Illinois
Illinois Congressional Delegation
Explore Illinois’s representation in the U.S. Congress.
Democrat
Republican
Senators
D Democrat
· Senior Senator
D Democrat
· Junior Senator
Representatives
| District | Representative | Party | |
|---|---|---|---|
|
IL-01 | Jonathan L. Jackson | D Democrat |
|
IL-02 | Robin L. Kelly | D Democrat |
|
IL-03 | Delia C. Ramirez | D Democrat |
|
IL-04 | Jesús G. "Chuy" García | D Democrat |
|
IL-05 | Mike Quigley | D Democrat |
|
IL-06 | Sean Casten | D Democrat |
|
IL-07 | Danny K. Davis | D Democrat |
|
IL-08 | Raja Krishnamoorthi | D Democrat |
|
IL-09 | Janice D. Schakowsky | D Democrat |
|
IL-10 | Bradley Scott Schneider | D Democrat |
|
IL-11 | Bill Foster | D Democrat |
|
IL-12 | Mike Bost | R Republican |
|
IL-13 | Nikki Budzinski | D Democrat |
|
IL-14 | Lauren Underwood | D Democrat |
|
IL-15 | Mary E. Miller | R Republican |
|
IL-16 | Darin LaHood | R Republican |
|
IL-17 | Eric Sorensen | D Democrat |
Counties
| County | Population | Congressional Districts |
|---|---|---|
| Adams County | 64,441 | IL-15 |
| Alexander County | 4,695 | IL-12 |
| Bond County | 16,450 | IL-15 |
| Boone County | 53,202 | IL-11, IL-16 |
| Brown County | 6,294 | IL-15 |
| Bureau County | 32,729 | IL-14, IL-16 |
| Calhoun County | 4,317 | IL-15 |
| Carroll County | 15,526 | IL-17 |
| Cass County | 12,596 | IL-15 |
| Champaign County | 205,644 | IL-02, IL-13, IL-15 |
| Christian County | 33,228 | IL-15 |
| Clark County | 15,088 | IL-12 |
| Clay County | 12,999 | IL-12 |
| Clinton County | 36,785 | IL-12, IL-15 |
| Coles County | 46,060 | IL-12, IL-15 |
| Cook County | 5,087,072 | IL-01, IL-02, IL-03, IL-04, IL-05, IL-06, IL-07, IL-08, IL-09, IL-10, IL-11 |
| Crawford County | 18,300 | IL-12 |
| Cumberland County | 10,261 | IL-12, IL-15 |
| De Witt County | 15,365 | IL-15 |
| Dekalb County | 100,288 | IL-11, IL-14, IL-16 |
| Douglas County | 19,629 | IL-12, IL-15 |
| Dupage County | 921,213 | IL-03, IL-04, IL-05, IL-06, IL-07, IL-08, IL-11 |
| Edgar County | 16,334 | IL-12, IL-15 |
| Edwards County | 5,968 | IL-12 |
| Effingham County | 34,331 | IL-12, IL-15 |
| Fayette County | 21,164 | IL-12, IL-15 |
| Ford County | 13,250 | IL-02, IL-15, IL-16 |
| Franklin County | 37,138 | IL-12 |
| Fulton County | 32,541 | IL-15, IL-17 |
| Gallatin County | 4,670 | IL-12 |
| Greene County | 11,543 | IL-15 |
| Grundy County | 53,578 | IL-16 |
| Hamilton County | 7,911 | IL-12 |
| Hancock County | 17,186 | IL-15 |
| Hardin County | 3,569 | IL-12 |
| Henderson County | 6,088 | IL-15 |
| Henry County | 48,448 | IL-16, IL-17 |
| Iroquois County | 26,136 | IL-02, IL-15 |
| Jackson County | 52,141 | IL-12 |
| Jasper County | 9,144 | IL-12, IL-15 |
| Jefferson County | 36,320 | IL-12 |
| Jersey County | 21,091 | IL-15 |
| Jo Daviess County | 21,756 | IL-16, IL-17 |
| Johnson County | 13,326 | IL-12 |
| Kane County | 514,982 | IL-03, IL-05, IL-08, IL-11, IL-14, IL-16 |
| Kankakee County | 105,940 | IL-01, IL-02, IL-16 |
| Kendall County | 139,976 | IL-11, IL-14, IL-16 |
| Knox County | 48,411 | IL-16, IL-17 |
| Lake County | 708,760 | IL-05, IL-08, IL-09, IL-10, IL-11 |
| Lasalle County | 108,309 | IL-14, IL-16 |
| Lawrence County | 14,813 | IL-12 |
| Lee County | 33,654 | IL-14, IL-16 |
| Livingston County | 35,320 | IL-02, IL-14, IL-16 |
| Logan County | 27,590 | IL-15 |
| Macon County | 100,591 | IL-13, IL-15 |
| Macoupin County | 44,018 | IL-13, IL-15 |
| Madison County | 262,752 | IL-12, IL-13, IL-15 |
| Marion County | 36,673 | IL-12, IL-15 |
| Marshall County | 11,683 | IL-14, IL-16 |
| Mason County | 12,523 | IL-15 |
| Massac County | 13,661 | IL-12 |
| Mcdonough County | 26,839 | IL-15, IL-17 |
| Mchenry County | 312,800 | IL-05, IL-08, IL-09, IL-10, IL-11, IL-14, IL-16 |
| Mclean County | 170,441 | IL-02, IL-15, IL-16, IL-17 |
| Menard County | 11,954 | IL-15 |
| Mercer County | 15,487 | IL-15, IL-16, IL-17 |
| Monroe County | 34,957 | IL-12 |
| Montgomery County | 27,663 | IL-13, IL-15 |
| Morgan County | 32,140 | IL-13, IL-15 |
| Moultrie County | 14,342 | IL-12, IL-15 |
| Ogle County | 51,265 | IL-14, IL-16 |
| Peoria County | 177,513 | IL-15, IL-16, IL-17 |
| Perry County | 20,503 | IL-12 |
| Piatt County | 16,714 | IL-02, IL-13, IL-15, IL-16 |
| Pike County | 14,342 | IL-15 |
| Pope County | 3,707 | IL-12 |
| Pulaski County | 4,911 | IL-12 |
| Putnam County | 5,561 | IL-14, IL-16 |
| Randolph County | 29,815 | IL-12 |
| Richland County | 15,488 | IL-12 |
| Rock Island County | 141,236 | IL-15, IL-16, IL-17 |
| Saline County | 22,873 | IL-12 |
| Sangamon County | 193,491 | IL-13, IL-15 |
| Schuyler County | 6,733 | IL-15, IL-17 |
| Scott County | 4,710 | IL-15 |
| Shelby County | 20,568 | IL-12, IL-15 |
| St. Clair County | 251,018 | IL-12, IL-13, IL-15 |
| Stark County | 5,218 | IL-16, IL-17 |
| Stephenson County | 43,105 | IL-16, IL-17 |
| Tazewell County | 129,541 | IL-15, IL-16, IL-17 |
| Union County | 16,667 | IL-12 |
| Vermilion County | 71,652 | IL-02, IL-15 |
| Wabash County | 10,942 | IL-12 |
| Warren County | 16,185 | IL-15, IL-17 |
| Washington County | 13,536 | IL-12 |
| Wayne County | 15,761 | IL-12 |
| White County | 13,401 | IL-12 |
| Whiteside County | 54,498 | IL-16, IL-17 |
| Will County | 700,728 | IL-01, IL-02, IL-06, IL-11, IL-14, IL-16 |
| Williamson County | 66,706 | IL-12 |
| Winnebago County | 280,922 | IL-11, IL-14, IL-16, IL-17 |
| Woodford County | 38,285 | IL-14, IL-16, IL-17 |