United States Senate – DEM Hold
Adlai Stevenson III (D-inc) – 1,811,496 – 62.15%
George M. Burditt (R) – 1,084,884 – 37.22%
Edward Thomas Heisler (SW) – 12,413 – 0.43%
Ishmael Flory (Comm.) – 5,873 – 0.20%
Total Votes – 2,914,666 – 100.00%
United States House of Representatives – District 1 – DEM Hold
Ralph H. Metcalfe (D-inc) – 75,206 – 93.74%
Oscar H. Haynes (R) – 4,399 – 5.48%
Willie Mae Reid (SW) – 620 – 0.77%
Total Votes – 80,225 – 100.00%
United States House of Representatives – District 2 – DEM Hold
Morgan F. Murphy (D-inc) – 65,812 – 87.52%
James J. Ginderske (R) – 9,386 – 12.48%
Total Votes – 75,198 – 100.00%
United States House of Representatives – District 3 – DEM Gain
Marty Russo (D) – 65,336 – 52.59%
Robert P. Hanrahan (R-inc) – 58,891 – 47.41%
Total Votes – 124,227 – 100.00%
United States House of Representatives – District 4 – GOP Hold
Edward J. Derwinski (R-inc) – 68,428 – 59.23%
Ronald A. Rodger (D) – 47,096 – 40.77%
Total Votes – 115,524 – 100.00%
United States House of Representatives – District 5 – DEM Hold
John C. Kluczynski (D-inc) – 93,069 – 86.03%
William H. G. Toms (R) – 15,108 – 13.97%
Total Votes – 108,177 – 100.00%
United States House of Representatives – District 6 – GOP Hold
Henry Hyde (R) – 66,027 – 53.38%
Edward V. Hanrahan (D) – 57,654 – 46.62%
Total Votes – 123,681 – 100.00%
United States House of Representatives – District 7 – DEM Hold
Cardiss Collins (D-inc) – 63,962 – 87.91%
Donald L. Metzger (R) – 8,800 – 12.09%
Total Votes – 72,762 – 100.00%
United States House of Representatives – District 8 – DEM Hold
Dan Rostenkowski (D-inc) – 75,011 – 86.54%
Salvatore E. Oddo (R) – 11,664 – 13.46%
Total Votes – 86,675 – 100.00%
United States House of Representatives – District 9 – DEM Hold
Sidney R. Yates (D-inc) – 93,864 – 100.00%
United States House of Representatives – District 10 – DEM Gain
Abner J. Mikva (D) – 83,457 – 50.87%
Samuel H. Young (R-inc) – 80,597 – 49.13%
Total Votes – 164,054 – 100.00%
United States House of Representatives – District 11 – DEM Hold
Frank Annunzio (D-inc) – 102,541 – 72.35%
Mtchell G. Zadrozny (R) – 39,182 – 27.65%
Total Votes – 141,723 – 100.00%
United States House of Representatives – District 12 – GOP Hold
Phil Crane (R-inc) – 70,731 – 61.09%
Betty C. Spence (D) – 45,049 – 38.91%
Total Votes – 115,780 – 100.00%
United States House of Representatives – District 13 – GOP Hold
Robert McClory (R-inc) – 51,405 – 54.50%
Stanley W. Beetham (D) – 42,903 – 45.49%
Write-Ins – 5 – 0.01%
Total Votes – 94,313 – 100.00%
United States House of Representatives – District 14 – GOP Hold
John N. Erlenborn (R-inc) – 77,718 – 66.60%
Robert H. Renshaw (D) – 38,981 – 33.40%
Total Votes – 116,699 – 100.00%
United States House of Representatives – District 15 – DEM Gain
Tim Lee Hall (D) – 61,912 – 52.02%
Cliffard D. Carlson (R) – 54,278 – 45.61%
K. Douglas Lassiter (I) – 2,817 – 2.37%
Total Votes – 119,007 – 100.00%
United States House of Representatives – District 16 – GOP Hold
John B. Anderson (R-inc) – 65,175 – 55.48%
Marshall Hungness (D) – 33,724 – 28.71%
W. John Schade, Jr. (I) – 18,580 – 15.82%
Write-Ins – 2 – 0.00%
Total Votes – 117,481 – 100.00%
United States House of Representatives – District 17 – GOP Hold
George M. O’Brien (R-inc) – 59,984 – 51.48%
John J. Houlihan (D) – 56,541 – 48.52%
Total Votes – 116,525 – 100.00%
United States House of Representatives – District 18 – GOP Hold
Robert H. Michel (R-inc) – 71,681 – 54.76%
Steven L. Nordvall (D) – 59,225 – 45.24%
Total Votes – 130,906 – 100.00%
United States House of Representatives – District 19 – GOP Hold
Tom Railsback (R-inc) – 84,049 – 65.29%
Jim Gende (D) – 44,677 – 34.71%
Write-Ins – 2 – 0.00%
Total Votes – 128,728 – 100.00%
United States House of Representatives – District 20 – GOP Hold
Paul Findley (R-inc) – 84,426 – 54.83%
Peter F. Mack (D) – 69,551 – 45.17%
Write-Ins – 10 – 0.01%
Total Votes – 153,987 – 100.00%
United States House of Representatives – District 21 – GOP Hold
Edward Rell Madigan (R-inc) – 78,640 – 65.79%
Richard N. Small (D) – 40,896 – 34.21%
Total Votes – 119,536 – 100.00%
United States House of Representatives – District 22 – DEM Hold
George E. Shipley (D-inc) – 97,921 – 59.83%
William A. Young (R) – 65,731 – 40.17%
Total Votes – 163,652 – 100.00%
United States House of Representatives – District 23 – DEM Hold
Melvin Price (D-inc) – 78,347 – 80.49%
Scott Randolph (R) – 18,987 – 19.51%
Total Votes – 97,334 – 100.00%
United States House of Representatives – District 24 – DEM Hold
Paul Simon (D) – 108,417 – 59.55%
Val Oshel (I) – 73,634 – 40.45%
Total Votes – 182,051 – 100.00%