United States Senate – GOP Hold
Everett M. Dirksen (R-inc) – 1,961,202 – 52.87%
Sidney R. Yates (D) – 1,748,007 – 47.13%
Total Votes – 3,709,209 – 100.00%
United States House of Representatives – District 1 – DEM Hold
William L. Dawson (D-inc) – 98,305 – 74.09%
Benjamin C. Duster (R) – 34,379 – 25.91%
Total Votes – 132,684 – 100.00%
United States House of Representatives – District 2 – DEM Hold
Barratt O’Hara (D-inc) – 78,119 – 62.26%
Philip G. Bixler (R) – 47,336 – 37.73%
Scattering – 16 – 0.01%
Total Votes – 125,471 – 100.00%
United States House of Representatives – District 3 – DEM Hold
William T. Murphy (D-inc) – 82,866 – 51.57%
Ernest E. Michaels (R) – 77,814 – 48.43%
Total Votes – 160,680 – 100.00%
United States House of Representatives – District 4 – GOP Hold
Edward J. Derwinski (R-inc) – 114,954 – 64.89%
Richard E. Friedman (D) – 62,189 – 35.11%
Total Votes – 177,143 – 100.00%
United States House of Representatives – District 5 – DEM Hold
John C. Kluczynski (D-inc) – 84,455 – 63.37%
Joseph Potempa (R) – 48,825 – 36.63%
Total Votes – 133,280 – 100.00%
United States House of Representatives – District 6 – DEM Hold
Thomas J. O’Brien (D-inc) – 72,183 – 77.72%
Adolph Herda (R) – 20,690 – 22.28%
Total Votes – 92,873 – 100.00%
United States House of Representatives – District 7 – DEM Hold
Roland V. Libonati (D-inc) – 86,677 – 78.82%
Joseph D. Day (R) – 23,285 – 21.18%
Total Votes – 109,962 – 100.00%
United States House of Representatives – District 8 – DEM Hold
Dan Rostenkowski (D-inc) – 112,778 – 60.80%
Irvin R. Techon (R) – 72,726 – 39.20%
Total Votes – 185,504 – 100.00%
United States House of Representatives – District 9 – DEM Hold/DEM Loss
Edward Rowan Finnegan (D-inc) – 80,378 – 54.82%
Thomas E. Ward (R) – 66,196 – 45.15%
Scattering – 35 – 0.02%
Total Votes – 146,609 – 100.00%
United States House of Representatives – District 10 – GOP Hold
Harold R. Collier (R-inc) – 149,761 – 66.64%
Joseph A. Salerno (D) – 74,986 – 33.36%
Total Votes – 224,747 – 100.00%
United States House of Representatives – District 11 – DEM Hold
Roman C. Pucinski (D-inc) – 103,677 – 52.74%
Henry J. Hyde (R) – 92,910 – 47.26%
Total Votes – 196,587 – 100.00%
United States House of Representatives – District 12 – GOP Win (new district)
Robert McClory (R) – 76,335 – 63.85%
John C. Kimball (D) – 43,200 – 36.14%
Scattering – 12 – 0.01%
Total Votes – 119,547 – 100.00%
United States House of Representatives – District 13 – GOP Hold
Donald Rumsfeld (R) – 139,230 – 63.52%
John A. Kennedy (D) – 79,419 – 36.23%
Scattering – 542 – 0.25%
Total Votes – 219,191 – 100.00%
United States House of Representatives – District 14 – GOP Hold
Elmer J. Hoffman (R-inc) – 107,285 – 59.71%
Jerome M. Ziegler (D) – 72,390 – 40.29%
Total Votes – 179,675 – 100.00%
United States House of Representatives – District 15 – GOP Hold
Mrs. Frank R. Reid, Jr. (R) – 77,718 – 60.26%
Stanley H. Cowan (D) – 49,444 – 38.34%
Scattering – 1,811 – 1.40%
Total Votes – 128,973 – 100.00%
United States House of Representatives – District 16 – GOP Hold
John B. Anderson (R-inc) – 78,594 – 66.92%
Walter S. Busky (D) – 38,853 – 33.08%
Total Votes – 117,447 – 100.00%
United States House of Representatives – District 17 – GOP Hold
Leslie C. Arends (R-inc) – 87,612 – 62.49%
Donald M. Laughlin (D) – 52,592 – 37.51%
Total Votes – 140,204 – 100.00%
United States House of Representatives – District 18 – GOP Hold
Robert H. Michel (R-inc) – 75,957 – 61.19%
Francis D. Nash (D) – 48,177 – 38.81%
Total Votes – 124,134 – 100.00%
United States House of Representatives – District 19 – GOP Hold
Robert T. McLoskey (R) – 66,547 – 55.91%
David DeDoncker (D) – 52,482 – 44.09%
Total Votes – 119,029 – 100.00%
United States House of Representatives – District 20 – GOP Hold/DEM Loss
Paul Findley (R-inc) – 100,588 – 52.91%
Peter F. Mack, Jr. (D-inc) – 89,522 – 47.09%
Total Votes – 190,110 – 100.00%
United States House of Representatives – District 21 – DEM Hold
Kenneth J. Gray (D-inc) – 96,971 – 59.99%
Frank H. Walker (R) – 64,687 – 40.01%
Total Votes – 161,658 – 100.00%
United States House of Representatives – District 22 – GOP Hold
William L. Springer (R-inc) – 70,870 – 59.75%
Bob Wilson (D) – 47,745 – 40.25%
Scattering – 1 – 0.00%
Total Votes – 118,616 – 100.00%
United States House of Representatives – District 23 – DEM Hold
George E. Shipley (D-inc) – 99,133 – 51.71%
Edward H. Jenison (R) – 92,562 – 48.29%
Total Votes – 191,695 – 100.00%
United States House of Representatives – District 24 – DEM Hold
Melvin Price (D-inc) – 95,522 – 73.75%
Kurt Glaser (R) – 33,993 – 26.25%
Total Votes – 129,515 – 100.00%