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Randolph County, IL


Designated Market Area: St. Louis, MO-IL
USDA County Type (2025): Manufacturing
American Communities Project County Type (2023): Working Class Country

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

 

Tracts in Randolph County, IL

   



Click here to view demographic data for Randolph County, IL

2024 population: 29,903   ( 256 from 2020)
Land area: 575.4 square miles
Population density: 52.0 persons per square mile

2024 Census data
White:25,452 85.12% 3.0%
Black:2,3998.02% 2.1%
Indian:700.23% 16.7%
Asian:3341.12% 108.8%
2+ races:4131.38% 23.3%
Hispanic:1,2354.13% 21.2%
Total non-White:4,45114.88% 13.4%

2020-2024 ComponentsNumberRate
Births:1,238 10.3
Deaths:1,70614.1
Net Migration: -96-0.8
Net Immigration: 3132.6
Change in White population:-783 -2.6
Change in Non-White pop.:527 1.7



Historical Presidential Election Results for Randolph County, IL

Recent Trends
VotesΔ MarginSwing %
2024 vs. 2020 R -452 D +321 D + 0.2%
D -131
2024 vs. 2016 R +601 R +579 R + 1.9%
D +22
2020 vs. 2016 R +1,053 R +900 R + 2.1%
D +153
2024 vs. 2012 R +2,334 R +4,632 R + 32.8%
D -2,298
2016 vs. 2008 R +2,485 R +6,441 R + 48.0%
D -3,956
How to interpret this table


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

YearTurnout WinnerRunner-Up OtherTotal Votes Diff
(St) 		Diff
(US) 		PSV
2024 60% Donald Trump (R) 10,624 73.9% Kamala Harris (D) 3,461 24.1% 288 [+] 2.0% 14,373 31 24 0.25%
2020 62% Donald Trump* (R) 11,076 74.3% Joe Biden (D) 3,592 24.1% 242 [+] 1.6% 14,910 34 27 0.25%
2016 56% Donald Trump (R) 10,023 70.6% Hillary Clinton (D) 3,439 24.2% 732 [+] 5.2% 14,194 32 25 0.25%
2012 55% Mitt Romney (R) 8,290 57.4% Barack Obama* (D) 5,759 39.9% 389 [+] 2.7% 14,438 17 10 0.27%
2008 57% John McCain (R) 7,538 49.6% Barack Obama (D) 7,395 48.6% 269 [+] 1.8% 15,202 13 4 0.27%
2004 56% George W. Bush* (R) 8,076 54.0% John Kerry (D) 6,771 45.3% 109 [+] 0.7% 14,956 10 3 0.28%
2000 54% George W. Bush (R) 7,127 49.9% Albert Gore, Jr. (D) 6,794 47.6% 366 [+] 2.6% 14,287 7 2 0.30%
1996 56% Bill Clinton* (D) 7,419 50.7% Robert Dole (R) 5,422 37.0% 1,806 [+] 12.3% 14,647 0 -4 0.34%
1992 63% Bill Clinton (D) 8,529 51.5% George Bush* (R) 4,899 29.6% 3,137 [+] 18.9% 16,565 -5 -8 0.33%
1988 59% Michael Dukakis (D) 7,844 51.2% George Bush (R) 7,396 48.3% 78 [+] 0.5% 15,318 -2 -5 0.34%
1984 60% Ronald Reagan* (R) 9,415 59.5% Walter Mondale (D) 6,355 40.1% 59 0.4% 15,829 3 1 0.33%
1980 59% Ronald Reagan (R) 8,810 56.9% Jimmy Carter* (D) 6,052 39.1% 632 [+] 4.1% 15,494 7 6 0.33%
1976 72% Jimmy Carter (D) 8,693 51.0% Gerald Ford* (R) 8,190 48.1% 155 [+] 0.9% 17,038 -2 0 0.36%
1972 73% Richard Nixon* (R) 9,761 60.2% George McGovern (D) 6,440 39.7% 14 [+] 0.1% 16,215 1 -1 0.34%
1968 77% Richard Nixon (R) 7,681 50.4% Hubert Humphrey (D) 5,953 39.0% 1,616 [+] 10.6% 15,250 3 7 0.33%
1964 77% Lyndon Johnson* (D) 9,199 61.3% Barry Goldwater (R) 5,803 38.7% 0 0.0% 15,002 -2 0 0.32%
1960 80% Richard Nixon (R) 7,988 52.0% John Kennedy (D) 7,344 47.9% 15 0.1% 15,347 2 2 0.32%
1956 72% Dwight Eisenhower* (R) 8,439 55.4% Adlai Stevenson (D) 6,778 44.5% 4 0.0% 15,221 -4 -2 0.35%
1952 71% Dwight Eisenhower (R) 8,427 54.6% Adlai Stevenson (D) 6,998 45.3% 13 0.1% 15,438 0 -1 0.34%
1948 62% Thomas Dewey (R) 6,867 49.8% Harry Truman* (D) 6,852 49.7% 62 [+] 0.4% 13,781 1 5 0.35%
1944 60% Thomas Dewey (R) 7,518 54.7% Franklin Roosevelt* (D) 6,199 45.1% 39 0.3% 13,756 7 9 0.34%
1940 74% Wendell Willkie (R) 9,333 54.2% Franklin Roosevelt* (D) 7,802 45.3% 80 0.5% 17,215 6 9 0.41%
1936 76% Franklin Roosevelt* (D) 8,247 52.5% Alf Landon (R) 7,057 44.9% 397 [+] 2.5% 15,701 5 8 0.40%
1932 70% Franklin Roosevelt (D) 8,634 63.3% Herbert Hoover* (R) 4,747 34.8% 266 [+] 1.9% 13,647 -7 -5 0.40%
1928 66% Al Smith (D) 6,251 51.7% Herbert Hoover (R) 5,739 47.5% 103 [+] 0.9% 12,093 -9 -11 0.39%
1924 60% Calvin Coolidge (R) 4,527 41.6% John Davis (D) 3,734 34.3% 2,619 [+] 24.1% 10,880 -17 -12 0.44%
1920 55% Warren Harding (R) 6,180 62.5% James Cox (D) 3,181 32.2% 521 [+] 5.3% 9,882 -5 2 0.47%
1916 63% Charles Evans Hughes (R) 5,517 49.1% Woodrow Wilson* (D) 5,403 48.0% 326 [+] 2.9% 11,246 -4 3 0.51%
1912 36% Woodrow Wilson (D) 3,217 50.4% William Taft* (R) 1,548 24.2% 1,621 [+] 25.4% 6,386 2 1 0.56%
1908 39% William J. Bryan (D) 3,172 49.0% William Taft (R) 3,045 47.0% 256 [+] 4.0% 6,473 -7 -5 0.56%
1904 38% Theodore Roosevelt (R) 3,238 52.2% Alton Parker (D) 2,518 40.6% 451 [+] 7.3% 6,207 -7 -4 0.58%
1900 40% William J. Bryan (D) 3,278 50.7% William McKinley* (R) 3,045 47.1% 146 [+] 2.3% 6,469 -6 -5 0.57%
* incumbent         PSV: percent of state vote

Historical Statewide Election Results for Randolph County, IL

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

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2022 S3 47% Kathy Salvi (R) 7,611 67.2% Tammy Duckworth* (D) 3,527 31.1% 189 [+] 1.7% 11,327 26 0.28%
2022 G 48% Darren Bailey (R) 8,092 70.8% J.B. Pritzker* (D) 2,999 26.2% 342 [+] 3.0% 11,433 28 0.28%
2020 S2 61% Mark Curran (R) 9,741 66.4% Richard Durbin* (D) 4,645 31.7% 285 [+] 1.9% 14,671 28 0.25%
2018 G 49% Bruce Rauner* (R) 5,939 48.8% J.B. Pritzker (D) 4,955 40.7% 1,271 [+] 10.4% 12,165 10 0.27%
2016 S3 55% Mark Kirk* (R) 7,364 52.6% Tammy Duckworth (D) 6,119 43.7% 504 [+] 3.6% 13,987 13 0.25%
2014 S2 43% Jim Oberweis (R) 5,544 49.5% Richard Durbin* (D) 5,235 46.7% 426 [+] 3.8% 11,205 7 0.31%
2014 G 43% Bruce Rauner (R) 6,607 59.4% Pat Quinn* (D) 3,838 34.5% 684 [+] 6.1% 11,129 9 0.31%
2010 S3 42% Mark Kirk (R) 6,168 54.2% Alexi Giannoulias (D) 4,358 38.3% 864 [+] 7.6% 11,390 6 0.31%
2010 G 43% Bill Brady (R) 6,227 53.4% Pat Quinn* (D) 4,607 39.5% 819 [+] 7.0% 11,653 8 0.31%
2008 S2 55% Richard Durbin* (D) 8,937 60.8% Steve Sauerberg (R) 5,251 35.7% 523 [+] 3.6% 14,711 7 0.28%
2006 G 44% Rod Blagojevich* (D) 5,889 50.7% Judy Baar Topinka (R) 4,661 40.2% 1,056 [+] 9.1% 11,606 1 0.33%
2004 S3 54% Barack Obama (D) 9,009 62.5% Alan Keyes (R) 4,961 34.4% 437 [+] 3.0% 14,407 7 0.28%
2002 S2 42% Richard Durbin* (D) 6,727 60.5% Jim Durkin (R) 4,249 38.2% 136 [+] 1.2% 11,112 0 0.32%
2002 G 43% Rod Blagojevich (D) 6,780 59.4% Jim Ryan (R) 4,461 39.1% 169 [+] 1.5% 11,410 -6 0.32%
1998 S3 47% Peter Fitzgerald (R) 7,205 58.4% Carol Moseley-Braun* (D) 4,941 40.1% 190 [+] 1.5% 12,336 8 0.36%
1998 G 48% Glenn Poshard (D) 8,315 66.3% George Ryan (R) 4,187 33.4% 44 [+] 0.4% 12,546 -18 0.37%
1996 S2 55% Richard Durbin (D) 7,597 52.6% Al Salvi (R) 6,467 44.8% 380 [+] 2.6% 14,444 4 0.34%
1994 G 46% Jim Edgar* (R) 7,391 61.0% Dawn Clark Netsch (D) 4,455 36.8% 272 [+] 2.2% 12,118 -3 0.39%
1992 S3 62% Carol Moseley-Braun (D) 9,033 55.8% Richard Williamson (R) 6,569 40.6% 586 [+] 3.6% 16,188 -2 0.33%
1990 S2 55% Paul Simon* (D) 10,363 72.3% Lynn Martin (R) 3,974 27.7% 0 0.0% 14,337 -7 0.44%
1990 G 56% Neil Hartigan (D) 9,374 64.5% Jim Edgar (R) 5,093 35.0% 76 [+] 0.5% 14,543 -16 0.45%
1986 S3 48% Alan Dixon* (D) 8,914 71.4% Judy Koehler (R) 3,487 27.9% 76 [+] 0.6% 12,477 -6 0.40%
1986 G 48% James Thompson* (R) 5,914 46.9% Adlai Stevenson III (Illinois Solidarity) 5,553 44.0% 1,142 [+] 9.1% 12,609 -6 0.40%
1984 S2 61% Paul Simon (D) 9,241 58.1% Charles Percy* (R) 6,549 41.2% 124 [+] 0.8% 15,914 -7 0.33%
1982 G 49% Adlai Stevenson III (D) 6,732 52.2% James Thompson* (R) 6,066 47.1% 91 [+] 0.7% 12,889 -2 0.35%
1980 S3 59% Alan Dixon (D) 8,022 52.2% David O'Neal (R) 7,252 47.1% 108 [+] 0.7% 15,382 5 0.34%
1978 S2 53% Alex Seith (D) 7,355 57.2% Charles Percy* (R) 5,498 42.7% 12 [+] 0.1% 12,865 -11 0.40%
1978 G 53% Michael Bakalis (D) 6,463 50.1% James Thompson* (R) 6,423 49.8% 12 [+] 0.1% 12,898 -9 0.41%
1976 G 70% James Thompson (R) 9,565 57.7% Michael Howlitt (D) 6,989 42.2% 16 [+] 0.1% 16,570 -7 0.36%
1974 S3 59% Adlai Stevenson III* (D) 8,538 62.8% George Burditt (R) 5,048 37.1% 20 [+] 0.1% 13,606 0 0.47%
1972 S2 71% Charles Percy* (R) 9,581 60.8% Roman Pucinski (D) 6,178 39.2% 9 [+] 0.1% 15,768 -1 0.34%
1972 G 73% Daniel Walker (D) 8,793 54.2% Richard Ogilvie* (R) 7,424 45.8% 0 0.0% 16,217 -3 0.35%
1970 S3 67% Adlai Stevenson III (D) 6,952 51.1% Ralph Smith* (R) 6,635 48.8% 17 [+] 0.1% 13,604 7 0.38%
1968 S3 72% Everett Dirksen* (R) 8,447 59.5% William Clark (D) 5,732 40.4% 8 [+] 0.1% 14,187 7 0.32%
1968 G 73% Richard Ogilvie (R) 7,709 53.5% Samuel Shapiro* (D) 6,682 46.4% 8 [+] 0.1% 14,399 2 0.32%
1966 S2 70% Charles Percy (R) 7,489 54.8% Paul Douglas* (D) 6,180 45.2% 0 0.0% 13,669 0 0.36%
1964 G 76% Otto Kerner* (D) 7,777 52.5% Charles Percy (R) 7,025 47.5% 0 0.0% 14,802 -1 0.32%
1962 S3 67% Everett Dirksen* (R) 6,578 51.3% Sidney Yates (D) 6,243 48.7% 0 0.0% 12,821 -2 0.35%
1960 S2 76% Paul Douglas* (D) 8,143 56.0% Samuel Witwer (R) 6,381 43.9% 10 [+] 0.1% 14,534 -1 0.31%
1960 G 78% Otto Kerner (D) 7,718 51.9% William Stratton* (R) 7,155 48.1% 11 [+] 0.1% 14,884 4 0.32%
*: 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 Randolph County, IL

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

DateDistrictWinnerRunner-Up OtherTotal Votes
2024-11-05 IL12Mike Bost* (R) 11,218 78.8% Brian Roberts (D) 3,013 21.2% 0 0.0% 14,231
County Total for 2024-11-05:   14,231
2022-11-08 IL12Mike Bost* (R) 8,543 75.0% Chip Markel (D) 2,855 25.0% 0 0.0% 11,398
County Total for 2022-11-08:   11,398
2020-11-03 IL12Mike Bost* (R) 11,356 77.3% Raymond Lenzi (D) 3,336 22.7% 0 0.0% 14,692
County Total for 2020-11-03:   14,692
2018-11-06 IL12Mike Bost* (R) 7,672 62.5% Brendan Kelly (D) 4,317 35.2% 283 2.3% 12,272
County Total for 2018-11-06:   12,272
2016-11-08 IL12Mike Bost* (R) 9,307 66.0% C.J. Baricevic (D) 4,375 31.0% 429 3.0% 14,111
County Total for 2016-11-08:   14,111
2014-11-04 IL12Mike Bost (R) 6,539 58.1% William Enyart* (D) 4,190 37.2% 533 4.7% 11,262
County Total for 2014-11-04:   11,262
2012-11-06 IL12Jason Plummer (R) 7,084 49.8% William Enyart (D) 6,533 45.9% 611 4.3% 14,228
County Total for 2012-11-06:   14,228
2010-11-02 IL12Jerry Costello* (D) 6,955 59.8% Teri Davis-Newman (R) 4,319 37.1% 352 3.0% 11,626
County Total for 2010-11-02:   11,626
2008-11-04 IL12Jerry Costello* (D) 10,858 73.0% Timmy Richardson (R) 3,707 24.9% 319 2.1% 14,884
County Total for 2008-11-04:   14,884
2006-11-07 IL12Jerry Costello* (D) 10,065 100.0% 0 0.0% 10,065
County Total for 2006-11-07:   10,065
2004-11-02 IL12Jerry Costello* (D) 9,530 63.4% Erin Zweigert (R) 5,389 35.8% 124 0.8% 15,043
County Total for 2004-11-02:   15,043
2002-11-05 IL12Jerry Costello* (D) 8,408 72.5% David Sadler (R) 3,196 27.5% 0 0.0% 11,604
County Total for 2002-11-05:   11,604
2000-11-07 IL12Jerry Costello* (D) 11,502 100.0% 0 0.0% 11,502
County Total for 2000-11-07:   11,502
1998-11-03 IL12Jerry Costello* (D) 7,702 61.2% William Price (R) 4,876 38.8% 0 0.0% 12,578
County Total for 1998-11-03:   12,578
1996-11-05 IL12Jerry Costello* (D) 10,021 70.4% Shapley Hunter (R) 4,042 28.4% 163 1.1% 14,226
County Total for 1996-11-05:   14,226
1994-11-08 IL12Jerry Costello* (D) 7,600 61.7% Jan Morris (R) 4,711 38.3% 0 0.0% 12,311
County Total for 1994-11-08:   12,311
1992-11-03 IL12Jerry Costello* (D) 10,989 68.4% Mike Starr (R) 5,085 31.6% 0 0.0% 16,074
County Total for 1992-11-03:   16,074
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Randolph County, IL

Party registration is not used in this state, however as of 2022 registrations in Randolph County, IL were estimated to be 35% Republican and 27% Democrat.

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2024 20,235 0 0.0% 0 0.0% 20,235 100.0% n/a n/a 84%
2022 19,703 0 0.0% 0 0.0% 19,703 100.0% n/a n/a 82%
2020 20,876 0 0.0% 0 0.0% 20,876 100.0% n/a n/a 87%
2018 21,609 0 0.0% 0 0.0% 21,609 100.0% n/a n/a 88%
2016 21,651 0 0.0% 0 0.0% 21,651 100.0% n/a n/a 86%
2012 21,863 0 0.0% 0 0.0% 21,863 100.0% n/a n/a 83%
2010 21,130 0 0.0% 0 0.0% 21,130 100.0% n/a n/a 79%
2008 24,624 0 0.0% 0 0.0% 24,624 100.0% n/a n/a 92%
2006 23,607 0 0.0% 0 0.0% 23,607 100.0% n/a n/a 89%
2004 25,571 0 0.0% 0 0.0% 25,571 100.0% n/a n/a 96%
2000 24,413 0 0.0% 0 0.0% 24,413 100.0% n/a n/a 93%
1994 21,805 0 0.0% 0 0.0% 21,805 100.0% n/a n/a 83%
1986 22,528 0 0.0% 0 0.0% 22,528 100.0% n/a n/a 86%
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.