Local IntelligenceYour community understood
Discover IllinoisUnited States
Schools
5,579
about 2,048,131 pupils - 4% of the United States
Nonprofits
75,065
$304.8bn combined reported income - 4% of the United States
By registered addressCounts organisations by registered address, not where they work. Head offices and trustees inflate some areas.
Hospitals and health bodies
214
with boards on file
What stands out about this place?
Findings where this place differs most from the United States, with the evidence behind each one. A difference is not a verdict: it is a prompt to look closer.
Nothing clearly stands out. This area's mix of nonprofits and schools is close to the national picture.
Education
5,579 schools with about 2,048,131 pupils. NCES Common Core of Data (public schools). Pupil numbers and school types, never league tables.
Largest schools by pupil numbers
| American SchoolLansing | 5,049 pupils |
| Adlai E Stevenson High SchoolHigh - Lincolnshire | 4,758 pupils |
| Lane Technical High SchoolHigh - Chicago | 4,604 pupils |
| Taft High SchoolHigh - Chicago | 4,487 pupils |
| Waukegan High SchoolHigh - Waukegan | 4,186 pupils |
| East High SchoolHigh - Aurora | 4,020 pupils |
| Lyons Twp High SchHigh - La Grange | 3,706 pupils |
| Lockport Township High Sch EastHigh - Lockport | 3,678 pupils |
| West Aurora High SchoolHigh - Aurora | 3,641 pupils |
| Evanston Twp High SchoolHigh - Evanston | 3,560 pupils |
People and organisations
iShare of nonprofits here, with the share across the United States after "vs". Only organisations with a recorded purpose are counted (49,166 of 75,065).Largest here (largest first by latest reported income)75,065 nonprofits are registered here. Source: IRS Exempt Organizations Business Master File and the Form 990 data already on this site.
By size
| Central States Southeast & Southwest Areas Health & Welfare F501(c)09 - Chicago | $56.5bn |
| Advocate Health and Hospitals CorporationHealth Care - Oak Brook | $12.9bn |
| Northwestern Memorial HealthcareHealth Care - Chicago | $11.2bn |
| University of ChicagoEducation - Chicago | $10bn |
| Northwestern UniversityRecreation & Sports - Evanston | $6.6bn |
| Feeding AmericaFood, Agriculture & Nutrition - Chicago | $5.1bn |
| Osf Healthcare SystemHealth Care - Peoria | $4.4bn |
| University of Chicago Medical CenterHealth Care - Chicago | $4.1bn |
| John D & Catherine T Macarthur FoundationPhilanthropy, Voluntarism & Grantmaking Foundations - Chicago | $3.9bn |
| Northshore University HealthsystemHealth Care - Arlington Hts | $3.8bn |
| The Chicago Community TrustPhilanthropy, Voluntarism & Grantmaking Foundations - Chicago | $3.4bn |
| Rush University Medical CenterHealth Care - Chicago | $3.4bn |
County or equivalent areas in Illinois
The 60 biggest by number of nonprofits.
Cook31,983 nonprofitsDuPage5,385 nonprofitsLake3,538 nonprofitsWill2,937 nonprofitsKane2,240 nonprofitsSangamon2,071 nonprofitsRock Island1,695 nonprofitsMadison1,466 nonprofitsSt. Clair1,432 nonprofitsWinnebago1,373 nonprofitsChampaign1,292 nonprofitsPeoria1,231 nonprofitsMcHenry1,198 nonprofitsMcLean1,054 nonprofitsTazewell652 nonprofitsLaSalle625 nonprofitsMacon594 nonprofitsDeKalb556 nonprofitsKankakee532 nonprofitsAdams473 nonprofitsWilliamson434 nonprofitsJackson403 nonprofitsKendall387 nonprofitsVermilion368 nonprofitsWhiteside325 nonprofitsKnox324 nonprofitsColes314 nonprofitsHenry313 nonprofitsGrundy312 nonprofitsMarion281 nonprofitsOgle276 nonprofitsMacoupin275 nonprofitsStephenson262 nonprofitsEffingham260 nonprofitsLee242 nonprofitsJefferson235 nonprofitsMorgan234 nonprofitsBureau231 nonprofitsMonroe230 nonprofitsFulton227 nonprofitsLivingston216 nonprofitsIroquois215 nonprofitsFranklin208 nonprofitsRandolph206 nonprofitsChristian200 nonprofitsJo Daviess197 nonprofitsMontgomery194 nonprofitsWoodford183 nonprofitsLogan182 nonprofitsMcDonough181 nonprofitsClinton174 nonprofitsCrawford164 nonprofitsBoone163 nonprofitsEdgar156 nonprofitsHancock140 nonprofitsRichland132 nonprofitsSaline132 nonprofitsDouglas129 nonprofitsJersey126 nonprofitsWayne126 nonprofits
Who runs things here
Councils, elected members and health bodies we hold for this area. For the people matched to a specific ZIP code, use Who runs things.
Illinois - governor and statewide officials
US Senate - Illinois
- Richard J. Durbin
- Tammy Duckworth
Two senators for the whole state.
State health bodiesiNonprofit hospitals and health systems in Illinois, with boards filed on Form 990.
Where is it?
Largest schoolsLargest nonprofits
What we do not hold here
- Population, housing, crime, income and other census-style figures: we hold none for the United States here, so nothing above is a rate per person.
- Nonprofits are placed at the centre of their ZIP code, so distances are to the ZIP centre, not a street address.
- Congressional districts come from the Census ZIP-to-district file for the 118th Congress; districts redrawn since may differ.
- State legislators, county and most city councils are not held yet, only governors and statewide officials, two city councils and the US Congress.
- Private and charter schools beyond the public-school list are not held.
Sources used on this pageiBuilt 2026-10-18 06:19:19 UTC. Registered addresses are not operating locations. An independent register, not affiliated with any government.
- IRS Exempt Organizations Business Master File and the Form 990 data already on this site.
- NCES Common Core of Data (public schools) (school profiles already on this site).
- GeoNames postal codes (ZIP centres), CC BY 4.0.
- Representatives and councils from the public bodies already held on this site.