age group represents 21.2% of Illinois’s population and 21.6% in the US overall.
A lower share of Kankakee County, IL's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Kankakee County, IL’s racial and ethnic demographics?
Non-Hispanic white residents make up 68.2% of the Kankakee County population, higher than the national share of 57.5%. Kankakee County also has a larger share of people identifying as non-Hispanic Black or African American (14.7%) than the US overall (12.6%).
In contrast, Kankakee County’s Hispanic population accounts for 13.8%, below the 20% nationwide, and the non-Hispanic Asian population makes up 1% of the county, compared with 6.5% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Kankakee County, IL has a higher share of a non-Hispanic white population than Illinois as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Kankakee County, IL is Kankakee with about 22,700 residents in 2024.
Cities and towns in Kankakee County, IL ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Kankakee (pt.) | 22,655 |
| 2. | Bourbonnais (pt.) | 17,958 |
| 3. | Bradley (pt.) | 15,298 |
| 4. | Manteno | 9,241 |
| 5. | Momence (pt.) | 1,585 |
| 6. | Momence (pt.) | 1,584 |
| 7. | Limestone (pt.) | 1,524 |
| 8. | Herscher | 1,493 |
| 9. | Grant Park | 1,282 |
| 10. | St. Anne | 1,130 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
