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United States · Election results history · 1942 Senate · Illinois
Election 1942 Results

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1942 US Senate election in Illinois

C. Wayland Brooks (Republican) beat Raymond McKeough (Democrat) in Illinois in 1942, 53.2% to 46.4%, a margin of 6.8 points and 202,876 votes.

Illinois changed party: in 1936 it went Democratic, for James H. Lewis.

Republicans led in 93 of the 102 counties as they stood then and Democrats in 9. The largest, Cook, cast 1,593,096 votes and went to the Democrat by 7.0 points. The closest was Gallatin, where 52 votes separated the two parties.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Senate

CandidatePartyVotesShare
C. Wayland Brooks won Republican 1,582,887 53.2%
Raymond McKeough Democratic 1,380,011 46.4%
All other candidates 10,331 0.3%
Total2,973,229

Every county

CountyDemocratRepublicanOthersTotalMargin
Cook 850,949 53.4% 738,919 46.4% 3,228 1,593,096 D+7.0
St. Clair 30,365 50.8% 29,277 49.0% 155 59,797 D+1.8
Sangamon 19,885 41.3% 28,106 58.4% 161 48,152 R+17.1
Madison 23,699 50.9% 22,552 48.5% 295 46,546 D+2.5
Du Page 11,812 26.4% 32,717 73.2% 154 44,683 R+46.8
Lake 13,283 31.7% 28,592 68.1% 93 41,968 R+36.5
Will 15,227 36.7% 26,131 63.0% 126 41,484 R+26.3
Rock Island 19,460 46.9% 21,876 52.8% 131 41,467 R+5.8
Kane 10,867 26.9% 29,379 72.8% 114 40,360 R+45.9
Peoria 13,206 35.3% 24,030 64.3% 132 37,368 R+29.0
La Salle 12,003 33.1% 24,120 66.5% 167 36,290 R+33.4
Winnebago 12,213 35.2% 22,324 64.3% 180 34,717 R+29.1
Vermilion 10,918 36.9% 18,443 62.4% 201 29,562 R+25.5
Macon 15,159 54.1% 12,625 45.1% 212 27,996 D+9.1
Champaign 9,630 39.0% 14,904 60.4% 140 24,674 R+21.4
McLean 8,170 35.5% 14,734 64.0% 129 23,033 R+28.5
Adams 10,316 45.0% 12,505 54.6% 90 22,911 R+9.6
Knox 6,796 33.6% 13,378 66.1% 68 20,242 R+32.5
Kankakee 5,585 28.8% 13,710 70.7% 91 19,386 R+41.9
Macoupin 8,771 45.5% 10,400 54.0% 93 19,264 R+8.5
Franklin 8,682 45.4% 10,299 53.8% 163 19,144 R+8.4
Williamson 7,308 40.7% 10,577 58.8% 89 17,974 R+18.2
Tazewell 8,355 47.0% 9,301 52.4% 103 17,759 R+5.3
Fulton 7,082 42.1% 9,617 57.2% 118 16,817 R+15.1
Henry 5,400 33.1% 10,870 66.5% 65 16,335 R+33.5
McHenry 3,093 19.4% 12,814 80.4% 32 15,939 R+61.0
Marion 7,329 47.0% 8,103 52.0% 164 15,596 R+5.0
Christian 7,538 50.5% 7,233 48.5% 142 14,913 D+2.0
Coles 6,705 45.3% 8,028 54.2% 78 14,811 R+8.9
Saline 6,578 44.7% 8,063 54.8% 77 14,718 R+10.1
Montgomery 6,380 43.9% 8,007 55.0% 161 14,548 R+11.2
Morgan 6,236 43.0% 8,238 56.8% 40 14,514 R+13.8
Bureau 4,244 29.3% 10,193 70.5% 28 14,465 R+41.1
Whiteside 2,487 17.3% 11,851 82.5% 32 14,370 R+65.2
Livingston 3,798 26.5% 10,465 73.1% 54 14,317 R+46.6
Jackson 5,172 36.6% 8,873 62.8% 82 14,127 R+26.2
Stephenson 4,285 31.0% 9,474 68.5% 66 13,825 R+37.5
Jefferson 6,751 50.0% 6,665 49.4% 79 13,495 D+0.6
Randolph 5,349 42.6% 7,181 57.1% 38 12,568 R+14.6
De Kalb 3,059 24.5% 9,369 75.0% 63 12,491 R+50.5
Iroquois 2,968 24.4% 9,145 75.2% 44 12,157 R+50.8
Lee 2,744 23.9% 8,727 76.0% 17 11,488 R+52.1
Hancock 4,286 37.8% 6,969 61.5% 73 11,328 R+23.7
Logan 4,084 36.3% 7,138 63.5% 20 11,242 R+27.2
Fayette 5,260 46.8% 5,846 52.0% 130 11,236 R+5.2
Shelby 5,218 47.6% 5,585 50.9% 159 10,962 R+3.3
Ogle 2,104 19.8% 8,459 79.7% 48 10,611 R+59.9
Edgar 4,181 39.8% 6,289 59.9% 32 10,502 R+20.1
McDonough 3,156 30.7% 7,092 68.9% 40 10,288 R+38.3
Alexander 4,986 51.0% 4,741 48.5% 51 9,778 D+2.5
Pike 4,631 48.9% 4,775 50.4% 67 9,473 R+1.5
Clinton 2,989 32.7% 6,121 66.9% 44 9,154 R+34.2
Crawford 4,057 44.4% 5,042 55.1% 48 9,147 R+10.8
Perry 3,674 40.2% 5,412 59.2% 49 9,135 R+19.0
Effingham 3,971 46.1% 4,593 53.3% 52 8,616 R+7.2
Warren 2,705 32.0% 5,690 67.3% 59 8,454 R+35.3
Wayne 3,318 39.6% 5,022 59.9% 45 8,385 R+20.3
White 3,845 46.5% 4,366 52.8% 61 8,272 R+6.3
Woodford 2,740 33.8% 5,315 65.6% 43 8,098 R+31.8
Clark 3,316 41.3% 4,673 58.2% 43 8,032 R+16.9
Grundy 2,186 27.9% 5,656 72.1% 7 7,849 R+44.2
Lawrence 2,958 39.2% 4,461 59.1% 128 7,547 R+19.9
Clay 3,059 42.9% 3,980 55.8% 94 7,133 R+12.9
Douglas 2,808 39.7% 4,219 59.7% 39 7,066 R+20.0
Jo Daviess 1,926 27.3% 5,081 72.1% 37 7,044 R+44.8
Richland 2,948 42.2% 3,987 57.1% 53 6,988 R+14.9
Mercer 2,202 31.5% 4,730 67.8% 48 6,980 R+36.2
De Witt 2,695 39.2% 4,138 60.2% 37 6,870 R+21.0
Union 3,461 50.4% 3,388 49.3% 17 6,866 D+1.1
Washington 2,035 29.7% 4,765 69.6% 43 6,843 R+39.9
Cass 3,191 48.5% 3,354 51.0% 29 6,574 R+2.5
Mason 2,685 41.3% 3,795 58.4% 23 6,503 R+17.1
Ford 1,672 25.7% 4,818 74.1% 12 6,502 R+48.4
Greene 3,120 48.1% 3,345 51.6% 19 6,484 R+3.5
Jasper 2,882 46.6% 3,275 53.0% 22 6,179 R+6.4
Marshall 2,172 35.9% 3,872 64.0% 4 6,048 R+28.1
Bond 2,002 35.1% 3,350 58.7% 354 5,706 R+23.6
Hamilton 2,496 43.9% 3,159 55.5% 37 5,692 R+11.6
Carroll 1,213 21.4% 4,435 78.3% 15 5,663 R+56.9
Monroe 2,017 36.0% 3,583 63.9% 4 5,604 R+27.9
Jersey 2,370 43.5% 3,057 56.2% 16 5,443 R+12.6
Piatt 2,164 40.2% 3,198 59.4% 19 5,381 R+19.2
Boone 811 15.3% 4,461 84.4% 15 5,287 R+69.0
Moultrie 2,267 44.1% 2,822 54.9% 53 5,142 R+10.8
Wabash 2,072 40.8% 2,928 57.6% 79 5,079 R+16.9
Schuyler 2,207 45.0% 2,647 54.0% 51 4,905 R+9.0
Cumberland 2,211 45.4% 2,637 54.1% 23 4,871 R+8.7
Pulaski 1,327 28.5% 3,313 71.0% 24 4,664 R+42.6
Menard 1,798 39.7% 2,715 59.9% 16 4,529 R+20.2
Kendall 967 22.7% 3,281 76.9% 16 4,264 R+54.3
Johnson 1,145 28.8% 2,816 70.8% 18 3,979 R+42.0
Massac 955 24.4% 2,929 75.0% 23 3,907 R+50.5
Scott 1,744 45.3% 2,094 54.4% 13 3,851 R+9.1
Gallatin 1,827 48.9% 1,879 50.3% 30 3,736 R+1.4
Henderson 1,262 34.7% 2,361 64.9% 15 3,638 R+30.2
Hardin 1,221 39.3% 1,859 59.9% 25 3,105 R+20.5
Brown 1,639 53.4% 1,402 45.7% 28 3,069 D+7.7
Stark 700 22.8% 2,359 76.9% 8 3,067 R+54.1
Edwards 662 21.7% 2,358 77.2% 33 3,053 R+55.6
Pope 769 25.6% 2,221 74.0% 13 3,003 R+48.4
Calhoun 1,105 38.7% 1,725 60.4% 25 2,855 R+21.7
Putnam 682 31.3% 1,491 68.4% 7 2,180 R+37.1

Counties as they stood in 1942; some have since been split, merged or renamed. Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Illinois Senate elections we hold

YearWinnerMargin
2022 Tammy Duckworth (D) D+15.3
2020 Richard J Durbin (D) D+16.0
2016 Tammy Duckworth (D) D+15.1
2014 Dick Durbin (D) D+10.9
2010 Mark Kirk (R) R+1.6
2008 Richard J. Durbin (D) D+39.3
2004 Barack Obama (D) D+42.9
2002 Richard J. Durbin (D) D+22.3
1998 Peter G. Fitzgerald (R) R+2.9
1996 Richard J. Durbin (D) D+15.4
1992 Carol Moseley-Braun (D) D+10.2
1990 Paul Simon (D) D+30.1
1986 Alan J. Dixon (D) D+31.4
1984 Paul Simon (D) D+1.9
1980 Alan J. Dixon (D) D+13.5
1978 Charles H. Percy (R) R+7.9
1974 Adlai Stevenson III (D) D+24.9
1972 Charles H. Percy (R) R+24.9
1968 Everett Dirksen (R) R+6.4
1966 Charles H. Percy (R) R+11.0
1962 Everett Dirksen (R) R+5.7
1960 Paul H. Douglas (D) D+9.4
1956 Everett Dirksen (R) R+8.4
1954 Paul H. Douglas (D) D+7.1
1950 Everett Dirksen (R) R+8.1
1948 Paul H. Douglas (D) D+10.5
1944 Scott W. Lucas (D) D+5.6
1942 C. Wayland Brooks (R) R+6.8
1938 Scott W. Lucas (D) D+3.0
1936 James H. Lewis (D) D+15.8
1932 William H. Dieterich (D) D+6.2
1930 James H. Lewis (D) D+33.3
1926 Frank L. Smith (R) R+3.7
1924 Charles S. Deneen (R) R+28.2
1920 William B. McKinley (R) R+40.0
1918 Medill McCormick (R) R+5.6
1914 Lawrence Y. Sherman (R) R+1.7