106,410 people (2024 Census estimate, −0.9% since 2020)
676 square miles of land · 157 people per square mile
“Highest” and “lowest” are just order, not grades: a high rank for poverty or hazard losses means more of it. Each figure's source is in its section below.
21 active community water systems list Kankakee County in the area they serve, reporting 91,529 people served in all (a system that crosses county lines counts its whole population).
| AQUA ILLINOIS-KANKAKEE surface water · private · IL0915030 | 80,000 served |
| MOMENCE groundwater · local government · IL0910650 | 3,075 served |
| HERSCHER groundwater · local government · IL0910450 | 1,600 served |
| PEMBROKE TOWNSHIP buys groundwater · local government · IL0910010 | 1,410 served |
| ST ANNE groundwater · local government · IL0910700 | 1,200 served |
| SUNNY ACRES MHP groundwater · private · IL0915545 | 750 served |
| HOPKINS PARK groundwater · local government · IL0910040 | 579 served |
| LAKE SHANNON surface water · private · IL0910020 | 500 served |
Source: U.S. EPA Safe Drinking Water Information System (SDWIS), active community systems, . Look up any system's violations and test results with EPA's search using its ID.
About 617 people were held in Kankakee County's jail, in Vera's latest figure (2023), or 915 per 100,000 residents ages 15–64. In 2018 it was about 631.
Source: Vera Institute of Justice, Incarceration Trends (built from federal Bureau of Justice Statistics jail surveys). Counties without their own jail, or that share one, may show no figure.
12 school districts have their office in Kankakee County. School taxes are usually the largest part of a property tax bill.
Spent $120.9 million — $89.7 million to run schools, about $18,743 per student, plus $25.3 million on buildings and equipment. Money in: $21.6 million local (mostly property tax), $65.5 million state, $32.5 million federal. Long-term debt: $32.9 million.
Spent $38.2 million — $36.9 million to run schools, about $16,078 per student, plus $942,000 on buildings and equipment. Money in: $17.7 million local (mostly property tax), $18.5 million state, $6.8 million federal. Long-term debt: $8.1 million.
Spent $39.7 million — $32.5 million to run schools, about $16,938 per student, plus $5.9 million on buildings and equipment. Money in: $19 million local (mostly property tax), $18.8 million state, $5.5 million federal. Long-term debt: $14.1 million.
Spent $34.7 million — $29.3 million to run schools, about $15,552 per student, plus $1.5 million on buildings and equipment. Money in: $22.9 million local (mostly property tax), $13.5 million state, $3.5 million federal. Long-term debt: $21.5 million.
Spent $31.1 million — $28.4 million to run schools, about $16,729 per student, plus $1.2 million on buildings and equipment. Money in: $18.3 million local (mostly property tax), $20.3 million state, $2 million federal. Long-term debt: $14.9 million.
Spent $27.4 million — $25.5 million to run schools, about $19,661 per student, plus $1.4 million on buildings and equipment. Money in: $11.3 million local (mostly property tax), $13.7 million state, $2.9 million federal. Long-term debt: $2 million.
Spent $18.4 million — $17.3 million to run schools, about $17,056 per student, plus $672,000 on buildings and equipment. Money in: $7.3 million local (mostly property tax), $10.9 million state, $2 million federal. Long-term debt: $9.4 million.
Spent $7.8 million — $7.5 million to run schools, about $16,425 per student, plus $269,000 on buildings and equipment. Money in: $4.5 million local (mostly property tax), $3.8 million state, $810,000 federal.
And 4 more.
Source: U.S. Census Bureau, 2023 Annual Survey of School System Finances. Districts are listed by the county of their main office; some serve neighboring counties too.
Source: County Health Rankings & Roadmaps 2025 (University of Wisconsin Population Health Institute), which gathers federal data (CDC, Census, and others); measures cover different recent years. Blank lines aren't reported for small counties.
Overall risk: Relatively Moderate compared with other U.S. counties. FEMA estimates natural hazards cost Kankakee County about $68.2 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
344 bridges in Kankakee County: 125 in good condition, 185 fair, and 34 poor (9.9%). “Poor” means a main part — the deck, the beams, or the supports — is rated 4 or lower on the federal 0–9 scale. It doesn't mean unsafe to drive; unsafe bridges are closed.
| FAI-57 SB over ILL 17 · built 1955 | 14,450 vehicles a day |
| FAI-57 NB over ILL RTE 17 · built 1955 | 11,650 vehicles a day |
| MANTENO RD over I-57 · built 1964 | 9,550 vehicles a day |
| US 45 & 52 over I-57 · built 1962 | 9,100 vehicles a day |
| CH 44 over SOLDIER CR · built 1961 | 4,650 vehicles a day |
| CH 54 over TOWER CR · built 1975 | 3,050 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $46.4 million of work in Kankakee County in fiscal 2025, about $432 per resident — to the county, cities, schools, hospitals, nonprofits and others.
Source: USAspending.gov, grants by place of performance, fiscal 2025 (Oct. 2024 to Sept. 2025). Search it by county to see each award.
From Grants.gov: posted grants listing county governments as eligible, soonest deadline first; research-only and overseas programs left out; list updated 2026-10-13, refreshed weekly. 62 are open in all. Cities, towns, school districts and nonprofits have their own lists there.
Registration deadlines, early voting and polling places for Illinois are on the federal site vote.gov, which links to the state's official election office.
The budget, property tax rates, audits, local officials and offices for Kankakee County come from the county's own records, which we haven't gathered — not gathered, never hidden. See what a full county site looks like, or ask to have Kankakee County built: brayden.ozark@gmail.com.
More of Illinois: the state government and every county in Illinois.
Nearby counties: Will County (22 mi) · Newton County, IN (27 mi) · Iroquois County (27 mi) · Grundy County (30 mi) · Lake County, IN (34 mi) · Jasper County, IN (39 mi).