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Jefferson County, MO


Metropolitan Statistical Area: St. Louis, MO-IL
Designated Market Area: St. Louis, MO-IL
American Communities Project County Type (2023): Middle Suburbs

Places in Jefferson County, MO     [Sort places by name]

 

Tracts in Jefferson County, MO

   



Click here to view demographic data for Jefferson County, MO

2022 population: 229,336   ( 10,603 from 2010 , 2,764 from 2020)
Land area: 656.4 square miles
Population density: 349.4 persons per square mile

2022 Census data
White:214,208 93.40% 2.6%
Black:2,8841.26% 62.4%
Indian:5970.26% 1.8%
Asian:2,1020.92% 44.9%
2+ races:4,0151.75% 52.8%
Hispanic:5,5302.41% 62.3%
Total non-White:15,1286.60% 51.4%

2020-2022 ComponentsNumberRate
Births:5,403 11.9
Deaths:5,70612.6
Net Migration: 2,8736.3
Net Immigration: 860.2
Change in White population:5,466 2.5
Change in Non-White pop.:5,137 2.3



Historical Presidential Election Results for Jefferson County, MO

Recent Trends
VotesΔ MarginSwing %
2020 vs. 2016 R +8,010 R +2,055 D + 2.7%
D +5,955
2020 vs. 2012 R +23,068 R +27,109 R + 21.5%
D -4,041
2020 vs. 2008 R +26,242 R +42,186 R + 37.1%
D -15,944
2016 vs. 2008 R +18,232 R +40,131 R + 39.8%
D -21,899
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% Donald Trump* (R) 77,046 65.9% Joe Biden (D) 37,523 32.1% 2,384 [+] 2.0% 116,953 9 19 3.86%
2016 63% Donald Trump (R) 69,036 64.5% Hillary Clinton (D) 31,568 29.5% 6,391 [+] 6.0% 106,995 8 19 3.78%
2012 59% Mitt Romney (R) 53,978 55.1% Barack Obama* (D) 41,564 42.4% 2,482 [+] 2.5% 98,024 1 8 3.55%
2008 66% Barack Obama (D) 53,467 50.4% John McCain (R) 50,804 47.9% 1,779 [+] 1.7% 106,050 -1 2 3.62%
2004 62% George W. Bush* (R) 46,624 50.0% John Kerry (D) 46,057 49.4% 583 [+] 0.6% 93,264 -3 -1 3.41%
2000 54% Albert Gore, Jr. (D) 38,616 50.0% George W. Bush (R) 36,766 47.6% 1,822 [+] 2.4% 77,204 -3 0 3.27%
1996 49% Bill Clinton* (D) 32,073 48.5% Robert Dole (R) 23,877 36.1% 10,152 [+] 15.4% 66,102 -5 -5 3.06%
1992 59% Bill Clinton (D) 32,569 44.3% George Bush* (R) 20,637 28.1% 20,295 [+] 27.6% 73,501 -6 -9 3.07%
1988 49% George Bush (R) 29,279 51.1% Michael Dukakis (D) 27,738 48.4% 238 [+] 0.4% 57,255 -1 -2 2.74%
1984 51% Ronald Reagan* (R) 34,525 63.3% Walter Mondale (D) 20,026 36.7% 0 0.0% 54,551 3 4 2.57%
1980 56% Ronald Reagan (R) 28,546 52.0% Jimmy Carter* (D) 24,042 43.8% 2,294 [+] 4.2% 54,882 1 1 2.61%
1976 54% Jimmy Carter (D) 25,159 57.3% Gerald Ford* (R) 18,261 41.6% 495 [+] 1.1% 43,915 -6 -6 2.25%
1972 50% Richard Nixon* (R) 21,947 61.1% George McGovern (D) 13,787 38.4% 188 [+] 0.5% 35,922 -1 0 1.93%
1968 55% Hubert Humphrey (D) 13,230 42.6% Richard Nixon (R) 11,708 37.7% 6,115 [+] 19.7% 31,053 -7 -6 1.72%
1964 57% Lyndon Johnson* (D) 18,916 70.6% Barry Goldwater (R) 7,887 29.4% 0 0.0% 26,803 -7 -9 1.47%
1960 79% John Kennedy (D) 17,054 56.9% Richard Nixon (R) 12,910 43.1% 0 0.0% 29,964 -7 -7 1.55%
1956 73% Adlai Stevenson (D) 13,868 56.4% Dwight Eisenhower* (R) 10,712 43.6% 0 0.0% 24,580 -6 -14 1.34%
1952 84% Adlai Stevenson (D) 12,808 57.1% Dwight Eisenhower (R) 9,607 42.8% 22 0.1% 22,437 -8 -12 1.19%
1948 74% Harry Truman* (D) 10,280 62.5% Thomas Dewey (R) 6,085 37.0% 70 [+] 0.4% 16,435 -4 -8 1.04%
1944 71% Franklin Roosevelt* (D) 7,953 53.9% Thomas Dewey (R) 6,758 45.8% 34 0.2% 14,745 -3 0 0.94%
1940 88% Franklin Roosevelt* (D) 9,553 55.8% Wendell Willkie (R) 7,517 43.9% 45 0.3% 17,115 -4 -1 0.93%
1936 86% Franklin Roosevelt* (D) 9,158 61.2% Alf Landon (R) 5,575 37.2% 241 [+] 1.6% 14,974 -1 1 0.82%
1932 79% Franklin Roosevelt (D) 8,130 63.3% Herbert Hoover* (R) 4,559 35.5% 155 [+] 1.2% 12,844 0 -4 0.80%
1928 76% Herbert Hoover (R) 6,285 54.5% Al Smith (D) 5,231 45.3% 22 [+] 0.2% 11,538 -1 -4 0.77%
1924 67% Calvin Coolidge (R) 4,870 48.9% John Davis (D) 4,356 43.7% 737 [+] 7.4% 9,963 -1 -5 0.76%
1920 73% Warren Harding (R) 5,730 54.1% James Cox (D) 4,684 44.2% 181 [+] 1.7% 10,595 0 -6 0.79%
1916 45% Charles Evans Hughes (R) 3,310 51.0% Woodrow Wilson* (D) 3,021 46.6% 158 [+] 2.4% 6,489 4 5 0.82%
1912 36% Woodrow Wilson (D) 2,368 45.5% William Taft* (R) 2,127 40.8% 713 [+] 13.7% 5,208 11 18 0.75%
1908 43% William Taft (R) 3,050 52.0% William J. Bryan (D) 2,698 46.0% 117 [+] 2.0% 5,865 4 0 0.82%
1904 43% Theodore Roosevelt (R) 2,909 52.1% Alton Parker (D) 2,560 45.8% 116 [+] 2.1% 5,585 2 -4 0.87%
1900 45% William J. Bryan (D) 2,798 49.6% William McKinley* (R) 2,775 49.2% 67 [+] 1.2% 5,640 3 -2 0.83%
* incumbent         PSV: percent of state vote



2020 President, Jefferson County, MO
CandidateVotesPct
Joe Biden (D) 37,523 32.1%
Donald Trump* (R) 77,046 65.9%
Jo Jorgensen (Lbt) 1,635 1.4%
Other 749 0.6%
TOTAL 116,953
Turnout: 67% Diff (St): 9 Diff (US): 19


2016 President, Jefferson County, MO
CandidateVotesPct
Hillary Clinton (D) 31,568 29.5%
Donald Trump (R) 69,036 64.5%
Gary Johnson (Lbt) 3,968 3.7%
Jill Stein (Grn) 930 0.9%
Evan McMullin (I) 178 0.2%
Other 1,315 1.2%
TOTAL 106,995
Turnout: 63% Diff (St): 8 Diff (US): 19


2012 President, Jefferson County, MO
CandidateVotesPct
Barack Obama* (D) 41,564 42.4%
Mitt Romney (R) 53,978 55.1%
Gary Johnson (Lbt) 1,715 1.7%
Other 767 0.8%
TOTAL 98,024
Turnout: 59% Diff (St): 1 Diff (US): 8


2008 President, Jefferson County, MO
CandidateVotesPct
Barack Obama (D) 53,467 50.4%
John McCain (R) 50,804 47.9%
Ralph Nader (I) 761 0.7%
Bob Barr (Lbt) 413 0.4%
Other 605 0.6%
TOTAL 106,050
Turnout: 66% Diff (St): -1 Diff (US): 2


2004 President, Jefferson County, MO
CandidateVotesPct
George W. Bush* (R) 46,624 50.0%
John Kerry (D) 46,057 49.4%
Other 583 0.6%
TOTAL 93,264
Turnout: 62% Diff (St): -3 Diff (US): -1


2000 President, Jefferson County, MO
CandidateVotesPct
George W. Bush (R) 36,766 47.6%
Albert Gore, Jr. (D) 38,616 50.0%
Ralph Nader (Grn) 1,182 1.5%
Pat Buchanan (Ref) 305 0.4%
Other 335 0.4%
TOTAL 77,204
Turnout: 54% Diff (St): -3 Diff (US): 0


1996 President, Jefferson County, MO
CandidateVotesPct
Bill Clinton* (D) 32,073 48.5%
Robert Dole (R) 23,877 36.1%
Ross Perot (Ref) 8,893 13.5%
Harry Browne (Lbt) 322 0.5%
Other 937 1.4%
TOTAL 66,102
Turnout: 49% Diff (St): -5 Diff (US): -5


1992 President, Jefferson County, MO
CandidateVotesPct
Bill Clinton (D) 32,569 44.3%
George Bush* (R) 20,637 28.1%
Ross Perot (I) 20,057 27.3%
Other 238 0.3%
TOTAL 73,501
Turnout: 59% Diff (St): -6 Diff (US): -9


1988 President, Jefferson County, MO
CandidateVotesPct
George Bush (R) 29,279 51.1%
Michael Dukakis (D) 27,738 48.4%
Other 238 0.4%
TOTAL 57,255
Turnout: 49% Diff (St): -1 Diff (US): -2


1984 President, Jefferson County, MO
CandidateVotesPct
Ronald Reagan* (R) 34,525 63.3%
Walter Mondale (D) 20,026 36.7%
TOTAL 54,551
Turnout: 51% Diff (St): 3 Diff (US): 4


1980 President, Jefferson County, MO
CandidateVotesPct
Ronald Reagan (R) 28,546 52.0%
Jimmy Carter* (D) 24,042 43.8%
John Anderson (I) 1,753 3.2%
Edward Clark (Lbt) 526 1.0%
Other 15 0.0%
TOTAL 54,882
Turnout: 56% Diff (St): 1 Diff (US): 1


1976 President, Jefferson County, MO
CandidateVotesPct
Jimmy Carter (D) 25,159 57.3%
Gerald Ford* (R) 18,261 41.6%
Eugene McCarthy (I) 495 1.1%
TOTAL 43,915
Turnout: 54% Diff (St): -6 Diff (US): -6


1972 President, Jefferson County, MO
CandidateVotesPct
Richard Nixon* (R) 21,947 61.1%
George McGovern (D) 13,787 38.4%
Other 188 0.5%
TOTAL 35,922
Turnout: 50% Diff (St): -1 Diff (US): 0


1968 President, Jefferson County, MO
CandidateVotesPct
Richard Nixon (R) 11,708 37.7%
Hubert Humphrey (D) 13,230 42.6%
George Wallace (AIP) 6,115 19.7%
TOTAL 31,053
Turnout: 55% Diff (St): -7 Diff (US): -6


1964 President, Jefferson County, MO
CandidateVotesPct
Lyndon Johnson* (D) 18,916 70.6%
Barry Goldwater (R) 7,887 29.4%
TOTAL 26,803
Turnout: 57% Diff (St): -7 Diff (US): -9


1960 President, Jefferson County, MO
CandidateVotesPct
John Kennedy (D) 17,054 56.9%
Richard Nixon (R) 12,910 43.1%
TOTAL 29,964
Turnout: 79% Diff (St): -7 Diff (US): -7


1952 President, Jefferson County, MO
CandidateVotesPct
Dwight Eisenhower (R) 9,607 42.8%
Adlai Stevenson (D) 12,808 57.1%
Other 22 0.1%
TOTAL 22,437
Turnout: 84% Diff (St): -8 Diff (US): -12


1948 President, Jefferson County, MO
CandidateVotesPct
Harry Truman* (D) 10,280 62.5%
Thomas Dewey (R) 6,085 37.0%
Henry Wallace (Prog) 47 0.3%
Other 23 0.1%
TOTAL 16,435
Turnout: 74% Diff (St): -4 Diff (US): -8


1944 President, Jefferson County, MO
CandidateVotesPct
Franklin Roosevelt* (D) 7,953 53.9%
Thomas Dewey (R) 6,758 45.8%
Other 34 0.2%
TOTAL 14,745
Turnout: 71% Diff (St): -3 Diff (US): 0


1940 President, Jefferson County, MO
CandidateVotesPct
Franklin Roosevelt* (D) 9,553 55.8%
Wendell Willkie (R) 7,517 43.9%
Other 45 0.3%
TOTAL 17,115
Turnout: 88% Diff (St): -4 Diff (US): -1


1936 President, Jefferson County, MO
CandidateVotesPct
Franklin Roosevelt* (D) 9,158 61.2%
Alf Landon (R) 5,575 37.2%
William Lemke (Union) 208 1.4%
Norman Thomas (Soc) 18 0.1%
Other 15 0.1%
TOTAL 14,974
Turnout: 86% Diff (St): -1 Diff (US): 1


1932 President, Jefferson County, MO
CandidateVotesPct
Franklin Roosevelt (D) 8,130 63.3%
Herbert Hoover* (R) 4,559 35.5%
Norman Thomas (Soc) 136 1.1%
Other 19 0.1%
TOTAL 12,844
Turnout: 79% Diff (St): 0 Diff (US): -4


1928 President, Jefferson County, MO
CandidateVotesPct
Herbert Hoover (R) 6,285 54.5%
Al Smith (D) 5,231 45.3%
Norman Thomas (Soc) 20 0.2%
Other 2 0.0%
TOTAL 11,538
Turnout: 76% Diff (St): -1 Diff (US): -4


1924 President, Jefferson County, MO
CandidateVotesPct
Calvin Coolidge (R) 4,870 48.9%
John Davis (D) 4,356 43.7%
Robert LaFollette (Prog) 729 7.3%
Other 8 0.1%
TOTAL 9,963
Turnout: 67% Diff (St): -1 Diff (US): -5


1920 President, Jefferson County, MO
CandidateVotesPct
Warren Harding (R) 5,730 54.1%
James Cox (D) 4,684 44.2%
Other 181 1.7%
TOTAL 10,595
Turnout: 73% Diff (St): 0 Diff (US): -6


1916 President, Jefferson County, MO
CandidateVotesPct
Woodrow Wilson* (D) 3,021 46.6%
Charles Evans Hughes (R) 3,310 51.0%
Allan Benson (Soc) 130 2.0%
James Hanly (Proh) 19 0.3%
Other 9 0.1%
TOTAL 6,489
Turnout: 45% Diff (St): 4 Diff (US): 5


1912 President, Jefferson County, MO
CandidateVotesPct
Woodrow Wilson (D) 2,368 45.5%
Theodore Roosevelt (Prog) 485 9.3%
William Taft* (R) 2,127 40.8%
Eugene Debs (Soc) 200 3.8%
Eugene Chafin (Proh) 19 0.4%
Other 9 0.2%
TOTAL 5,208
Turnout: 36% Diff (St): 11 Diff (US): 18


1908 President, Jefferson County, MO
CandidateVotesPct
William Taft (R) 3,050 52.0%
William J. Bryan (D) 2,698 46.0%
Eugene Debs (Soc) 65 1.1%
Eugene Chafin (Proh) 19 0.3%
Thomas Hisgen (I) 1 0.0%
Other 32 0.5%
TOTAL 5,865
Turnout: 43% Diff (St): 4 Diff (US): 0


1904 President, Jefferson County, MO
CandidateVotesPct
Theodore Roosevelt (R) 2,909 52.1%
Alton Parker (D) 2,560 45.8%
Eugene Debs (Soc) 45 0.8%
Silas Swallow (Proh) 33 0.6%
Thomas Watson (Pop) 32 0.6%
Other 6 0.1%
TOTAL 5,585
Turnout: 43% Diff (St): 2 Diff (US): -4


1900 President, Jefferson County, MO
CandidateVotesPct
William McKinley* (R) 2,775 49.2%
William J. Bryan (D) 2,798 49.6%
John Woolley (Proh) 28 0.5%
Eugene Debs (Soc) 14 0.2%
Other 25 0.4%
TOTAL 5,640
Turnout: 45% Diff (St): 3 Diff (US): -2
* incumbent

Historical Statewide Election Results for Jefferson County, MO

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

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2022 S3 45% Eric Schmitt (R) 48,881 61.5% Trudy Busch-Valentine (D) 28,670 36.1% 1,887 [+] 2.4% 79,438 6 3.84%
2020 G 66% Mike Parson* (R) 73,921 63.9% Nicole Galloway (D) 38,854 33.6% 2,886 [+] 2.5% 115,661 7 3.84%
2018 S1 53% Josh Hawley (R) 49,142 54.3% Claire McCaskill* (D) 37,915 41.9% 3,390 [+] 3.7% 90,447 3 3.70%
2016 S3 62% Roy Blunt* (R) 53,218 50.3% Jason Kander (D) 46,975 44.4% 5,517 [+] 5.2% 105,710 1 3.77%
2016 G 62% Eric Greitens (R) 56,755 53.6% Chris Koster (D) 45,234 42.7% 3,848 [+] 3.6% 105,837 2 3.78%
2012 S1 59% Claire McCaskill* (D) 51,862 53.5% Todd Akin (R) 38,745 40.0% 6,316 [+] 6.5% 96,923 1 3.56%
2012 G 59% Jay Nixon* (D) 53,971 55.7% Dave Spence (R) 40,470 41.8% 2,484 [+] 2.6% 96,925 -1 3.55%
2010 S3 40% Roy Blunt (R) 35,585 53.8% Robin Carnahan (D) 25,689 38.9% 4,815 [+] 7.3% 66,089 0 3.40%
2008 G 65% Jay Nixon (D) 66,697 63.9% Kenny Hulshof (R) 35,947 34.4% 1,781 [+] 1.7% 104,425 -5 3.63%
2006 S1 47% Claire McCaskill (D) 39,271 53.3% Jim Talent* (R) 32,232 43.8% 2,153 [+] 2.9% 73,656 -4 3.46%
2004 S3 61% Christopher Bond* (R) 47,203 50.8% Nancy Farmer (D) 44,469 47.9% 1,203 [+] 1.3% 92,875 -5 3.43%
2004 G 62% Claire McCaskill (D) 45,909 49.2% Matt Blunt (R) 45,891 49.2% 1,424 [+] 1.5% 93,224 -2 3.43%
2002 S1 42% Jean Carnahan* (D) 32,497 52.1% Jim Talent (R) 29,018 46.5% 869 [+] 1.4% 62,384 -3 3.32%
2000 S1 54% Mel Carnahan (D) 41,321 53.5% John Ashcroft* (R) 34,980 45.3% 951 [+] 1.2% 77,252 -3 3.27%
2000 G 56% Bob Holden (D) 37,808 47.6% Jim Talent (R) 36,060 45.4% 5,550 [+] 7.0% 79,418 1 3.38%
1998 S3 36% Jay Nixon (D) 25,399 50.9% Christopher Bond* (R) 20,906 41.9% 3,636 [+] 7.3% 49,941 -7 3.17%
1996 G 49% Mel Carnahan* (D) 34,970 53.0% Margaret Kelly (R) 28,986 43.9% 2,077 [+] 3.1% 66,033 3 3.08%
1994 S1 42% John Ashcroft (R) 33,020 60.4% Alan Wheat (D) 18,795 34.4% 2,893 [+] 5.3% 54,708 1 3.08%
1992 S3 58% Christopher Bond* (R) 35,411 48.7% Geri Rothman-Serot (D) 34,443 47.3% 2,933 [+] 4.0% 72,787 -3 3.09%
1992 G 58% Mel Carnahan (D) 45,667 63.2% William Webster (R) 26,542 36.8% 0 0.0% 72,209 -5 3.08%
1988 S1 49% John Danforth* (R) 34,252 59.8% Jay Nixon (D) 22,650 39.5% 377 [+] 0.7% 57,279 -8 2.76%
1988 G 49% John Ashcroft* (R) 35,559 62.1% Betty Hearnes (D) 21,104 36.8% 610 [+] 1.1% 57,273 -2 2.75%
1986 S3 35% Christopher Bond (R) 20,220 52.1% Harriett Woods (D) 18,559 47.9% 5 [+] 0.0% 38,784 -1 2.63%
1984 G 51% John Ashcroft (R) 30,058 55.5% Kenneth Rothman (D) 24,053 44.5% 0 0.0% 54,111 -1 2.57%
1982 S1 36% John Danforth* (R) 19,127 51.9% Harriett Woods (D) 17,750 48.1% 0 0.0% 36,877 1 2.39%
1980 S3 56% Gene McNary (R) 29,367 54.0% Thomas Eagleton* (D) 24,862 45.7% 138 [+] 0.3% 54,367 6 2.63%
1980 G 56% Christopher Bond (R) 27,691 50.7% Joseph Teasdale* (D) 26,762 49.0% 121 [+] 0.2% 54,574 -2 2.61%
1976 S1 53% John Danforth (R) 21,847 50.2% Warren Hearnes (D) 21,522 49.4% 188 [+] 0.4% 43,557 -7 2.27%
1976 G 53% Joseph Teasdale (D) 23,904 54.5% Christopher Bond* (R) 19,858 45.3% 75 [+] 0.2% 43,837 -4 2.27%
1974 S3 33% Thomas Eagleton* (D) 16,022 62.7% Thomas Curtis (R) 9,283 36.3% 255 [+] 1.0% 25,560 -3 2.09%
1972 G 51% Christopher Bond (R) 19,449 53.7% Eugene Dowd (D) 16,703 46.2% 39 [+] 0.1% 36,191 -1 1.94%
1970 S1 40% Stuart Symington* (D) 12,909 51.7% John Danforth (R) 11,498 46.1% 556 [+] 2.2% 24,963 -2 1.94%
1968 S3 54% Thomas Eagleton (D) 15,858 52.5% Thomas Curtis (R) 14,346 47.5% 0 0.0% 30,204 -1 1.74%
1968 G 55% Warren Hearnes* (D) 21,484 70.0% Lawrence Roos (R) 9,224 30.0% 0 0.0% 30,708 -9 1.74%
1964 S1 57% Stuart Symington* (D) 19,902 74.6% Jean Paul Bradshaw (R) 6,772 25.4% 0 0.0% 26,674 -8 1.50%
1964 G 57% Warren Hearnes (D) 17,403 65.1% Ethan Shepley (R) 9,330 34.9% 0 0.0% 26,733 -3 1.49%
1962 S3 40% Edward Long* (D) 10,302 60.5% Crosby Kemper (R) 6,734 39.5% 0 0.0% 17,036 -6 1.39%
1960 S3 77% Edward Long (D) 17,621 60.1% Lon Hocker (R) 11,690 39.9% 0 0.0% 29,311 -7 1.56%
1960 G 77% John Dalton (D) 19,023 64.8% Edward Farmer (R) 10,339 35.2% 0 0.0% 29,362 -7 1.56%
*: 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 Jefferson County, MO

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

DateDistrictWinnerRunner-Up OtherTotal Votes
2022-11-08 MO03Blaine Luetkemeyer* (R) 16,531 66.9% Bethany Mann (D) 8,172 33.1% 0 0.0% 24,703
2022-11-08 MO08Jason Smith* (R) 34,506 64.0% Randi McCallian (D) 17,826 33.1% 1,543 2.9% 53,875
County Total for 2022-11-08:   78,578
2020-11-03 MO02Ann Wagner* (R) 12,932 59.2% Jill Schupp (D) 7,764 35.6% 1,134 5.2% 21,830
2020-11-03 MO03Blaine Luetkemeyer* (R) 39,341 65.7% Megan Rezabek (D) 19,223 32.1% 1,326 2.2% 59,890
2020-11-03 MO08Jason Smith* (R) 20,945 67.4% Kathy Ellis (D) 9,364 30.1% 777 2.5% 31,086
County Total for 2020-11-03:   112,806
2018-11-06 MO02Ann Wagner* (R) 9,417 54.9% Cort Van Ostran (D) 7,219 42.1% 507 3.0% 17,143
2018-11-06 MO03Blaine Luetkemeyer* (R) 27,955 59.3% Katy Geppert (D) 17,746 37.7% 1,431 3.0% 47,132
2018-11-06 MO08Jason Smith* (R) 14,442 59.5% Kathy Ellis (D) 9,361 38.6% 477 2.0% 24,280
County Total for 2018-11-06:   88,555
2016-11-08 MO02Ann Wagner* (R) 11,930 61.0% Bill Otto (D) 6,542 33.5% 1,074 5.5% 19,546
2016-11-08 MO03Blaine Luetkemeyer* (R) 33,530 61.6% Kevin Miller (D) 18,333 33.7% 2,603 4.8% 54,466
2016-11-08 MO08Jason Smith* (R) 18,030 64.0% Dave Cowell (D) 9,155 32.5% 996 3.5% 28,181
County Total for 2016-11-08:   102,193
2014-11-04 MO02Ann Wagner* (R) 5,988 61.9% Arthur Lieber (D) 3,247 33.6% 437 4.5% 9,672
2014-11-04 MO03Blaine Luetkemeyer* (R) 16,558 60.1% Courtney Denton (D) 9,637 35.0% 1,347 4.9% 27,542
2014-11-04 MO08Jason Smith* (R) 8,060 52.2% Barbara Stocker (D) 5,826 37.8% 1,547 10.0% 15,433
County Total for 2014-11-04:   52,647
2013-06-04 sp MO08Jason Smith (R) 1,863 57.7% Steve Hodges (D) 1,244 38.5% 121 3.7% 3,228
County Total for 2013-06-04:   3,228
2012-11-06 MO02Ann Wagner (R) 9,976 55.5% Glenn Koenen (D) 7,362 41.0% 627 3.5% 17,965
2012-11-06 MO03Blaine Luetkemeyer* (R) 25,898 53.0% Eric Mayer (D) 20,650 42.3% 2,288 4.7% 48,836
2012-11-06 MO08Jo Ann Emerson* (R) 14,692 56.9% Jack Rushin (D) 10,090 39.1% 1,030 4.0% 25,812
County Total for 2012-11-06:   92,613
2010-11-02 MO03Ed Martin (R) 37,659 57.0% Russ Carnahan* (D) 24,237 36.7% 4,185 6.3% 66,081
County Total for 2010-11-02:   66,081
2008-11-04 MO03Russ Carnahan* (D) 62,050 60.8% Chris Sander (R) 36,248 35.5% 3,757 3.7% 102,055
County Total for 2008-11-04:   102,055
2006-11-07 MO03Russ Carnahan* (D) 43,950 61.3% David Bertelsen (R) 25,827 36.0% 1,907 2.7% 71,684
County Total for 2006-11-07:   71,684
2004-11-02 MO03Bill Federer (R) 46,204 50.0% Russ Carnahan (D) 44,594 48.2% 1,676 1.8% 92,474
County Total for 2004-11-02:   92,474
2002-11-05 MO03Dick Gephardt* (D) 34,852 56.2% Catherine Enz (R) 25,986 41.9% 1,172 1.9% 62,010
County Total for 2002-11-05:   62,010
2000-11-07 MO03Dick Gephardt* (D) 43,637 57.0% Bill Federer (R) 31,359 41.0% 1,578 2.1% 76,574
County Total for 2000-11-07:   76,574
1998-11-03 MO03Dick Gephardt* (D) 27,568 57.2% Bill Federer (R) 19,290 40.1% 1,305 2.7% 48,163
County Total for 1998-11-03:   48,163
1996-11-05 MO03Dick Gephardt* (D) 39,596 60.1% Debbie Wheelehan (R) 24,505 37.2% 1,755 2.7% 65,856
County Total for 1996-11-05:   65,856
1994-11-08 MO03Dick Gephardt* (D) 31,230 56.9% Gary Gill (R) 21,758 39.6% 1,900 3.5% 54,888
County Total for 1994-11-08:   54,888
1992-11-03 MO03Dick Gephardt* (D) 46,922 64.4% Mack Holekamp (R) 23,265 31.9% 2,648 3.6% 72,835
County Total for 1992-11-03:   72,835
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Jefferson County, MO

Party registration is not used in this state, however as of 2022 registrations in Jefferson County, MO were estimated to be 59% Republican and 18% Democrat.

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2022 159,486 0 0.0% 0 0.0% 159,486 100.0% n/a n/a 91%
2020 158,829 0 0.0% 0 0.0% 158,829 100.0% n/a n/a 90%
2018 152,975 0 0.0% 0 0.0% 152,975 100.0% n/a n/a 88%
2016 148,904 0 0.0% 0 0.0% 148,904 100.0% n/a n/a 87%
2014 138,097 0 0.0% 0 0.0% 138,097 100.0% n/a n/a 82%
2012 148,011 0 0.0% 0 0.0% 148,011 100.0% n/a n/a 89%
2010 143,343 0 0.0% 0 0.0% 143,343 100.0% n/a n/a 88%
2008 146,316 0 0.0% 0 0.0% 146,316 100.0% n/a n/a 92%
2006 141,066 0 0.0% 0 0.0% 141,066 100.0% n/a n/a 91%
2004 156,770 0 0.0% 0 0.0% 156,770 100.0% n/a n/a 104%
2002 111,352 0 0.0% 0 0.0% 111,352 100.0% n/a n/a 76%
2000 129,889 0 0.0% 0 0.0% 129,889 100.0% n/a n/a 91%
1994 89,302 0 0.0% 0 0.0% 89,302 100.0% n/a n/a 69%
1986 75,308 0 0.0% 0 0.0% 75,308 100.0% n/a n/a 68%
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.