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Kankakee County, IL: population growth, jobs and income

Kankakee County lost 289 residents between 2024 and 2025 (−0.3%).

Kankakee County had an estimated 105,525 residents in 2025, down 1.7% (1,877 fewer people) since 2020. That is slower than Illinois as a whole (−0.6%), and the 46th fastest growth of 102 counties in Illinois.

Data as of 2025 · updated

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In the Kankakee County report

One-time $99 PDF: everything on this page for Kankakee County, ranked against Illinois and the U.S., plus these figures that are not on the free page:

  • Median gross rent$1,097/mo2020–24
  • Vacant homes, incl. seasonal and second homes9.7%2020–24
  • New homes permitted, last 12 months1282025-10/2026-09
  • Rent growth, 5 yearsIn the report
  • Permits in 5+ unit buildingsIn the report
  • IRS income moving in (net AGI)In the report
  • Neighbouring-county comparison tableIn the report

What's inside: 5 pages

  1. 1 Summary, headline numbers and ranks (free preview)
  2. 2 Ranks and the neighbouring-county table
  3. 3 Migration, with IRS mover and income flows
  4. 4 Rent, vacant homes, permits and employers
  5. 5 Every source and the methods
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Headline numbers

What the numbers say

Net domestic migration was negative in 2025: 234 more people moved out to other U.S. counties than moved in.

Private employers had 35,392 paid employees in mid-March 2023, −2.4% since 2018 (County Business Patterns).

Unemployment averaged 5.5% in 2025, 0.5 points higher than in 2019 (before the pandemic).

Builders were authorized to start 113 new homes in 2025, or 1.1 per 1,000 residents.

Median household income was $71,281 in the 2020–24 American Community Survey, +20.1% since 2016–20.

Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,404th.

Part of the Kankakee, IL metro area.

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Kankakee County population by year

Resident population, July 1 estimate (Census Bureau)
YearPopulationChange
2025105,525−289
2024105,814−29
2023105,843−31
2022105,874−1,086
2021106,960−442
2020107,402–

Census Bureau population estimates, July 1 of each year.

What drove the change in Kankakee County

Kankakee County lost 1,877 people since 2020; the biggest drag was domestic migration (−2,099).

Components of population change, people (Census Bureau)
Component20252020–25Share
Natural changebirths minus deaths−153−863
International migrationfrom and to other countries+92+1,006
Domestic migrationfrom and to other U.S. counties−234−2,099
Census adjustmentbalancing residual+6+79
Total change−289−1,877

Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.

How it ranks

MeasureIn IllinoisAmong U.S. counties
Population growth46th of 1022,404th of 3,107
Net domestic migration per 1,000 residents69th of 1022,256th of 3,108
Private-sector job growth61st of 1022,195th of 3,092
Median household income40th of 1021,098th of 3,107
Lowest unemployment rate98th of 1022,739th of 3,108
New homes permitted per 1,000 residents40th of 982,054th of 3,005

1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.

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The County Growth and Demographics Report for Kankakee County, IL as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.

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Neighbouring counties

Over 2020–25, Kankakee County's population change (−1.7%) was ahead of 3 of its 7 neighbouring counties and behind 4.

5 of its 7 neighbouring counties had a higher median household income than Kankakee County's $71,281 (2020–24).

Kankakee County, IL and its 7 neighbouring counties: public federal figures
CountyPopulation2025Population change2020–25Net domestic migration per 1,000 residents2025Homes permitted per 1,000 residents2025Median household income2020–24
Kankakee County, IL This county105,525−1.7%−2.21.1$71,281
Will County, IL712,253+2.2%0.32.8$109,984
Iroquois County, IL26,150−3.0%1.70.5$66,255
Newton County, IN14,188+2.9%7.72.4$75,481
Ford County, IL13,216−2.2%−4.01.1$62,439
Grundy County, IL54,052+2.9%5.22.1$92,235
Lake County, IN504,612+1.1%3.52.5$71,493
Livingston County, IL35,057−2.1%−0.51.4$73,790

Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.

All 102 Illinois counties · Every state

Questions

Is Kankakee County growing?

No. Its population fell 1.7% between 2020 and 2025, about 1,877 fewer people (Census Bureau population estimates). Illinois as a whole changed −0.6% over the same years. That ranks 46th of 102 counties in Illinois for population growth.

How many people moved to Kankakee County?

On net, none in 2025: about 234 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).

What is the unemployment rate in Kankakee County?

It averaged 5.5% in 2025 (BLS Local Area Unemployment Statistics, annual average).

What is the population of Kankakee County?

About 105,525 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.

How many jobs are in Kankakee County?

Private employers there had 35,392 paid employees in mid-March 2023, −2.4% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).

What Beacon CRE covers in Illinois

Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Illinois county pages carry the public federal growth figures.

Kankakee County data alerts

Email me when Kankakee County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.

We use your address only to email you when new data for Kankakee County is out: what changed, with a link to that county's report. No newsletter, no other sales emails. Delete it any time with the link in every email. We'll email you a link to confirm first; nothing starts until you click it. Privacy notice.

Sources and method

Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.

Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.