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Cass County, IL


Designated Market Area: Quincy-Hannibal-Keokuk, IL-IA-MO
USDA County Type (2015): Manufacturing
American Communities Project County Type (2023): Rural Middle America

Places in Cass County, IL     [Sort places by name]

 

Tracts in Cass County, IL

   



Click here to view demographic data for Cass County, IL

2022 population: 12,657   ( 985 from 2010 , 387 from 2020)
Land area: 375.8 square miles
Population density: 33.7 persons per square mile

2022 Census data
White:9,098 71.88% 16.0%
Black:5294.18% 39.6%
Indian:270.21% 80.0%
Asian:1341.06% 204.5%
2+ races:1421.12% 82.1%
Hispanic:2,72721.55% 19.0%
Total non-White:3,55928.12% 26.6%

2020-2022 ComponentsNumberRate
Births:372 14.3
Deaths:34913.4
Net Migration: -509-19.5
Net Immigration: 1074.1
Change in White population:-1,732 -12.7
Change in Non-White pop.:747 5.5



Historical Presidential Election Results for Cass County, IL



Click on the Year to view county-level data for that election.

YearTurnout WinnerRunner-Up OtherTotal Votes Diff
(St)
Diff
(US)
PSV
2020 56% Donald Trump* (R) 3,625 68.1% Joe Biden (D) 1,615 30.3% 86 [+] 1.6% 5,326 28 21 0.09%
2016 51% Donald Trump (R) 3,216 62.8% Hillary Clinton (D) 1,621 31.6% 287 [+] 5.6% 5,124 24 17 0.09%
2012 48% Mitt Romney (R) 2,707 55.5% Barack Obama* (D) 2,053 42.1% 118 [+] 2.4% 4,878 15 8 0.09%
2008 53% Barack Obama (D) 2,690 49.5% John McCain (R) 2,617 48.2% 125 [+] 2.3% 5,432 11 3 0.10%
2004 56% George W. Bush* (R) 3,163 55.5% John Kerry (D) 2,492 43.7% 45 [+] 0.8% 5,700 11 5 0.11%
2000 58% George W. Bush (R) 2,968 50.3% Albert Gore, Jr. (D) 2,789 47.3% 142 [+] 2.4% 5,899 8 2 0.12%
1996 56% Bill Clinton* (D) 2,834 50.0% Robert Dole (R) 2,214 39.1% 619 [+] 10.9% 5,667 2 -2 0.13%
1992 64% Bill Clinton (D) 3,200 49.6% George Bush* (R) 2,162 33.5% 1,085 [+] 16.8% 6,447 -1 -4 0.13%
1988 62% Michael Dukakis (D) 3,316 52.9% George Bush (R) 2,916 46.5% 35 [+] 0.6% 6,267 -4 -7 0.14%
1984 61% Ronald Reagan* (R) 3,435 53.7% Walter Mondale (D) 2,937 45.9% 27 0.4% 6,399 -2 -5 0.13%
1980 63% Ronald Reagan (R) 3,965 58.6% Jimmy Carter* (D) 2,543 37.6% 262 [+] 3.9% 6,770 9 8 0.14%
1976 72% Jimmy Carter (D) 3,589 50.2% Gerald Ford* (R) 3,524 49.3% 31 [+] 0.4% 7,144 -1 1 0.15%
1972 75% Richard Nixon* (R) 4,414 61.1% George McGovern (D) 2,803 38.8% 2 [+] 0.0% 7,219 2 0 0.15%
1968 81% Richard Nixon (R) 3,411 47.8% Hubert Humphrey (D) 3,302 46.3% 426 [+] 6.0% 7,139 1 4 0.15%
1964 81% Lyndon Johnson* (D) 4,424 60.9% Barry Goldwater (R) 2,836 39.1% 0 0.0% 7,260 -1 1 0.15%
1960 86% Richard Nixon (R) 4,015 52.0% John Kennedy (D) 3,692 47.9% 8 0.1% 7,715 2 2 0.16%
1956 75% Dwight Eisenhower* (R) 4,125 55.0% Adlai Stevenson (D) 3,368 44.9% 11 0.1% 7,504 -5 -2 0.17%
1952 75% Dwight Eisenhower (R) 4,152 54.9% Adlai Stevenson (D) 3,405 45.0% 8 0.1% 7,565 0 0 0.17%
1948 70% Harry Truman* (D) 3,776 52.3% Thomas Dewey (R) 3,391 47.0% 50 [+] 0.7% 7,217 -2 2 0.18%
1944 71% Franklin Roosevelt* (D) 3,909 51.5% Thomas Dewey (R) 3,641 48.0% 35 0.5% 7,585 0 2 0.19%
1940 85% Franklin Roosevelt* (D) 4,854 51.6% Wendell Willkie (R) 4,490 47.7% 72 0.8% 9,416 -1 3 0.22%
1936 87% Franklin Roosevelt* (D) 5,786 63.7% Alf Landon (R) 3,209 35.3% 95 [+] 1.0% 9,090 -4 -1 0.23%
1932 82% Franklin Roosevelt (D) 5,669 66.6% Herbert Hoover* (R) 2,745 32.3% 93 [+] 1.1% 8,507 -10 -7 0.25%
1928 74% Herbert Hoover (R) 4,009 53.5% Al Smith (D) 3,461 46.2% 24 [+] 0.3% 7,494 -3 -5 0.24%
1924 73% Calvin Coolidge (R) 3,139 41.2% John Davis (D) 2,909 38.2% 1,565 [+] 20.6% 7,613 -18 -13 0.31%
1920 68% Warren Harding (R) 3,956 54.1% James Cox (D) 2,861 39.1% 501 [+] 6.8% 7,318 -14 -6 0.35%
1916 77% Woodrow Wilson* (D) 4,485 55.5% Charles Evans Hughes (R) 3,193 39.5% 404 [+] 5.0% 8,082 -13 -7 0.37%
1912 40% Woodrow Wilson (D) 2,223 53.0% Theodore Roosevelt (Prog) 1,086 25.9% 886 [+] 21.1% 4,195 -5 -6 0.37%
1908 45% William J. Bryan (D) 2,434 55.0% William Taft (R) 1,878 42.5% 111 [+] 2.5% 4,423 -12 -9 0.38%
1904 40% Alton Parker (D) 1,906 48.8% Theodore Roosevelt (R) 1,827 46.8% 171 [+] 4.4% 3,904 -12 -10 0.36%
1900 47% William J. Bryan (D) 2,626 57.9% William McKinley* (R) 1,846 40.7% 61 [+] 1.3% 4,533 -12 -11 0.40%
* incumbent         PSV: percent of state vote



2020 President, Cass County, IL
CandidateVotesPct
Joe Biden (D) 1,615 30.3%
Donald Trump* (R) 3,625 68.1%
Jo Jorgensen (Lbt) 50 0.9%
Other 36 0.7%
TOTAL 5,326
Turnout: 56% Diff (St): 28 Diff (US): 21


2016 President, Cass County, IL
CandidateVotesPct
Hillary Clinton (D) 1,621 31.6%
Donald Trump (R) 3,216 62.8%
Gary Johnson (Lbt) 172 3.4%
Jill Stein (Grn) 51 1.0%
Other 64 1.2%
TOTAL 5,124
Turnout: 51% Diff (St): 24 Diff (US): 17


2012 President, Cass County, IL
CandidateVotesPct
Barack Obama* (D) 2,053 42.1%
Mitt Romney (R) 2,707 55.5%
Gary Johnson (Lbt) 55 1.1%
Other 63 1.3%
TOTAL 4,878
Turnout: 48% Diff (St): 15 Diff (US): 8


2008 President, Cass County, IL
CandidateVotesPct
Barack Obama (D) 2,690 49.5%
John McCain (R) 2,617 48.2%
Ralph Nader (I) 44 0.8%
Bob Barr (Lbt) 20 0.4%
Other 61 1.1%
TOTAL 5,432
Turnout: 53% Diff (St): 11 Diff (US): 3


2004 President, Cass County, IL
CandidateVotesPct
George W. Bush* (R) 3,163 55.5%
John Kerry (D) 2,492 43.7%
Other 45 0.8%
TOTAL 5,700
Turnout: 56% Diff (St): 11 Diff (US): 5


2000 President, Cass County, IL
CandidateVotesPct
George W. Bush (R) 2,968 50.3%
Albert Gore, Jr. (D) 2,789 47.3%
Ralph Nader (Grn) 94 1.6%
Pat Buchanan (Ref) 36 0.6%
Other 12 0.2%
TOTAL 5,899
Turnout: 58% Diff (St): 8 Diff (US): 2


1996 President, Cass County, IL
CandidateVotesPct
Bill Clinton* (D) 2,834 50.0%
Robert Dole (R) 2,214 39.1%
Ross Perot (Ref) 589 10.4%
Harry Browne (Lbt) 14 0.2%
Other 16 0.3%
TOTAL 5,667
Turnout: 56% Diff (St): 2 Diff (US): -2


1992 President, Cass County, IL
CandidateVotesPct
Bill Clinton (D) 3,200 49.6%
George Bush* (R) 2,162 33.5%
Ross Perot (I) 1,072 16.6%
Other 13 0.2%
TOTAL 6,447
Turnout: 64% Diff (St): -1 Diff (US): -4


1988 President, Cass County, IL
CandidateVotesPct
George Bush (R) 2,916 46.5%
Michael Dukakis (D) 3,316 52.9%
Ron Paul (Lbt) 8 0.1%
Other 27 0.4%
TOTAL 6,267
Turnout: 62% Diff (St): -4 Diff (US): -7


1984 President, Cass County, IL
CandidateVotesPct
Ronald Reagan* (R) 3,435 53.7%
Walter Mondale (D) 2,937 45.9%
Other 27 0.4%
TOTAL 6,399
Turnout: 61% Diff (St): -2 Diff (US): -5


1980 President, Cass County, IL
CandidateVotesPct
Ronald Reagan (R) 3,965 58.6%
Jimmy Carter* (D) 2,543 37.6%
John Anderson (I) 199 2.9%
Edward Clark (Lbt) 55 0.8%
Other 8 0.1%
TOTAL 6,770
Turnout: 63% Diff (St): 9 Diff (US): 8


1976 President, Cass County, IL
CandidateVotesPct
Jimmy Carter (D) 3,589 50.2%
Gerald Ford* (R) 3,524 49.3%
Eugene McCarthy (I) 25 0.3%
Other 6 0.1%
TOTAL 7,144
Turnout: 72% Diff (St): -1 Diff (US): 1


1972 President, Cass County, IL
CandidateVotesPct
Richard Nixon* (R) 4,414 61.1%
George McGovern (D) 2,803 38.8%
Other 2 0.0%
TOTAL 7,219
Turnout: 75% Diff (St): 2 Diff (US): 0


1968 President, Cass County, IL
CandidateVotesPct
Richard Nixon (R) 3,411 47.8%
Hubert Humphrey (D) 3,302 46.3%
George Wallace (AIP) 424 5.9%
Other 2 0.0%
TOTAL 7,139
Turnout: 81% Diff (St): 1 Diff (US): 4


1964 President, Cass County, IL
CandidateVotesPct
Lyndon Johnson* (D) 4,424 60.9%
Barry Goldwater (R) 2,836 39.1%
TOTAL 7,260
Turnout: 81% Diff (St): -1 Diff (US): 1


1960 President, Cass County, IL
CandidateVotesPct
John Kennedy (D) 3,692 47.9%
Richard Nixon (R) 4,015 52.0%
Other 8 0.1%
TOTAL 7,715
Turnout: 86% Diff (St): 2 Diff (US): 2


1956 President, Cass County, IL
CandidateVotesPct
Dwight Eisenhower* (R) 4,125 55.0%
Adlai Stevenson (D) 3,368 44.9%
Other 11 0.1%
TOTAL 7,504
Turnout: 75% Diff (St): -5 Diff (US): -2


1952 President, Cass County, IL
CandidateVotesPct
Dwight Eisenhower (R) 4,152 54.9%
Adlai Stevenson (D) 3,405 45.0%
Other 8 0.1%
TOTAL 7,565
Turnout: 75% Diff (St): 0 Diff (US): 0


1948 President, Cass County, IL
CandidateVotesPct
Harry Truman* (D) 3,776 52.3%
Thomas Dewey (R) 3,391 47.0%
Other 50 0.7%
TOTAL 7,217
Turnout: 70% Diff (St): -2 Diff (US): 2


1944 President, Cass County, IL
CandidateVotesPct
Franklin Roosevelt* (D) 3,909 51.5%
Thomas Dewey (R) 3,641 48.0%
Other 35 0.5%
TOTAL 7,585
Turnout: 71% Diff (St): 0 Diff (US): 2


1940 President, Cass County, IL
CandidateVotesPct
Franklin Roosevelt* (D) 4,854 51.6%
Wendell Willkie (R) 4,490 47.7%
Other 72 0.8%
TOTAL 9,416
Turnout: 85% Diff (St): -1 Diff (US): 3


1936 President, Cass County, IL
CandidateVotesPct
Franklin Roosevelt* (D) 5,786 63.7%
Alf Landon (R) 3,209 35.3%
William Lemke (Union) 78 0.9%
Norman Thomas (Soc) 8 0.1%
Other 9 0.1%
TOTAL 9,090
Turnout: 87% Diff (St): -4 Diff (US): -1


1932 President, Cass County, IL
CandidateVotesPct
Franklin Roosevelt (D) 5,669 66.6%
Herbert Hoover* (R) 2,745 32.3%
Norman Thomas (Soc) 58 0.7%
Other 35 0.4%
TOTAL 8,507
Turnout: 82% Diff (St): -10 Diff (US): -7


1928 President, Cass County, IL
CandidateVotesPct
Herbert Hoover (R) 4,009 53.5%
Al Smith (D) 3,461 46.2%
Norman Thomas (Soc) 17 0.2%
Other 7 0.1%
TOTAL 7,494
Turnout: 74% Diff (St): -3 Diff (US): -5


1924 President, Cass County, IL
CandidateVotesPct
Calvin Coolidge (R) 3,139 41.2%
John Davis (D) 2,909 38.2%
Robert LaFollette (Prog) 1,547 20.3%
Other 18 0.2%
TOTAL 7,613
Turnout: 73% Diff (St): -18 Diff (US): -13


1920 President, Cass County, IL
CandidateVotesPct
Warren Harding (R) 3,956 54.1%
James Cox (D) 2,861 39.1%
Eugene Debs (Soc) 53 0.7%
Parley Christiansen (FL) 374 5.1%
Aaron Watkins (Proh) 65 0.9%
Other 9 0.1%
TOTAL 7,318
Turnout: 68% Diff (St): -14 Diff (US): -6


1916 President, Cass County, IL
CandidateVotesPct
Woodrow Wilson* (D) 4,485 55.5%
Charles Evans Hughes (R) 3,193 39.5%
Allan Benson (Soc) 152 1.9%
James Hanly (Proh) 236 2.9%
Other 16 0.2%
TOTAL 8,082
Turnout: 77% Diff (St): -13 Diff (US): -7


1912 President, Cass County, IL
CandidateVotesPct
Woodrow Wilson (D) 2,223 53.0%
Theodore Roosevelt (Prog) 1,086 25.9%
William Taft* (R) 719 17.1%
Eugene Debs (Soc) 103 2.5%
Eugene Chafin (Proh) 53 1.3%
Other 11 0.3%
TOTAL 4,195
Turnout: 40% Diff (St): -5 Diff (US): -6


1908 President, Cass County, IL
CandidateVotesPct
William Taft (R) 1,878 42.5%
William J. Bryan (D) 2,434 55.0%
Eugene Debs (Soc) 14 0.3%
Eugene Chafin (Proh) 90 2.0%
Thomas Hisgen (I) 5 0.1%
Other 2 0.0%
TOTAL 4,423
Turnout: 45% Diff (St): -12 Diff (US): -9


1904 President, Cass County, IL
CandidateVotesPct
Theodore Roosevelt (R) 1,827 46.8%
Alton Parker (D) 1,906 48.8%
Eugene Debs (Soc) 12 0.3%
Silas Swallow (Proh) 120 3.1%
Thomas Watson (Pop) 27 0.7%
Other 12 0.3%
TOTAL 3,904
Turnout: 40% Diff (St): -12 Diff (US): -10


1900 President, Cass County, IL
CandidateVotesPct
William McKinley* (R) 1,846 40.7%
William J. Bryan (D) 2,626 57.9%
John Woolley (Proh) 57 1.3%
Eugene Debs (Soc) 1 0.0%
Other 3 0.1%
TOTAL 4,533
Turnout: 47% Diff (St): -12 Diff (US): -11
* incumbent

Historical Statewide Election Results for Cass County, IL

Click on the Year to view county-level data for that election.

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2022 S3 41% Kathy Salvi (R) 2,581 65.6% Tammy Duckworth* (D) 1,260 32.0% 91 [+] 2.3% 3,932 24 0.10%
2022 G 42% Darren Bailey (R) 2,782 69.7% J.B. Pritzker* (D) 1,098 27.5% 113 [+] 2.8% 3,993 27 0.10%
2020 S2 55% Mark Curran (R) 3,260 62.3% Richard Durbin* (D) 1,862 35.6% 109 [+] 2.1% 5,231 23 0.09%
2018 G 46% Bruce Rauner* (R) 2,191 48.5% J.B. Pritzker (D) 1,483 32.8% 848 [+] 18.8% 4,522 10 0.10%
2016 S3 50% Mark Kirk* (R) 2,917 58.1% Tammy Duckworth (D) 1,799 35.8% 305 [+] 6.1% 5,021 18 0.09%
2014 S2 38% Jim Oberweis (R) 2,002 53.0% Richard Durbin* (D) 1,586 42.0% 187 [+] 5.0% 3,775 10 0.10%
2014 G 37% Bruce Rauner (R) 2,242 59.5% Pat Quinn* (D) 1,249 33.1% 278 [+] 7.4% 3,769 9 0.10%
2010 S3 37% Mark Kirk (R) 2,305 60.6% Alexi Giannoulias (D) 1,190 31.3% 311 [+] 8.2% 3,806 13 0.10%
2010 G 38% Bill Brady (R) 2,433 63.0% Pat Quinn* (D) 1,088 28.2% 341 [+] 8.8% 3,862 17 0.10%
2008 S2 52% Richard Durbin* (D) 3,547 66.7% Steve Sauerberg (R) 1,628 30.6% 143 [+] 2.7% 5,318 2 0.10%
2006 G 44% Judy Baar Topinka (R) 2,374 52.7% Rod Blagojevich* (D) 1,635 36.3% 498 [+] 11.0% 4,507 13 0.13%
2004 S3 53% Barack Obama (D) 3,341 61.3% Alan Keyes (R) 1,896 34.8% 213 [+] 3.9% 5,450 8 0.11%
2002 S2 52% Richard Durbin* (D) 3,248 61.2% Jim Durkin (R) 1,990 37.5% 68 [+] 1.3% 5,306 -1 0.15%
2002 G 52% Rod Blagojevich (D) 2,630 49.3% Jim Ryan (R) 2,581 48.3% 129 [+] 2.4% 5,340 3 0.15%
1998 S3 44% Peter Fitzgerald (R) 2,693 60.2% Carol Moseley-Braun* (D) 1,704 38.1% 78 [+] 1.7% 4,475 10 0.13%
1998 G 45% Glenn Poshard (D) 2,370 52.2% George Ryan (R) 2,123 46.8% 43 [+] 0.9% 4,536 -4 0.14%
1996 S2 55% Richard Durbin (D) 2,983 53.2% Al Salvi (R) 2,528 45.0% 101 [+] 1.8% 5,612 4 0.13%
1994 G 49% Jim Edgar* (R) 3,205 65.2% Dawn Clark Netsch (D) 1,632 33.2% 75 [+] 1.5% 4,912 1 0.16%
1992 S3 63% Carol Moseley-Braun (D) 3,361 53.8% Richard Williamson (R) 2,654 42.4% 238 [+] 3.8% 6,253 -1 0.13%
1990 S2 53% Paul Simon* (D) 3,591 67.7% Lynn Martin (R) 1,713 32.3% 0 0.0% 5,304 -3 0.16%
1990 G 54% Neil Hartigan (D) 2,913 54.7% Jim Edgar (R) 2,372 44.5% 42 [+] 0.8% 5,327 -6 0.16%
1986 S3 51% Alan Dixon* (D) 3,525 66.6% Judy Koehler (R) 1,713 32.4% 53 [+] 1.0% 5,291 -1 0.17%
1986 G 52% James Thompson* (R) 2,716 50.9% Adlai Stevenson III (Illinois Solidarity) 2,253 42.2% 367 [+] 6.9% 5,336 -2 0.17%
1984 S2 61% Paul Simon (D) 3,295 52.2% Charles Percy* (R) 2,966 47.0% 56 [+] 0.9% 6,317 -1 0.13%
1982 G 50% Adlai Stevenson III (D) 2,634 49.8% James Thompson* (R) 2,616 49.5% 35 [+] 0.7% 5,285 0 0.14%
1980 S3 62% Alan Dixon (D) 3,545 53.3% David O'Neal (R) 3,069 46.1% 39 [+] 0.6% 6,653 4 0.15%
1978 S2 50% Alex Seith (D) 2,677 53.6% Charles Percy* (R) 2,309 46.2% 10 [+] 0.2% 4,996 -7 0.16%
1978 G 50% James Thompson* (R) 2,718 53.7% Michael Bakalis (D) 2,336 46.2% 6 [+] 0.1% 5,060 -5 0.16%
1976 G 71% James Thompson (R) 4,624 65.4% Michael Howlitt (D) 2,441 34.5% 2 [+] 0.0% 7,067 1 0.15%
1974 S3 50% Adlai Stevenson III* (D) 3,046 61.6% George Burditt (R) 1,895 38.3% 4 [+] 0.1% 4,945 1 0.17%
1972 S2 73% Charles Percy* (R) 4,431 62.7% Roman Pucinski (D) 2,634 37.3% 4 [+] 0.1% 7,069 0 0.15%
1972 G 75% Daniel Walker (D) 3,916 53.9% Richard Ogilvie* (R) 3,345 46.0% 3 [+] 0.0% 7,264 -3 0.16%
1970 S3 71% Adlai Stevenson III (D) 3,682 57.9% Ralph Smith* (R) 2,670 42.0% 3 [+] 0.0% 6,355 0 0.18%
1968 S3 78% Everett Dirksen* (R) 3,676 53.2% William Clark (D) 3,232 46.8% 5 [+] 0.1% 6,913 0 0.16%
1968 G 79% Samuel Shapiro* (D) 3,703 52.9% Richard Ogilvie (R) 3,285 47.0% 6 [+] 0.1% 6,994 -4 0.16%
1966 S2 73% Charles Percy (R) 3,311 51.3% Paul Douglas* (D) 3,143 48.7% 0 0.0% 6,454 -4 0.17%
1964 G 81% Otto Kerner* (D) 4,088 56.9% Charles Percy (R) 3,099 43.1% 0 0.0% 7,187 -5 0.15%
1962 S3 71% Sidney Yates (D) 3,194 50.1% Everett Dirksen* (R) 3,184 49.9% 0 0.0% 6,378 -3 0.17%
1960 S2 83% Paul Douglas* (D) 4,172 55.6% Samuel Witwer (R) 3,322 44.3% 6 [+] 0.1% 7,500 -1 0.16%
1960 G 85% Otto Kerner (D) 4,187 55.0% William Stratton* (R) 3,413 44.9% 8 [+] 0.1% 7,608 1 0.16%
*: incumbent               +: ran on additional party lines               Type: G: Governor; S1,S2,S3: Senate Class 1, 2 or 3
italics: special election           RO: runoff election           PSV: percent of state vote


Historical U.S. House Election Results for Cass County, IL

Click on the District to view county-level data for that election (where available).

DateDistrictWinnerRunner-Up OtherTotal Votes
2022-11-08 IL15Mary Miller* (R) 2,789 71.0% Paul Lange (D) 1,140 29.0% 0 0.0% 3,929
County Total for 2022-11-08:   3,929
2020-11-03 IL18Darin LaHood* (R) 3,903 75.0% George Petrilli (D) 1,301 25.0% 0 0.0% 5,204
County Total for 2020-11-03:   5,204
2018-11-06 IL18Darin LaHood* (R) 3,195 70.9% Junius Rodriguez (D) 1,314 29.1% 0 0.0% 4,509
County Total for 2018-11-06:   4,509
2016-11-08 IL18Darin LaHood* (R) 3,612 72.0% Junius Rodriguez (D) 1,403 28.0% 0 0.0% 5,015
County Total for 2016-11-08:   5,015
2015-09-10 sp IL18Darin LaHood (R) 457 65.5% Rob Mellon (D) 241 34.5% 0 0.0% 698
County Total for 2015-09-10:   698
2014-11-04 IL18Aaron Schock* (R) 2,713 56.9% Darrel Miller (D) 2,057 43.1% 0 0.0% 4,770
County Total for 2014-11-04:   4,770
2012-11-06 IL18Aaron Schock* (R) 3,482 72.6% Steve Waterworth (D) 1,312 27.4% 0 0.0% 4,794
County Total for 2012-11-06:   4,794
2010-11-02 IL18Aaron Schock* (R) 2,709 71.1% Diedre Hirner (D) 947 24.8% 155 4.1% 3,811
County Total for 2010-11-02:   3,811
2008-11-04 IL18Aaron Schock (R) 3,330 62.2% Colleen Callahan (D) 1,946 36.3% 81 1.5% 5,357
County Total for 2008-11-04:   5,357
2006-11-07 IL18Ray LaHood* (R) 3,107 68.8% Steve Waterworth (D) 1,411 31.2% 0 0.0% 4,518
County Total for 2006-11-07:   4,518
2004-11-02 IL18Ray LaHood* (R) 4,170 74.2% Steve Waterworth (D) 1,450 25.8% 0 0.0% 5,620
County Total for 2004-11-02:   5,620
2002-11-05 IL18Ray LaHood* (R) 4,480 100.0% 0 0.0% 4,480
County Total for 2002-11-05:   4,480
2000-11-07 IL18Ray LaHood* (R) 3,765 66.6% Joyce Harant (D) 1,890 33.4% 0 0.0% 5,655
County Total for 2000-11-07:   5,655
1998-11-03 IL18Ray LaHood* (R) 3,430 100.0% 0 0.0% 3,430
County Total for 1998-11-03:   3,430
1996-11-05 IL18Ray LaHood* (R) 2,781 50.5% Mike Curran (D) 2,722 49.5% 0 0.0% 5,503
County Total for 1996-11-05:   5,503
1994-11-08 IL18Ray LaHood (R) 2,654 54.4% Douglas Stephens (D) 2,224 45.6% 1 0.0% 4,879
County Total for 1994-11-08:   4,879
1992-11-03 IL18Bob Michel* (R) 3,414 54.6% Ronald Hawkins (D) 2,842 45.4% 0 0.0% 6,256
County Total for 1992-11-03:   6,256
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Cass County, IL

Party registration is not used in this state, however as of 2022 registrations in Cass County, IL were estimated to be 29% Republican and 28% Democrat.

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2022 7,642 0 0.0% 0 0.0% 7,642 100.0% n/a n/a 80%
2020 7,772 0 0.0% 0 0.0% 7,772 100.0% n/a n/a 82%
2018 7,897 0 0.0% 0 0.0% 7,897 100.0% n/a n/a 82%
2016 8,043 0 0.0% 0 0.0% 8,043 100.0% n/a n/a 82%
2012 9,391 0 0.0% 0 0.0% 9,391 100.0% n/a n/a 93%
2010 9,830 0 0.0% 0 0.0% 9,830 100.0% n/a n/a 96%
2008 9,650 0 0.0% 0 0.0% 9,650 100.0% n/a n/a 94%
2006 9,037 0 0.0% 0 0.0% 9,037 100.0% n/a n/a 88%
2004 9,279 0 0.0% 0 0.0% 9,279 100.0% n/a n/a 91%
2000 9,924 0 0.0% 0 0.0% 9,924 100.0% n/a n/a 97%
1994 9,012 0 0.0% 0 0.0% 9,012 100.0% n/a n/a 90%
1986 9,346 0 0.0% 0 0.0% 9,346 100.0% n/a n/a 91%
VAPOP% is the estimated percentage of voting age population that is registered.
Registration data may include "inactive" voters.   Data for each year pertains to the November elections.