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Rock County, WI


Metropolitan Statistical Area: Janesville-Beloit, WI
Designated Market Area: Madison, WI
American Communities Project County Type (2023): Rural Middle America

Places in Rock County, WI     [Sort places by name]

 

Tracts in Rock County, WI

   



Click here to view demographic data for Rock County, WI

2022 population: 164,060   ( 3,729 from 2010 , 368 from 2020)
Land area: 718.2 square miles
Population density: 228.4 persons per square mile

2022 Census data
White:133,258 81.23% 1.7%
Black:7,9804.86% 2.8%
Indian:4250.26% 11.0%
Asian:2,1781.33% 33.0%
2+ races:4,1222.51% 48.9%
Hispanic:16,0979.81% 32.8%
Total non-White:30,80218.77% 24.2%

2020-2022 ComponentsNumberRate
Births:4,253 13.0
Deaths:4,15212.7
Net Migration: 1050.3
Net Immigration: 920.3
Change in White population:-2,268 -1.4
Change in Non-White pop.:5,997 3.7



Historical Presidential Election Results for Rock County, WI



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

YearTurnout WinnerRunner-Up OtherTotal Votes Diff
(St)
Diff
(US)
PSV
2020 68% Joe Biden (D) 46,658 54.7% Donald Trump* (R) 37,138 43.5% 1,564 [+] 1.8% 85,360 -5 -3 2.59%
2016 62% Hillary Clinton (D) 39,339 51.7% Donald Trump (R) 31,493 41.4% 5,242 [+] 6.9% 76,074 -6 -5 2.56%
2012 67% Barack Obama* (D) 49,219 61.0% Mitt Romney (R) 30,517 37.8% 954 [+] 1.2% 80,690 -8 -9 2.63%
2008 67% Barack Obama (D) 50,529 63.8% John McCain (R) 27,364 34.6% 1,276 [+] 1.6% 79,169 -8 -11 2.65%
2004 70% John Kerry (D) 46,598 57.9% George W. Bush* (R) 33,151 41.2% 730 [+] 0.9% 80,479 -8 -10 2.69%
2000 63% Albert Gore, Jr. (D) 40,472 57.5% George W. Bush (R) 27,467 39.0% 2,465 [+] 3.5% 70,404 -9 -9 2.71%
1996 56% Bill Clinton* (D) 32,450 53.8% Robert Dole (R) 20,096 33.3% 7,774 [+] 12.9% 60,320 -5 -7 2.75%
1992 66% Bill Clinton (D) 31,154 45.1% George Bush* (R) 21,942 31.8% 15,929 [+] 23.1% 69,025 -5 -6 2.73%
1988 58% Michael Dukakis (D) 29,576 50.8% George Bush (R) 28,178 48.4% 434 [+] 0.7% 58,188 1 -5 2.66%
1984 60% Ronald Reagan* (R) 32,491 54.8% Walter Mondale (D) 26,433 44.5% 410 0.7% 59,334 1 -4 2.68%
1980 63% Ronald Reagan (R) 30,960 50.6% Jimmy Carter* (D) 24,740 40.4% 5,482 [+] 9.0% 61,182 3 0 2.69%
1976 66% Gerald Ford* (R) 28,325 49.0% Jimmy Carter (D) 28,048 48.6% 1,389 [+] 2.4% 57,762 1 1 2.75%
1972 61% Richard Nixon* (R) 30,361 58.0% George McGovern (D) 21,033 40.2% 925 [+] 1.8% 52,319 5 -3 2.82%
1968 66% Richard Nixon (R) 25,229 50.9% Hubert Humphrey (D) 20,567 41.5% 3,755 [+] 7.6% 49,551 3 8 2.93%
1964 69% Lyndon Johnson* (D) 28,257 58.0% Barry Goldwater (R) 20,372 41.8% 55 0.1% 48,684 4 3 2.88%
1960 74% Richard Nixon (R) 29,675 60.6% John Kennedy (D) 19,194 39.2% 76 0.2% 48,945 9 11 2.83%
1956 65% Dwight Eisenhower* (R) 28,980 67.4% Adlai Stevenson (D) 13,834 32.2% 173 0.4% 42,987 6 10 2.77%
1952 71% Dwight Eisenhower (R) 27,837 64.6% Adlai Stevenson (D) 15,183 35.3% 45 0.1% 43,065 4 9 2.68%
1948 60% Thomas Dewey (R) 17,068 50.7% Harry Truman* (D) 16,150 47.9% 474 [+] 1.4% 33,692 4 6 2.64%
1944 67% Thomas Dewey (R) 18,477 52.2% Franklin Roosevelt* (D) 16,766 47.4% 133 0.4% 35,376 2 6 2.64%
1940 76% Wendell Willkie (R) 20,141 53.1% Franklin Roosevelt* (D) 17,543 46.3% 214 0.6% 37,898 5 8 2.70%
1936 74% Franklin Roosevelt* (D) 17,991 53.3% Alf Landon (R) 14,693 43.6% 1,045 [+] 3.1% 33,729 13 7 2.68%
1932 68% Herbert Hoover* (R) 16,825 56.1% Franklin Roosevelt (D) 12,612 42.0% 571 [+] 1.9% 30,008 25 16 2.69%
1928 74% Herbert Hoover (R) 21,497 70.8% Al Smith (D) 8,726 28.7% 161 [+] 0.5% 30,384 17 13 2.99%
1924 62% Calvin Coolidge (R) 14,815 60.9% Robert LaFollette (Prog) 7,923 32.6% 1,582 [+] 6.5% 24,320 24 7 2.89%
1920 52% Warren Harding (R) 16,152 83.5% James Cox (D) 2,447 12.7% 738 [+] 3.8% 19,337 12 23 2.76%
1916 34% Charles Evans Hughes (R) 7,011 61.1% Woodrow Wilson* (D) 4,015 35.0% 451 [+] 3.9% 11,477 12 15 2.57%
1912 31% William Taft* (R) 4,276 43.2% Woodrow Wilson (D) 3,032 30.6% 2,589 [+] 26.2% 9,897 11 20 2.47%
1908 41% William Taft (R) 7,839 66.8% William J. Bryan (D) 3,227 27.5% 668 [+] 5.7% 11,734 12 15 2.58%
1904 41% Theodore Roosevelt (R) 7,972 71.6% Alton Parker (D) 2,348 21.1% 807 [+] 7.3% 11,127 8 15 2.51%
1900 44% William McKinley* (R) 8,249 70.0% William J. Bryan (D) 3,094 26.2% 447 [+] 3.8% 11,790 10 18 2.66%
* incumbent         PSV: percent of state vote



2020 President, Rock County, WI
CandidateVotesPct
Joe Biden (D) 46,658 54.7%
Donald Trump* (R) 37,138 43.5%
Jo Jorgensen (Lbt) 1,094 1.3%
Other 470 0.6%
TOTAL 85,360
Turnout: 68% Diff (St): -5 Diff (US): -3


2016 President, Rock County, WI
CandidateVotesPct
Hillary Clinton (D) 39,339 51.7%
Donald Trump (R) 31,493 41.4%
Gary Johnson (Lbt) 2,859 3.8%
Jill Stein (Grn) 885 1.2%
Evan McMullin (I) 168 0.2%
Other 1,330 1.7%
TOTAL 76,074
Turnout: 62% Diff (St): -6 Diff (US): -5


2012 President, Rock County, WI
CandidateVotesPct
Barack Obama* (D) 49,219 61.0%
Mitt Romney (R) 30,517 37.8%
Gary Johnson (Lbt) 470 0.6%
Other 484 0.6%
TOTAL 80,690
Turnout: 67% Diff (St): -8 Diff (US): -9


2008 President, Rock County, WI
CandidateVotesPct
Barack Obama (D) 50,529 63.8%
John McCain (R) 27,364 34.6%
Ralph Nader (I) 529 0.7%
Bob Barr (Lbt) 187 0.2%
Other 560 0.7%
TOTAL 79,169
Turnout: 67% Diff (St): -8 Diff (US): -11


2004 President, Rock County, WI
CandidateVotesPct
George W. Bush* (R) 33,151 41.2%
John Kerry (D) 46,598 57.9%
Ralph Nader (I) 409 0.5%
Other 321 0.4%
TOTAL 80,479
Turnout: 70% Diff (St): -8 Diff (US): -10


2000 President, Rock County, WI
CandidateVotesPct
George W. Bush (R) 27,467 39.0%
Albert Gore, Jr. (D) 40,472 57.5%
Ralph Nader (Grn) 1,980 2.8%
Pat Buchanan (Ref) 147 0.2%
Other 338 0.5%
TOTAL 70,404
Turnout: 63% Diff (St): -9 Diff (US): -9


1996 President, Rock County, WI
CandidateVotesPct
Bill Clinton* (D) 32,450 53.8%
Robert Dole (R) 20,096 33.3%
Ross Perot (Ref) 6,800 11.3%
Ralph Nader (Grn) 518 0.9%
Harry Browne (Lbt) 212 0.4%
Other 244 0.4%
TOTAL 60,320
Turnout: 56% Diff (St): -5 Diff (US): -7


1992 President, Rock County, WI
CandidateVotesPct
Bill Clinton (D) 31,154 45.1%
George Bush* (R) 21,942 31.8%
Ross Perot (I) 15,700 22.7%
Other 229 0.3%
TOTAL 69,025
Turnout: 66% Diff (St): -5 Diff (US): -6


1988 President, Rock County, WI
CandidateVotesPct
George Bush (R) 28,178 48.4%
Michael Dukakis (D) 29,576 50.8%
Ron Paul (Lbt) 158 0.3%
Other 276 0.5%
TOTAL 58,188
Turnout: 58% Diff (St): 1 Diff (US): -5


1984 President, Rock County, WI
CandidateVotesPct
Ronald Reagan* (R) 32,491 54.8%
Walter Mondale (D) 26,433 44.5%
Other 410 0.7%
TOTAL 59,334
Turnout: 60% Diff (St): 1 Diff (US): -4


1980 President, Rock County, WI
CandidateVotesPct
Ronald Reagan (R) 30,960 50.6%
Jimmy Carter* (D) 24,740 40.4%
John Anderson (I) 4,408 7.2%
Edward Clark (Lbt) 888 1.5%
Other 186 0.3%
TOTAL 61,182
Turnout: 63% Diff (St): 3 Diff (US): 0


1976 President, Rock County, WI
CandidateVotesPct
Jimmy Carter (D) 28,048 48.6%
Gerald Ford* (R) 28,325 49.0%
Eugene McCarthy (I) 933 1.6%
Other 456 0.8%
TOTAL 57,762
Turnout: 66% Diff (St): 1 Diff (US): 1


1972 President, Rock County, WI
CandidateVotesPct
Richard Nixon* (R) 30,361 58.0%
George McGovern (D) 21,033 40.2%
John Schmitz (Amer) 823 1.6%
Other 102 0.2%
TOTAL 52,319
Turnout: 61% Diff (St): 5 Diff (US): -3


1968 President, Rock County, WI
CandidateVotesPct
Richard Nixon (R) 25,229 50.9%
Hubert Humphrey (D) 20,567 41.5%
George Wallace (AIP) 3,655 7.4%
Other 100 0.2%
TOTAL 49,551
Turnout: 66% Diff (St): 3 Diff (US): 8


1964 President, Rock County, WI
CandidateVotesPct
Lyndon Johnson* (D) 28,257 58.0%
Barry Goldwater (R) 20,372 41.8%
Other 55 0.1%
TOTAL 48,684
Turnout: 69% Diff (St): 4 Diff (US): 3


1960 President, Rock County, WI
CandidateVotesPct
John Kennedy (D) 19,194 39.2%
Richard Nixon (R) 29,675 60.6%
Other 76 0.2%
TOTAL 48,945
Turnout: 74% Diff (St): 9 Diff (US): 11


1956 President, Rock County, WI
CandidateVotesPct
Dwight Eisenhower* (R) 28,980 67.4%
Adlai Stevenson (D) 13,834 32.2%
Other 173 0.4%
TOTAL 42,987
Turnout: 65% Diff (St): 6 Diff (US): 10


1952 President, Rock County, WI
CandidateVotesPct
Dwight Eisenhower (R) 27,837 64.6%
Adlai Stevenson (D) 15,183 35.3%
Other 45 0.1%
TOTAL 43,065
Turnout: 71% Diff (St): 4 Diff (US): 9


1948 President, Rock County, WI
CandidateVotesPct
Harry Truman* (D) 16,150 47.9%
Thomas Dewey (R) 17,068 50.7%
Henry Wallace (Prog) 297 0.9%
Other 177 0.5%
TOTAL 33,692
Turnout: 60% Diff (St): 4 Diff (US): 6


1944 President, Rock County, WI
CandidateVotesPct
Franklin Roosevelt* (D) 16,766 47.4%
Thomas Dewey (R) 18,477 52.2%
Other 133 0.4%
TOTAL 35,376
Turnout: 67% Diff (St): 2 Diff (US): 6


1940 President, Rock County, WI
CandidateVotesPct
Franklin Roosevelt* (D) 17,543 46.3%
Wendell Willkie (R) 20,141 53.1%
Other 214 0.6%
TOTAL 37,898
Turnout: 76% Diff (St): 5 Diff (US): 8


1936 President, Rock County, WI
CandidateVotesPct
Franklin Roosevelt* (D) 17,991 53.3%
Alf Landon (R) 14,693 43.6%
William Lemke (Union) 907 2.7%
Norman Thomas (Soc) 72 0.2%
Other 66 0.2%
TOTAL 33,729
Turnout: 74% Diff (St): 13 Diff (US): 7


1932 President, Rock County, WI
CandidateVotesPct
Franklin Roosevelt (D) 12,612 42.0%
Herbert Hoover* (R) 16,825 56.1%
Norman Thomas (Soc) 472 1.6%
Other 99 0.3%
TOTAL 30,008
Turnout: 68% Diff (St): 25 Diff (US): 16


1928 President, Rock County, WI
CandidateVotesPct
Herbert Hoover (R) 21,497 70.8%
Al Smith (D) 8,726 28.7%
Norman Thomas (Soc) 81 0.3%
Other 80 0.3%
TOTAL 30,384
Turnout: 74% Diff (St): 17 Diff (US): 13


1924 President, Rock County, WI
CandidateVotesPct
Calvin Coolidge (R) 14,815 60.9%
John Davis (D) 1,453 6.0%
Robert LaFollette (Prog) 7,923 32.6%
Other 129 0.5%
TOTAL 24,320
Turnout: 62% Diff (St): 24 Diff (US): 7


1920 President, Rock County, WI
CandidateVotesPct
Warren Harding (R) 16,152 83.5%
James Cox (D) 2,447 12.7%
Eugene Debs (Soc) 421 2.2%
Aaron Watkins (Proh) 317 1.6%
TOTAL 19,337
Turnout: 52% Diff (St): 12 Diff (US): 23


1916 President, Rock County, WI
CandidateVotesPct
Woodrow Wilson* (D) 4,015 35.0%
Charles Evans Hughes (R) 7,011 61.1%
Allan Benson (Soc) 224 2.0%
James Hanly (Proh) 227 2.0%
TOTAL 11,477
Turnout: 34% Diff (St): 12 Diff (US): 15


1912 President, Rock County, WI
CandidateVotesPct
Woodrow Wilson (D) 3,032 30.6%
Theodore Roosevelt (Prog) 2,004 20.2%
William Taft* (R) 4,276 43.2%
Eugene Debs (Soc) 261 2.6%
Eugene Chafin (Proh) 313 3.2%
Other 11 0.1%
TOTAL 9,897
Turnout: 31% Diff (St): 11 Diff (US): 20


1908 President, Rock County, WI
CandidateVotesPct
William Taft (R) 7,839 66.8%
William J. Bryan (D) 3,227 27.5%
Eugene Debs (Soc) 265 2.3%
Eugene Chafin (Proh) 391 3.3%
Other 12 0.1%
TOTAL 11,734
Turnout: 41% Diff (St): 12 Diff (US): 15


1904 President, Rock County, WI
CandidateVotesPct
Theodore Roosevelt (R) 7,972 71.6%
Alton Parker (D) 2,348 21.1%
Other 807 7.3%
TOTAL 11,127
Turnout: 41% Diff (St): 8 Diff (US): 15


1900 President, Rock County, WI
CandidateVotesPct
William McKinley* (R) 8,249 70.0%
William J. Bryan (D) 3,094 26.2%
John Woolley (Proh) 403 3.4%
Eugene Debs (Soc) 36 0.3%
Other 8 0.1%
TOTAL 11,790
Turnout: 44% Diff (St): 10 Diff (US): 18
* incumbent

Historical Statewide Election Results for Rock County, WI

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

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2022 S3 51% Mandela Barnes (D) 36,024 55.5% Ron Johnson* (R) 28,758 44.3% 160 [+] 0.2% 64,942 -6 2.45%
2022 G 52% Tony Evers* (D) 37,755 57.8% Tim Michels (R) 26,722 40.9% 799 [+] 1.2% 65,276 -7 2.46%
2018 S1 55% Tammy Baldwin* (D) 42,616 62.7% Leah Vukmir (R) 25,322 37.2% 73 [+] 0.1% 68,011 -7 2.56%
2018 G 55% Tony Evers (D) 39,680 58.0% Scott Walker* (R) 26,904 39.4% 1,782 [+] 2.6% 68,366 -9 2.56%
2016 S3 61% Russ Feingold (D) 42,437 56.3% Ron Johnson* (R) 30,487 40.5% 2,429 [+] 3.2% 75,353 -10 2.56%
2014 G 48% Mary Burke (D) 32,523 55.6% Scott Walker* (R) 24,993 42.8% 932 [+] 1.6% 58,448 -10 2.42%
2012 S1 65% Tammy Baldwin (D) 46,892 59.2% Tommy Thompson (R) 30,010 37.9% 2,341 [+] 3.0% 79,243 -8 2.63%
2012 G 52% Tom Barrett (D) 35,316 55.7% Scott Walker* (R) 27,498 43.4% 544 [+] 0.9% 63,358 -10 2.52%
2010 S3 44% Russ Feingold* (D) 28,361 54.1% Ron Johnson (R) 23,181 44.2% 873 [+] 1.7% 52,415 -8 2.41%
2010 G 43% Tom Barrett (D) 27,424 52.5% Scott Walker (R) 23,813 45.6% 976 [+] 1.9% 52,213 -7 2.42%
2006 S1 47% Herb Kohl* (D) 40,727 74.2% Robert Lorge (R) 12,712 23.2% 1,440 [+] 2.6% 54,879 -6 2.57%
2006 G 47% Jim Doyle* (D) 33,774 61.3% Mark Green (R) 20,156 36.6% 1,199 [+] 2.2% 55,129 -9 2.55%
2004 S3 69% Russ Feingold* (D) 51,336 64.5% Tim Michels (R) 27,699 34.8% 503 [+] 0.6% 79,538 -9 2.70%
2002 G 44% Jim Doyle (D) 26,648 53.0% Scott McCallum* (R) 14,929 29.7% 8,692 [+] 17.3% 50,269 -12 2.83%
2000 S1 62% Herb Kohl* (D) 48,149 69.4% John Gillespie (R) 20,232 29.2% 1,014 [+] 1.5% 69,395 -8 2.73%
1998 S3 45% Russ Feingold* (D) 28,942 58.5% Mark Neumann (R) 20,125 40.7% 381 [+] 0.8% 49,448 -8 2.81%
1998 G 45% Tommy Thompson* (R) 27,485 55.9% Ed Garvey (D) 21,109 42.9% 613 [+] 1.2% 49,207 -4 2.80%
1994 S1 41% Herb Kohl* (D) 29,322 67.4% Robert Welch (R) 13,846 31.8% 349 [+] 0.8% 43,517 -9 2.78%
1994 G 41% Tommy Thompson* (R) 27,905 64.0% Chuck Chavala (D) 15,028 34.5% 649 [+] 1.5% 43,582 -3 2.79%
1992 S3 63% Russ Feingold (D) 38,067 57.8% Bob Kasten* (R) 26,739 40.6% 1,039 [+] 1.6% 65,845 -5 2.68%
1990 G 36% Tommy Thompson* (R) 19,979 55.1% Thomas Loftus (D) 16,231 44.8% 23 [+] 0.1% 36,233 -3 2.63%
1988 S1 57% Herb Kohl (D) 28,895 50.7% Susan Engeleiter (R) 27,796 48.7% 330 [+] 0.6% 57,021 1 2.63%
1986 S3 38% Bob Kasten* (R) 19,839 52.5% Ed Garvey (D) 17,530 46.4% 424 [+] 1.1% 37,793 2 2.55%
1986 G 39% Tommy Thompson (R) 19,459 50.0% Anthony Earl* (D) 19,005 48.9% 420 [+] 1.1% 38,884 -3 2.55%
1982 S1 43% William Proxmire* (D) 28,147 67.6% Scott McCallum (R) 12,795 30.7% 694 [+] 1.7% 41,636 -3 2.69%
1982 G 43% Anthony Earl (D) 26,130 62.1% Terry Kohler (R) 15,432 36.7% 515 [+] 1.2% 42,077 -5 2.66%
1980 S3 61% Bob Kasten (R) 29,008 49.5% Gaylord Nelson* (D) 28,457 48.6% 1,120 [+] 1.9% 58,585 -1 2.66%
1978 G 41% Lee Dreyfus (R) 18,834 51.2% Martin Schreiber* (D) 17,647 48.0% 273 [+] 0.7% 36,754 -3 2.45%
1976 S1 58% William Proxmire* (D) 35,389 69.4% Stanley York (R) 15,303 30.0% 269 [+] 0.5% 50,961 3 2.63%
1974 S3 38% Gaylord Nelson* (D) 21,063 64.3% Tom Petri (R) 11,324 34.5% 394 [+] 1.2% 32,781 -1 2.73%
1974 G 37% Patrick Lucey* (D) 17,077 52.9% William Dyke (R) 14,415 44.7% 777 [+] 2.4% 32,269 3 2.73%
1970 S1 50% William Proxmire* (D) 27,425 69.4% John Erickson (R) 11,880 30.1% 190 [+] 0.5% 39,495 2 2.95%
1970 G 50% Patrick Lucey (D) 20,358 51.8% Jack Olson (R) 18,689 47.5% 275 [+] 0.7% 39,322 3 2.93%
1968 S3 65% Gaylord Nelson* (D) 26,358 54.6% Jerris Leonard (R) 21,940 45.4% 2 [+] 0.0% 48,300 7 2.92%
1968 G 66% Warren Knowles* (R) 28,190 57.1% Bronson LaFollette (D) 21,125 42.8% 89 [+] 0.2% 49,404 4 2.92%
1966 G 47% Warren Knowles* (R) 20,419 60.2% Patrick Lucey (D) 13,418 39.5% 106 [+] 0.3% 33,943 7 2.90%
1964 S1 68% William Proxmire* (D) 24,781 51.7% Wilbur Renk (R) 23,140 48.3% 27 [+] 0.1% 47,948 2 2.86%
1964 G 69% Warren Knowles (R) 27,073 55.8% John Reynolds* (D) 21,454 44.2% 0 0.0% 48,527 5 2.86%
1962 S3 48% Alexander Wiley* (R) 18,586 56.7% Gaylord Nelson (D) 14,114 43.1% 55 [+] 0.2% 32,755 10 2.60%
1962 G 48% Philip Kuehn (R) 19,098 58.0% John Reynolds (D) 13,807 41.9% 39 [+] 0.1% 32,944 9 2.60%
1960 G 74% Philip Kuehn (R) 27,911 57.2% Gaylord Nelson* (D) 20,890 42.8% 0 0.0% 48,801 9 2.82%
*: 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 Rock County, WI

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

DateDistrictWinnerRunner-Up OtherTotal Votes
2022-11-08 WI01Ann Roe (D) 25,678 54.1% Bryan Steil* (R) 21,410 45.1% 414 0.9% 47,502
2022-11-08 WI02Mark Pocan* (D) 9,098 52.9% Erik Olsen (R) 7,679 44.6% 435 2.5% 17,212
County Total for 2022-11-08:   64,714
2020-11-03 WI01Roger Polack (D) 21,871 51.2% Bryan Steil* (R) 20,845 48.8% 33 0.1% 42,749
2020-11-03 WI02Mark Pocan* (D) 22,604 56.6% Peter Theron (R) 17,296 43.3% 42 0.1% 39,942
County Total for 2020-11-03:   82,691
2018-11-06 WI01Randy Bryce (D) 19,256 55.4% Bryan Steil (R) 14,525 41.8% 991 2.8% 34,772
2018-11-06 WI02Mark Pocan* (D) 23,574 95.5% 1,113 4.5% 24,687
County Total for 2018-11-06:   59,459
2016-11-08 WI01Paul Ryan* (R) 21,879 56.6% Ryan Solen (D) 14,546 37.7% 2,203 5.7% 38,628
2016-11-08 WI02Mark Pocan* (D) 20,758 59.1% Peter Theron (R) 14,316 40.8% 36 0.1% 35,110
County Total for 2016-11-08:   73,738
2014-11-04 WI01Paul Ryan* (R) 15,374 50.5% Rob Zerban (D) 15,078 49.5% 0 0.0% 30,452
2014-11-04 WI02Mark Pocan* (D) 16,199 60.0% Peter Theron (R) 10,797 40.0% 4 0.0% 27,000
County Total for 2014-11-04:   57,452
2012-11-06 WI01Rob Zerban (D) 20,928 51.5% Paul Ryan* (R) 18,888 46.4% 856 2.1% 40,672
2012-11-06 WI02Mark Pocan (D) 22,401 61.3% Chad Lee (R) 13,647 37.4% 482 1.3% 36,530
County Total for 2012-11-06:   77,202
2010-11-02 WI01Paul Ryan* (R) 18,069 63.7% John Heckenlively (D) 9,817 34.6% 502 1.8% 28,388
2010-11-02 WI02Tammy Baldwin* (D) 12,553 53.2% Chad Lee (R) 11,046 46.8% 7 0.0% 23,606
County Total for 2010-11-02:   51,994
2008-11-04 WI01Paul Ryan* (R) 24,791 60.4% Marge Krupp (D) 15,731 38.3% 534 1.3% 41,056
2008-11-04 WI02Tammy Baldwin* (D) 24,792 69.3% Peter Theron (R) 10,990 30.7% 17 0.0% 35,799
County Total for 2008-11-04:   76,855
2006-11-07 WI01Paul Ryan* (R) 19,304 64.2% Jeffrey Thomas (D) 10,648 35.4% 136 0.5% 30,088
2006-11-07 WI02Tammy Baldwin* (D) 14,400 59.2% Dave Magnum (R) 9,901 40.7% 23 0.1% 24,324
County Total for 2006-11-07:   54,412
2004-11-02 WI01Paul Ryan* (R) 26,965 63.9% Jeffrey Thomas (D) 12,833 30.4% 2,406 5.7% 42,204
2004-11-02 WI02Tammy Baldwin* (D) 22,204 60.8% Dave Magnum (R) 14,248 39.0% 46 0.1% 36,498
County Total for 2004-11-02:   78,702
2002-11-05 WI01Paul Ryan* (R) 18,386 68.9% Jeffrey Thomas (D) 7,259 27.2% 1,042 3.9% 26,687
2002-11-05 WI02Tammy Baldwin* (D) 13,969 62.3% Ron Greer (R) 8,446 37.7% 8 0.0% 22,423
County Total for 2002-11-05:   49,110
2000-11-07 WI01Paul Ryan* (R) 43,832 63.9% Jeffrey Thomas (D) 24,526 35.8% 195 0.3% 68,553
County Total for 2000-11-07:   68,553
1998-11-03 WI01Paul Ryan (R) 25,309 52.0% Lydia Spottswood (D) 23,291 47.8% 105 0.2% 48,705
County Total for 1998-11-03:   48,705
1996-11-05 WI01Lydia Spottswood (D) 32,053 54.0% Mark Neumann* (R) 27,355 46.0% 0 0.0% 59,408
County Total for 1996-11-05:   59,408
1994-11-08 WI01Peter Barca* (D) 23,985 55.3% Mark Neumann (R) 18,740 43.2% 624 1.4% 43,349
County Total for 1994-11-08:   43,349
1993-05-04 sp WI01Peter Barca (D) 15,432 51.9% Mark Neumann (R) 14,055 47.3% 230 0.8% 29,717
County Total for 1993-05-04:   29,717
1992-11-03 WI01Les Aspin* (D) 41,132 62.0% Mark Neumann (R) 22,854 34.5% 2,308 3.5% 66,294
County Total for 1992-11-03:   66,294
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Rock County, WI

Party registration is not used in this state, however as of 2022 registrations in Rock County, WI were estimated to be 31% Republican and 40% Democrat.

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2023 90,099 0 0.0% 0 0.0% 90,099 100.0% n/a n/a 71%
2022 93,484 0 0.0% 0 0.0% 93,484 100.0% n/a n/a 74%
2020 97,177 0 0.0% 0 0.0% 97,177 100.0% n/a n/a 77%
2018 83,053 0 0.0% 0 0.0% 83,053 100.0% n/a n/a 66%
2016 92,058 0 0.0% 0 0.0% 92,058 100.0% n/a n/a 74%
2014 90,679 0 0.0% 0 0.0% 90,679 100.0% n/a n/a 74%
2012 93,224 0 0.0% 0 0.0% 93,224 100.0% n/a n/a 77%
2010 88,241 0 0.0% 0 0.0% 88,241 100.0% n/a n/a 73%
2008 94,589 0 0.0% 0 0.0% 94,589 100.0% n/a n/a 80%
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.