| Community college | City | County | Instructional staff (FTE) | Website |
|---|---|---|---|---|
| College of DuPage | Glen Ellyn | DuPage County | 663 | Official site |
| College of Lake County | Grayslake | Lake County | 411.33 | Official site |
| Joliet Junior College | Joliet | Will County | 385.33 | Official site |
| William Rainey Harper College | Palatine | Cook County | 332.33 | Official site |
| Moraine Valley Community College | Palos Hills | Cook County | 301.33 | Official site |
| Oakton College | Des Plaines | Cook County | 295 | Official site |
| Southwestern Illinois College | Belleville | St. Clair County | 276.67 | Official site |
| Elgin Community College | Elgin | Kane County | 261.33 | Official site |
| Triton College | River Grove | Cook County | 248.67 | Official site |
| Parkland College | Champaign | Champaign County | 244 | Official site |
| Illinois Central College | East Peoria | Tazewell County | 242.67 | Official site |
| Waubonsee Community College | Sugar Grove | Kane County | 216 | Official site |
| City Colleges of Chicago-Malcolm X College | Chicago | Cook County | 196 | Official site |
| Lincoln Land Community College | Springfield | Sangamon County | 179.33 | Official site |
| Rock Valley College | Rockford | Winnebago County | 173 | Official site |
| Lake Land College | Mattoon | Coles County | 170 | Official site |
| City Colleges of Chicago-Harold Washington College | Chicago | Cook County | 168 | Official site |
| Heartland Community College | Normal | McLean County | 158.67 | Official site |
| City Colleges of Chicago-Wilbur Wright College | Chicago | Cook County | 157 | Official site |
| McHenry County College | Crystal Lake | McHenry County | 145 | Official site |
| Lewis and Clark Community College | Godfrey | Madison County | 142.33 | Official site |
| City Colleges of Chicago-Harry S Truman College | Chicago | Cook County | 140.67 | Official site |
| Black Hawk College | Moline | Rock Island County | 126.33 | Official site |
| Prairie State College | Chicago Heights | Cook County | 122.67 | Official site |
| Illinois Eastern Community Colleges | Olney | Richland County | 117.67 | Official site |
| City Colleges of Chicago-Richard J Daley College | Chicago | Cook County | 110 | Official site |
| Morton College | Cicero | Cook County | 108.33 | Official site |
| Illinois Valley Community College | Oglesby | LaSalle County | 103.33 | Official site |
| Kankakee Community College | Kankakee | Kankakee County | 101.33 | Official site |
| John A Logan College | Carterville | Williamson County | 100.67 | Official site |
| South Suburban College | South Holland | Cook County | 94.33 | Official site |
| City Colleges of Chicago-Kennedy-King College | Chicago | Cook County | 94 | Official site |
| Kaskaskia College | Centralia | Clinton County | 91.67 | Official site |
| Kishwaukee College | Malta | DeKalb County | 89.67 | Official site |
| John Wood Community College | Quincy | Adams County | 82.33 | Official site |
| Danville Area Community College | Danville | Vermilion County | 73 | Official site |
| City Colleges of Chicago-Olive-Harvey College | Chicago | Cook County | 72.33 | Official site |
| Richland Community College | Decatur | Macon County | 68.67 | Official site |
| Carl Sandburg College | Galesburg | Knox County | 66.33 | Official site |
| Sauk Valley Community College | Dixon | Lee County | 66.33 | Official site |
| Highland Community College | Freeport | Stephenson County | 65.67 | Official site |
| Rend Lake College | Ina | Jefferson County | 58.33 | Official site |
| Spoon River College | Canton | Fulton County | 48.33 | Official site |
| Shawnee Community College | Ullin | Pulaski County | 44.33 | Official site |
| Southeastern Illinois College | Harrisburg | Saline County | 38.67 | Official site |
Largest first by instructional staff (FTE), as each employer reports it to its federal registry.
Source: National Center for Education Statistics, Integrated Postsecondary Education Data System (IPEDS), 2025–26 institutional characteristics and fall 2024 human resources. Data captured October 2, 2026.
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