RightDataUSA

Johnson County, IA


Metropolitan Statistical Area: Iowa City, IA
Designated Market Area: Cedar Rapids-Waterloo-Dubuque, IA
USDA County Type (2015): Government
American Communities Project County Type (2023): College Towns

Places in Johnson County, IA     [Sort places by name]

 

Tracts in Johnson County, IA

   



Click here to view demographic data for Johnson County, IA

2022 population: 156,420   ( 25,538 from 2010 , 3,559 from 2020)
Land area: 613.0 square miles
Population density: 255.2 persons per square mile

2022 Census data
White:119,629 76.48% 10.0%
Black:12,9748.29% 110.5%
Indian:3100.20% 37.2%
Asian:10,0056.40% 46.7%
2+ races:3,9432.52% 59.3%
Hispanic:9,5596.11% 54.2%
Total non-White:36,79123.52% 66.4%

2020-2022 ComponentsNumberRate
Births:3,679 12.0
Deaths:1,9576.4
Net Migration: -237-0.8
Net Immigration: 1,9966.5
Change in White population:10,862 8.3
Change in Non-White pop.:14,676 11.2



Historical Presidential Election Results for Johnson County, IA

Recent Trends
VotesΔ MarginSwing %
2020 vs. 2016 R +1,881 D +7,096 D + 3.2%
D +8,977
2020 vs. 2012 R -773 D +9,284 D + 7.9%
D +8,511
2020 vs. 2008 R +2,193 D +5,957 D + 1.9%
D +8,150
2016 vs. 2008 R +312 R +1,139 R + 1.3%
D -827
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
2020 67% Joe Biden (D) 59,177 70.6% Donald Trump* (R) 22,925 27.3% 1,749 [+] 2.1% 83,851 -26 -19 4.96%
2016 66% Hillary Clinton (D) 50,200 65.2% Donald Trump (R) 21,044 27.4% 5,696 [+] 7.4% 76,940 -24 -19 4.91%
2012 70% Barack Obama* (D) 50,666 66.7% Mitt Romney (R) 23,698 31.2% 1,613 [+] 2.1% 75,977 -15 -16 4.80%
2008 72% Barack Obama (D) 51,027 69.9% John McCain (R) 20,732 28.4% 1,230 [+] 1.7% 72,989 -16 -17 4.75%
2004 69% John Kerry (D) 41,847 64.0% George W. Bush* (R) 22,715 34.7% 811 [+] 1.2% 65,373 -15 -16 4.34%
2000 59% Albert Gore, Jr. (D) 31,174 59.1% George W. Bush (R) 17,899 33.9% 3,696 [+] 7.0% 52,769 -14 -14 4.01%
1996 54% Bill Clinton* (D) 27,888 61.0% Robert Dole (R) 13,402 29.3% 4,442 [+] 9.7% 45,732 -11 -11 3.71%
1992 65% Bill Clinton (D) 28,656 55.3% George Bush* (R) 14,041 27.1% 9,077 [+] 17.5% 51,774 -10 -10 3.82%
1988 60% Michael Dukakis (D) 28,759 64.4% George Bush (R) 15,453 34.6% 435 [+] 1.0% 44,647 -10 -19 3.64%
1984 65% Walter Mondale (D) 26,000 57.7% Ronald Reagan* (R) 18,677 41.5% 367 0.8% 45,044 -12 -17 3.41%
1980 67% Jimmy Carter* (D) 20,122 46.8% Ronald Reagan (R) 13,642 31.7% 9,233 [+] 21.5% 42,997 -20 -19 3.26%
1976 68% Jimmy Carter (D) 20,208 52.2% Gerald Ford* (R) 16,090 41.6% 2,412 [+] 6.2% 38,710 -8 -6 3.03%
1972 67% George McGovern (D) 20,922 57.7% Richard Nixon* (R) 14,823 40.9% 491 [+] 1.4% 36,236 -17 -20 2.96%
1968 58% Hubert Humphrey (D) 13,541 52.2% Richard Nixon (R) 11,384 43.9% 1,019 [+] 3.9% 25,944 -9 0 2.22%
1964 54% Lyndon Johnson* (D) 14,717 68.1% Barry Goldwater (R) 6,860 31.7% 41 0.2% 21,618 -6 -7 1.83%
1960 61% Richard Nixon (R) 10,927 50.8% John Kennedy (D) 10,563 49.1% 18 0.1% 21,508 -6 1 1.69%
1956 57% Dwight Eisenhower* (R) 11,298 56.3% Adlai Stevenson (D) 8,767 43.7% 11 0.1% 20,076 -3 -1 1.63%
1952 58% Dwight Eisenhower (R) 11,231 58.0% Adlai Stevenson (D) 8,067 41.7% 52 0.3% 19,350 -6 3 1.53%
1948 54% Harry Truman* (D) 8,611 52.8% Thomas Dewey (R) 7,139 43.8% 553 [+] 3.4% 16,303 -4 -1 1.57%
1944 56% Franklin Roosevelt* (D) 8,434 56.6% Thomas Dewey (R) 6,396 42.9% 67 0.4% 14,897 -9 -3 1.42%
1940 70% Franklin Roosevelt* (D) 9,017 55.4% Wendell Willkie (R) 7,206 44.3% 55 0.3% 16,278 -8 -1 1.34%
1936 70% Franklin Roosevelt* (D) 8,794 59.6% Alf Landon (R) 5,629 38.2% 320 [+] 2.2% 14,743 -5 2 1.29%
1932 71% Franklin Roosevelt (D) 8,764 60.5% Herbert Hoover* (R) 5,484 37.9% 235 [+] 1.6% 14,483 -2 -2 1.40%
1928 76% Herbert Hoover (R) 7,288 50.4% Al Smith (D) 7,181 49.6% 0 0.0% 14,469 -11 -8 1.43%
1924 71% Calvin Coolidge (R) 5,741 44.6% John Davis (D) 4,570 35.5% 2,553 [+] 19.8% 12,864 -10 -9 1.32%
1920 64% Warren Harding (R) 5,696 52.1% James Cox (D) 5,032 46.1% 195 [+] 1.8% 10,923 -19 -8 1.22%
1916 39% Woodrow Wilson* (D) 3,650 57.0% Charles Evans Hughes (R) 2,704 42.2% 49 [+] 0.8% 6,403 -12 -4 1.24%
1912 36% Woodrow Wilson (D) 3,327 56.5% William Taft* (R) 1,645 27.9% 914 [+] 15.5% 5,886 4 5 1.20%
1908 40% William J. Bryan (D) 3,314 53.9% William Taft (R) 2,758 44.8% 79 [+] 1.3% 6,151 -11 -7 1.24%
1904 41% Alton Parker (D) 3,085 50.3% Theodore Roosevelt (R) 2,963 48.3% 91 [+] 1.5% 6,139 -15 -8 1.26%
1900 42% William J. Bryan (D) 3,182 50.8% William McKinley* (R) 3,010 48.1% 66 [+] 1.1% 6,258 -10 -4 1.18%
* incumbent         PSV: percent of state vote



2020 President, Johnson County, IA
CandidateVotesPct
Joe Biden (D) 59,177 70.6%
Donald Trump* (R) 22,925 27.3%
Jo Jorgensen (Lbt) 964 1.1%
Other 785 0.9%
TOTAL 83,851
Turnout: 67% Diff (St): -26 Diff (US): -19


2016 President, Johnson County, IA
CandidateVotesPct
Hillary Clinton (D) 50,200 65.2%
Donald Trump (R) 21,044 27.4%
Gary Johnson (Lbt) 2,758 3.6%
Jill Stein (Grn) 878 1.1%
Evan McMullin (I) 721 0.9%
Other 1,339 1.7%
TOTAL 76,940
Turnout: 66% Diff (St): -24 Diff (US): -19


2012 President, Johnson County, IA
CandidateVotesPct
Barack Obama* (D) 50,666 66.7%
Mitt Romney (R) 23,698 31.2%
Gary Johnson (Lbt) 846 1.1%
Other 767 1.0%
TOTAL 75,977
Turnout: 70% Diff (St): -15 Diff (US): -16


2008 President, Johnson County, IA
CandidateVotesPct
Barack Obama (D) 51,027 69.9%
John McCain (R) 20,732 28.4%
Ralph Nader (I) 326 0.4%
Bob Barr (Lbt) 287 0.4%
Other 617 0.8%
TOTAL 72,989
Turnout: 72% Diff (St): -16 Diff (US): -17


2004 President, Johnson County, IA
CandidateVotesPct
George W. Bush* (R) 22,715 34.7%
John Kerry (D) 41,847 64.0%
Ralph Nader (I) 309 0.5%
Other 502 0.8%
TOTAL 65,373
Turnout: 69% Diff (St): -15 Diff (US): -16


2000 President, Johnson County, IA
CandidateVotesPct
George W. Bush (R) 17,899 33.9%
Albert Gore, Jr. (D) 31,174 59.1%
Ralph Nader (Grn) 3,248 6.2%
Pat Buchanan (Ref) 103 0.2%
Other 345 0.7%
TOTAL 52,769
Turnout: 59% Diff (St): -14 Diff (US): -14


1996 President, Johnson County, IA
CandidateVotesPct
Bill Clinton* (D) 27,888 61.0%
Robert Dole (R) 13,402 29.3%
Ross Perot (Ref) 2,313 5.1%
Ralph Nader (Grn) 1,491 3.3%
Harry Browne (Lbt) 283 0.6%
Other 355 0.8%
TOTAL 45,732
Turnout: 54% Diff (St): -11 Diff (US): -11


1992 President, Johnson County, IA
CandidateVotesPct
Bill Clinton (D) 28,656 55.3%
George Bush* (R) 14,041 27.1%
Ross Perot (I) 8,625 16.7%
Other 452 0.9%
TOTAL 51,774
Turnout: 65% Diff (St): -10 Diff (US): -10


1988 President, Johnson County, IA
CandidateVotesPct
George Bush (R) 15,453 34.6%
Michael Dukakis (D) 28,759 64.4%
Ron Paul (Lbt) 149 0.3%
Other 286 0.6%
TOTAL 44,647
Turnout: 60% Diff (St): -10 Diff (US): -19


1984 President, Johnson County, IA
CandidateVotesPct
Ronald Reagan* (R) 18,677 41.5%
Walter Mondale (D) 26,000 57.7%
Other 367 0.8%
TOTAL 45,044
Turnout: 65% Diff (St): -12 Diff (US): -17


1980 President, Johnson County, IA
CandidateVotesPct
Ronald Reagan (R) 13,642 31.7%
Jimmy Carter* (D) 20,122 46.8%
John Anderson (I) 8,101 18.8%
Edward Clark (Lbt) 508 1.2%
Other 624 1.5%
TOTAL 42,997
Turnout: 67% Diff (St): -20 Diff (US): -19


1976 President, Johnson County, IA
CandidateVotesPct
Jimmy Carter (D) 20,208 52.2%
Gerald Ford* (R) 16,090 41.6%
Eugene McCarthy (I) 2,082 5.4%
Other 330 0.9%
TOTAL 38,710
Turnout: 68% Diff (St): -8 Diff (US): -6


1972 President, Johnson County, IA
CandidateVotesPct
Richard Nixon* (R) 14,823 40.9%
George McGovern (D) 20,922 57.7%
John Schmitz (Amer) 372 1.0%
Other 119 0.3%
TOTAL 36,236
Turnout: 67% Diff (St): -17 Diff (US): -20


1968 President, Johnson County, IA
CandidateVotesPct
Richard Nixon (R) 11,384 43.9%
Hubert Humphrey (D) 13,541 52.2%
George Wallace (AIP) 736 2.8%
Other 283 1.1%
TOTAL 25,944
Turnout: 58% Diff (St): -9 Diff (US): 0


1964 President, Johnson County, IA
CandidateVotesPct
Lyndon Johnson* (D) 14,717 68.1%
Barry Goldwater (R) 6,860 31.7%
Other 41 0.2%
TOTAL 21,618
Turnout: 54% Diff (St): -6 Diff (US): -7


1960 President, Johnson County, IA
CandidateVotesPct
John Kennedy (D) 10,563 49.1%
Richard Nixon (R) 10,927 50.8%
Other 18 0.1%
TOTAL 21,508
Turnout: 61% Diff (St): -6 Diff (US): 1


1956 President, Johnson County, IA
CandidateVotesPct
Dwight Eisenhower* (R) 11,298 56.3%
Adlai Stevenson (D) 8,767 43.7%
Other 11 0.1%
TOTAL 20,076
Turnout: 57% Diff (St): -3 Diff (US): -1


1952 President, Johnson County, IA
CandidateVotesPct
Dwight Eisenhower (R) 11,231 58.0%
Adlai Stevenson (D) 8,067 41.7%
Other 52 0.3%
TOTAL 19,350
Turnout: 58% Diff (St): -6 Diff (US): 3


1948 President, Johnson County, IA
CandidateVotesPct
Harry Truman* (D) 8,611 52.8%
Thomas Dewey (R) 7,139 43.8%
Henry Wallace (Prog) 359 2.2%
Other 194 1.2%
TOTAL 16,303
Turnout: 54% Diff (St): -4 Diff (US): -1


1944 President, Johnson County, IA
CandidateVotesPct
Franklin Roosevelt* (D) 8,434 56.6%
Thomas Dewey (R) 6,396 42.9%
Other 67 0.4%
TOTAL 14,897
Turnout: 56% Diff (St): -9 Diff (US): -3


1940 President, Johnson County, IA
CandidateVotesPct
Franklin Roosevelt* (D) 9,017 55.4%
Wendell Willkie (R) 7,206 44.3%
Other 55 0.3%
TOTAL 16,278
Turnout: 70% Diff (St): -8 Diff (US): -1


1936 President, Johnson County, IA
CandidateVotesPct
Franklin Roosevelt* (D) 8,794 59.6%
Alf Landon (R) 5,629 38.2%
William Lemke (Union) 262 1.8%
Norman Thomas (Soc) 27 0.2%
Other 31 0.2%
TOTAL 14,743
Turnout: 70% Diff (St): -5 Diff (US): 2


1932 President, Johnson County, IA
CandidateVotesPct
Franklin Roosevelt (D) 8,764 60.5%
Herbert Hoover* (R) 5,484 37.9%
Norman Thomas (Soc) 194 1.3%
Other 41 0.3%
TOTAL 14,483
Turnout: 71% Diff (St): -2 Diff (US): -2


1928 President, Johnson County, IA
CandidateVotesPct
Herbert Hoover (R) 7,288 50.4%
Al Smith (D) 7,181 49.6%
TOTAL 14,469
Turnout: 76% Diff (St): -11 Diff (US): -8


1924 President, Johnson County, IA
CandidateVotesPct
Calvin Coolidge (R) 5,741 44.6%
John Davis (D) 4,570 35.5%
Robert LaFollette (Prog) 2,553 19.8%
TOTAL 12,864
Turnout: 71% Diff (St): -10 Diff (US): -9


1920 President, Johnson County, IA
CandidateVotesPct
Warren Harding (R) 5,696 52.1%
James Cox (D) 5,032 46.1%
Eugene Debs (Soc) 136 1.2%
Parley Christiansen (FL) 27 0.2%
Aaron Watkins (Proh) 19 0.2%
Other 13 0.1%
TOTAL 10,923
Turnout: 64% Diff (St): -19 Diff (US): -8


1916 President, Johnson County, IA
CandidateVotesPct
Woodrow Wilson* (D) 3,650 57.0%
Charles Evans Hughes (R) 2,704 42.2%
Allan Benson (Soc) 32 0.5%
James Hanly (Proh) 15 0.2%
Other 2 0.0%
TOTAL 6,403
Turnout: 39% Diff (St): -12 Diff (US): -4


1912 President, Johnson County, IA
CandidateVotesPct
Woodrow Wilson (D) 3,327 56.5%
Theodore Roosevelt (Prog) 763 13.0%
William Taft* (R) 1,645 27.9%
Eugene Debs (Soc) 92 1.6%
Eugene Chafin (Proh) 59 1.0%
TOTAL 5,886
Turnout: 36% Diff (St): 4 Diff (US): 5


1908 President, Johnson County, IA
CandidateVotesPct
William Taft (R) 2,758 44.8%
William J. Bryan (D) 3,314 53.9%
Eugene Debs (Soc) 14 0.2%
Eugene Chafin (Proh) 50 0.8%
Thomas Hisgen (I) 6 0.1%
Other 9 0.1%
TOTAL 6,151
Turnout: 40% Diff (St): -11 Diff (US): -7


1904 President, Johnson County, IA
CandidateVotesPct
Theodore Roosevelt (R) 2,963 48.3%
Alton Parker (D) 3,085 50.3%
Eugene Debs (Soc) 31 0.5%
Silas Swallow (Proh) 43 0.7%
Thomas Watson (Pop) 17 0.3%
TOTAL 6,139
Turnout: 41% Diff (St): -15 Diff (US): -8


1900 President, Johnson County, IA
CandidateVotesPct
William McKinley* (R) 3,010 48.1%
William J. Bryan (D) 3,182 50.8%
John Woolley (Proh) 46 0.7%
Eugene Debs (Soc) 15 0.2%
Other 5 0.1%
TOTAL 6,258
Turnout: 42% Diff (St): -10 Diff (US): -4
* incumbent

Historical Statewide Election Results for Johnson County, IA

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

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2022 S3 51% Michael Franken (D) 45,416 71.3% Charles Grassley* (R) 18,245 28.6% 62 [+] 0.1% 63,723 -27 5.24%
2022 G 51% Deidre DeJear (D) 43,686 68.6% Kim Reynolds* (R) 18,413 28.9% 1,539 [+] 2.4% 63,638 -29 5.21%
2020 S2 66% Theresa Greenfield (D) 57,063 69.1% Joni Ernst* (R) 23,773 28.8% 1,797 [+] 2.2% 82,633 -23 4.94%
2018 G 57% Fred Hubbell (D) 48,758 71.6% Kim Reynolds* (R) 18,119 26.6% 1,230 [+] 1.8% 68,107 -24 5.13%
2016 S3 65% Patty Judge (D) 42,699 57.1% Charles Grassley* (R) 28,914 38.6% 3,220 [+] 4.3% 74,833 -21 4.86%
2014 S2 47% Bruce Braley (D) 34,103 65.0% Joni Ernst (R) 16,749 31.9% 1,595 [+] 3.0% 52,447 -20 4.64%
2014 G 47% Jack Hatch (D) 30,684 58.7% Terry Branstad* (R) 19,775 37.9% 1,779 [+] 3.4% 52,238 -21 4.62%
2010 S3 49% Roxanne Conlin (D) 26,047 50.4% Charles Grassley* (R) 24,347 47.1% 1,262 [+] 2.4% 51,656 -17 4.63%
2010 G 49% Chet Culver* (D) 31,862 61.6% Terry Branstad (R) 17,967 34.7% 1,896 [+] 3.7% 51,725 -18 4.61%
2008 S2 69% Tom Harkin* (D) 52,741 74.9% Christopher Reed (R) 17,537 24.9% 135 [+] 0.2% 70,413 -12 4.69%
2006 G 45% Chet Culver (D) 30,083 68.3% Jim Nussle (R) 12,948 29.4% 1,033 [+] 2.3% 44,064 -15 4.18%
2004 S3 67% Charles Grassley* (R) 33,301 52.4% Arthur Small (D) 27,509 43.3% 2,711 [+] 4.3% 63,521 -18 4.29%
2002 S2 42% Tom Harkin* (D) 24,965 64.6% Greg Ganske (R) 12,315 31.9% 1,339 [+] 3.5% 38,619 -12 3.77%
2002 G 42% Tom Vilsack* (D) 24,278 62.9% Doug Gross (R) 12,377 32.0% 1,967 [+] 5.1% 38,622 -12 3.77%
1998 S3 39% Charles Grassley* (R) 17,901 53.3% David Osterberg (D) 15,138 45.1% 530 [+] 1.6% 33,569 -15 3.54%
1998 G 39% Tom Vilsack (D) 22,546 66.9% Jim Ross Lightfoot (R) 10,666 31.6% 510 [+] 1.5% 33,722 -15 3.53%
1996 S2 54% Tom Harkin* (D) 30,208 66.5% Jim Ross Lightfoot (R) 14,140 31.1% 1,067 [+] 2.3% 45,415 -16 3.71%
1994 G 42% Bonnie Campbell (D) 20,180 59.4% Terry Branstad* (R) 13,093 38.5% 710 [+] 2.1% 33,983 -18 3.41%
1992 S3 64% Charles Grassley* (R) 29,663 58.1% Jean Lloyd-Jones (D) 19,494 38.2% 1,872 [+] 3.7% 51,029 -11 3.95%
1990 S2 42% Tom Harkin* (D) 22,027 67.7% Tom Tauke (R) 10,420 32.0% 89 [+] 0.3% 32,536 -14 3.31%
1990 G 42% Donald Avenson (D) 16,196 50.0% Terry Branstad* (R) 15,687 48.5% 487 [+] 1.5% 32,370 -12 3.31%
1986 S3 37% Charles Grassley* (R) 15,815 60.1% John Roehrick (D) 10,353 39.3% 164 [+] 0.6% 26,332 -6 2.95%
1986 G 37% Lowell Junkins (D) 15,503 58.9% Terry Branstad* (R) 10,700 40.6% 134 [+] 0.5% 26,337 -11 2.89%
1984 S2 65% Tom Harkin (D) 30,549 67.9% Roger Jepsen* (R) 13,576 30.2% 852 [+] 1.9% 44,977 -13 3.48%
1982 G 50% Roxanne Conlin (D) 19,304 58.3% Terry Branstad (R) 13,263 40.1% 549 [+] 1.7% 33,116 -13 3.19%
1980 S3 66% John Culver* (D) 28,412 67.4% Charles Grassley (R) 13,311 31.6% 412 [+] 1.0% 42,135 -22 3.30%
1978 S2 39% Dick Clark* (D) 14,962 66.0% Roger Jepsen (R) 7,375 32.5% 334 [+] 1.5% 22,671 -19 2.75%
1978 G 39% Robert Ray* (R) 14,348 62.2% Jerry Fitzgerald (D) 7,888 34.2% 813 [+] 3.5% 23,049 4 2.73%
1974 S3 40% John Culver (D) 14,020 62.6% David Stanley (R) 8,240 36.8% 146 [+] 0.7% 22,406 -10 2.52%
1974 G 41% Robert Ray* (R) 14,058 61.7% James Schaben (D) 8,546 37.5% 162 [+] 0.7% 22,766 4 2.47%
1972 S2 66% Dick Clark (D) 25,067 70.1% Jack Miller* (R) 10,484 29.3% 188 [+] 0.5% 35,739 -15 2.97%
1972 G 66% Robert Ray* (R) 19,802 55.3% Paul Franzenburg (D) 15,696 43.8% 302 [+] 0.8% 35,800 -3 2.96%
1970 G 38% Robert Fulton (D) 9,538 51.0% Robert Ray* (R) 8,910 47.6% 268 [+] 1.4% 18,716 -3 2.37%
1968 S3 57% Harold Hughes (D) 16,402 63.6% David Stanley (R) 9,373 36.3% 12 [+] 0.0% 25,787 -13 2.25%
1968 G 57% Paul Franzenburg (D) 13,611 53.2% Robert Ray (R) 11,974 46.8% 15 [+] 0.1% 25,600 -7 2.25%
1966 S2 37% Jack Miller* (R) 8,290 52.8% E.B. Smith (D) 6,836 43.6% 564 [+] 3.6% 15,690 -8 1.83%
1966 G 39% Harold Hughes* (D) 11,024 67.4% William Murray (R) 5,266 32.2% 55 [+] 0.3% 16,345 -12 1.83%
1964 G 54% Harold Hughes* (D) 16,352 76.2% Evan Hultman (R) 5,014 23.4% 87 [+] 0.4% 21,453 -8 1.84%
1962 S3 37% E.B. Smith (D) 7,302 52.3% Bourke Hickenlooper* (R) 6,654 47.7% 0 0.0% 13,956 -6 1.73%
1962 G 37% Harold Hughes (D) 8,837 62.9% Norman Erbe* (R) 5,210 37.1% 0 0.0% 14,047 -10 1.71%
1960 S2 60% Jack Miller (R) 10,717 50.7% Herschel Loveless (D) 10,430 49.3% 0 0.0% 21,147 -1 1.71%
1960 G 61% Edward McManus (D) 11,822 55.7% Norman Erbe (R) 9,414 44.3% 0 0.0% 21,236 -8 1.72%
*: 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 Johnson County, IA

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

DateDistrictWinnerRunner-Up OtherTotal Votes
2022-11-08 IA01Christina Bohannan (D) 45,469 71.4% Mariannette Miller-Meeks* (R) 18,120 28.5% 53 0.1% 63,642
County Total for 2022-11-08:   63,642
2020-11-03 IA02Rita Hart (D) 56,129 69.9% Mariannette Miller-Meeks (R) 24,101 30.0% 68 0.1% 80,298
County Total for 2020-11-03:   80,298
2018-11-06 IA02Dave Loebsack* (D) 49,010 72.4% Christopher Peters (R) 16,998 25.1% 1,666 2.5% 67,674
County Total for 2018-11-06:   67,674
2016-11-08 IA02Dave Loebsack* (D) 50,691 68.3% Christopher Peters (R) 23,386 31.5% 112 0.2% 74,189
County Total for 2016-11-08:   74,189
2014-11-04 IA02Dave Loebsack* (D) 35,840 68.7% Mariannette Miller-Meeks (R) 16,232 31.1% 99 0.2% 52,171
County Total for 2014-11-04:   52,171
2012-11-06 IA02Dave Loebsack* (D) 49,219 67.9% John Archer (R) 22,344 30.8% 955 1.3% 72,518
County Total for 2012-11-06:   72,518
2010-11-02 IA02Dave Loebsack* (D) 31,844 62.2% Mariannette Miller-Meeks (R) 17,920 35.0% 1,470 2.9% 51,234
County Total for 2010-11-02:   51,234
2008-11-04 IA02Dave Loebsack* (D) 45,247 65.0% Mariannette Miller-Meeks (R) 20,680 29.7% 3,659 5.3% 69,586
County Total for 2008-11-04:   69,586
2006-11-07 IA02Dave Loebsack (D) 25,898 59.8% Jim Leach* (R) 17,373 40.1% 54 0.1% 43,325
County Total for 2006-11-07:   43,325
2004-11-02 IA02Jim Leach* (R) 31,582 50.3% Dave Franker (D) 29,718 47.4% 1,434 2.3% 62,734
County Total for 2004-11-02:   62,734
2002-11-05 IA02Jim Leach* (R) 19,455 50.5% Julie Thomas (D) 18,298 47.5% 764 2.0% 38,517
County Total for 2002-11-05:   38,517
2000-11-07 IA01Jim Leach* (R) 27,332 53.9% Bob Simpson (D) 21,747 42.9% 1,586 3.1% 50,665
County Total for 2000-11-07:   50,665
1998-11-03 IA01Bob Rush (D) 16,827 50.2% Jim Leach* (R) 16,193 48.3% 516 1.5% 33,536
County Total for 1998-11-03:   33,536
1996-11-05 IA01Bob Rush (D) 24,042 53.6% Jim Leach* (R) 20,052 44.7% 802 1.8% 44,896
County Total for 1996-11-05:   44,896
1994-11-08 IA01Jim Leach* (R) 17,148 51.3% Glen Winekauf (D) 15,379 46.0% 900 2.7% 33,427
County Total for 1994-11-08:   33,427
1992-11-03 IA01Jim Leach* (R) 32,332 65.7% Jan Zonneveld (D) 16,479 33.5% 379 0.8% 49,190
County Total for 1992-11-03:   49,190
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Johnson County, IA

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2023 74,075 13,705 18.5% 39,062 52.7% 21,308 28.8% Dem +25,357 Dem +34.2% 59%
2022 90,975 16,611 18.3% 46,908 51.6% 27,456 30.2% Dem +30,297 Dem +33.3% 73%
2020 97,965 18,086 18.5% 51,898 53.0% 27,981 28.6% Dem +33,812 Dem +34.5% 79%
2018 94,461 18,221 19.3% 44,754 47.4% 31,486 33.3% Dem +26,533 Dem +28.1% 78%
2016 91,858 19,232 20.9% 43,901 47.8% 28,725 31.3% Dem +24,669 Dem +26.9% 79%
2014 89,989 18,315 20.4% 39,041 43.4% 32,633 36.3% Dem +20,726 Dem +23.0% 80%
2012 88,549 18,465 20.9% 39,261 44.3% 30,823 34.8% Dem +20,796 Dem +23.5% 81%
2010 92,585 18,612 20.1% 41,572 44.9% 32,401 35.0% Dem +22,960 Dem +24.8% 88%
2008 91,844 17,369 18.9% 43,495 47.4% 30,980 33.7% Dem +26,126 Dem +28.4% 90%
2006 79,156 15,516 19.6% 34,959 44.2% 28,681 36.2% Dem +19,443 Dem +24.6% 80%
2004 81,467 15,996 19.6% 33,995 41.7% 31,476 38.6% Dem +17,999 Dem +22.1% 86%
2002 70,996 14,097 19.9% 27,137 38.2% 29,762 41.9% Dem +13,040 Dem +18.4% 77%
2000 70,298 14,104 20.1% 27,657 39.3% 28,537 40.6% Dem +13,553 Dem +19.3% 79%
1994 60,716 14,513 23.9% 27,146 44.7% 19,057 31.4% Dem +12,633 Dem +20.8% 74%
1986 55,428 11,328 20.4% 21,749 39.2% 22,351 40.3% Dem +10,421 Dem +18.8% 77%
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.