Big fan of election and demographic numbers since 2006
 

States – Montana

PresidentCongressState OfficesState Legislature

Data I Have: PresidentU.S. SenateU.S. HouseGovernorLieutenant GovernorSecretary of StateAttorney GeneralTreasurerAuditor

President

ElectionPresidentElectoral Votes
1892
Harrison (R)
3
1896
Bryan (D)
3
1900
Bryan (D)
3
1904
Roosevelt (R)
3
1908
Taft (R)
3
1912
Wilson (D)
4
1916
Wilson (D)
4
1920
Harding (R)
4
1924
Coolidge (R)
4
1928
Hoover (R)
4
1932
Hoover (R)
4
1936
Roosevelt (D)
4
1940
Roosevelt (D)
4
1944
Roosevelt (D)
4
1948
Truman (D)
4
1952
Eisenhower (R)
4
1956
Eisenhower (R)
4
1960
Nixon (R)
4
1964
Johnson (D)
4
1968
Nixon (R)
4
1972
Nixon (R)
4
1976
Ford (R)
4
1980
Reagan (R)
4
1984
Reagan (R)
4
1988
Bush (R)
4
1992
Clinton (D)
3
1996
Dole (R)
3
2000
Bush (R)
3
2004
Bush (R)
3
2008
McCain (R)
3
2012
Romney (R)
3
2016
Trump (R)
3
2020
Trump (R)
3

Congress

ElectionClass 1
Senator
Class 2
Senator
District 1District 2
1890
Sanders (R)
Power (R)
Dixon (D) (AL)
1892
Hartman (R) (AL)
1894
Mantle (R) (S)
Carter (R)
Hartman (R) (AL)
1896
Hartman (R) (AL)
1898
Clark (D)
Campbell (D) (AL)
1900
Gibson (D) (S)
Clark (D)
Edwards (Pop.) (AL)
1902
Dixon (R) (AL)
1904
Carter (R)
Dixon (R) (AL)
1906
Dixon (R)
Pray (R) (AL)
1908
Pray (R) (AL)
1910
Myers (D)
Pray (R) (AL)
1912
Walsh (D)
Evans (D) (AL)
Stout (D) (AL)
1914
Evans (D) (AL)
Stout (D) (AL)
1916
Myers (D)
Evans (D) (AL)
Rankin (R) (AL)
1918
Walsh (D)
Evans (D)
Riddick (R)
1920
McCormick (R)
Riddick (R)
1922
Wheeler (D)
Evans (D)
Leavitt (R)
1924
Walsh (D)
Evans (D)
Leavitt (R)
1926
Evans (D)
Leavitt (R)
1928
Wheeler (D)
Evans (D)
Leavitt (R)
1930
Walsh (D)
Evans (D)
Leavitt (R)
1932
Monaghan (D)
Ayers (D)
1934
Wheeler (D)
Murray (D) (S)
Monaghan (D)
Ayers (D)
1936
Murray (D)
O’Connell (D)
O’Connor (D)
1938
Thorkelson (R)
O’Connor (D)
1940
Wheeler (D)
Rankin (R)
Rankin (R)
O’Connor (D)
1942
Murray (D)
Mansfield (D)
O’Connor (D)
1944
Mansfield (D)
O’Connor (D)
1945
D’Ewart (R) (S)
1946
Ecton (R)
Mansfield (D)
D’Ewart (R)
1948
Hunt (D)
Mansfield (D)
D’Ewart (R)
1950
Mansfield (D)
D’Ewart (R)
1952
Mansfield (D)
Metcalf (D)
D’Ewart (R)
1954
Murray (D)
Metcalf (D)
Fjare (R)
1956
Metcalf (D)
Anderson (D)
1958
Mansfield (D)
Metcalf (D)
Anderson (D)
1960
Metcalf (D)
Olsen (D)
Battin (R)
1962
M. Simpson (R) (S)
Olsen (D)
Battin (R)
1964
Mansfield (D)
Olsen (D)
Battin (R)
1966
Metcalf (D)
Olsen (D)
Battin (R)
1968
Olsen (D)
Battin (R)
1969
Melcher (D) (S)
1970
Mansfield (D)
Shoup (R)
Melcher (D)
1972
Metcalf (D)
Shoup (R)
Melcher (D)
1974
Baucus (D)
Melcher (D)
1976
Melcher (D)
Baucus (D)
Marlenee (R)
1978
Baucus (D)
Williams (D)
Marlenee (R)
1980
Williams (D)
Marlenee (R)
1982
Melcher (D)
Williams (D)
Marlenee (R)
1984
Baucus (D)
Williams (D)
Marlenee (R)
1986
Williams (D)
Marlenee (R)
1988
Burns (R)
Williams (D)
Marlenee (R)
1990
Baucus (D)
Williams (D)
Marlenee (R)
1992
Williams (D) (AL)
1994
Burns (R)
Williams (D) (AL)
1996
Baucus (D)
Hill (R) (AL)
1998
Hill (R) (AL)
2000
Burns (R)
Rehberg (R) (AL)
2002
Baucus (D)
Rehberg (R) (AL)
2004
Rehberg (R) (AL)
2006
Tester (D)
Rehberg (R) (AL)
2008
Baucus (D)
Rehberg (R) (AL)
2010
Rehberg (R) (AL)
2012
Tester (D)
Daines (R) (AL)
2014
Daines (R)
Zinke (R) (AL)
2016
Zinke (R) (AL)
2017
Gianforte (R) (AL) (S)
2018
Tester (D)
Rosendale (R) (AL)
2020
Daines (R)
Gianforte (R) (AL)
2022
Gianforte (R) (AL)

State Offices

YearGLGSoSAGTASPI
1889
D
R
R
R
R
R
I
1890
D
R
R
R
R
R
I
1891
D
R
R
R
R
R
I
1892
D
R
R
R
R
R
I
1893
R
R
R
R
R
R
R
1894
R
R
R
R
R
R
R
1895
R
R
R
R
R
R
R
1896
R
R
R
R
R
R
R
1897
D
D
Populist
D
D
D
R
1898
D
D
Populist
D
D
D
R
1899
D
D
Populist
D
D
D
R
1900
D
D
Populist
D
D
D
R
1901
D
D
D
D
D
Populist
D
1902
D
D
D
D
D
Populist
D
1903
D
D
D
D
D
Populist
D
1904
D
D
D
D
D
Populist
D
1905
D
D
R
R
R
R
R
1906
D
D
R
R
R
R
R
1907
D
D
R
R
R
R
R
1908
D
R
R
R
R
R
R
1909
D
R
R
R
R
R
R
1910
D
R
R
R
R
R
R
1911
D
R
R
R
R
I
R
1912
D
R
D
R
R
I
R
1913
D
D
D
D
D
D
D
1914
D
D
D
D
D
D
D
1915
D
D
D
D
D
D
D
1916
D
D
D
D
D
D
D
1917
D
D
R
R
R
D
R
1918
D
D
R
R
R
D
R
1919
D
D
R
R
R
R
R
1920
D
D
R
R
R
R
R
1921
R
R
R
R
R
R
R
1922
R
R
R
R
R
R
R
1923
R
R
R
R
R
R
R
1924
R
R
R
R
R
R
R
1925
D
R
R
R
R
R
R
1926
D
R
R
R
R
R
R
1927
D
R
D
R
R
R
R
1928
D
R
D
R
R
R
R
1929
D
R
R
R
R
R
R
1930
D
R
R
R
R
R
R
1931
D
R
R
R
R
R
R
1932
D
R
R
R
R
R
R
1933
D
D
D
D
D
D
R
1934
D
R
D
D
D
D
R
1935
D
R
D
D
D
D
R
1936
D
D
D
D
D
D
R
1937
D
D
D
D
D
D
D
1938
D
D
D
D
D
D
D
1939
D
D
D
D
D
D
D
1940
D
D
D
D
D
D
D
1941
R
R
D
D
D
D
R
1942
R
R
D
D
D
D
R
1943
R
R
D
D
D
D
R
1944
R
R
D
D
R
D
R
1945
R
R
D
D
R
D
R
1946
R
R
D
D
R
D
R
1947
R
R
D
D
R
D
R
1948
R
R
D
D
R
D
R
1949
D
D
D
D
D
D
D
1950
D
D
D
D
D
D
D
1951
D
D
D
D
D
D
D
1952
D
D
D
D
R
D
D
1953
R
R
D
D
R
D
D
1954
R
R
D
D
R
D
D
1955
R
R
D
D
R
D
D
1956
R
R
R
D
R
D
D
1957
R
D
D
D
D
D
R
1958
R
D
D
D
D
D
R
1959
R
D
D
D
D
D
R
1960
R
D
D
D
D
D
R
1961
R
R
D
D
R
D
R
1962
R
R
D
D
R
R
R
1963
R
R
D
D
R
R
R
1964
R
R
D
D
R
R
R
1965
R
R
D
D
D
R
D
1966
R
R
D
D
D
R
D
1967
R
R
D
D
D
R
D
1968
R
R
D
D
D
R
D
1969
D
D
D
R
R
R
D
1970
D
D
D
R
R
R
D
1971
D
D
D
R
R
R
D
1972
D
D
D
R
R
R
D
1973
D
D
D
R
R
R
D
1974
D
D
D
R
R
R
D
1975
D
D
D
R
R
R
D
1976
D
D
D
R
R
R
D
1977
D
D
D
D
R
D
1978
D
D
D
D
R
D
1979
D
D
D
D
R
D
1980
D
D
D
D
R
D
1981
D
D
R
D
R
R
1982
D
D
R
D
R
R
1983
D
D
R
D
R
R
1984
D
D
R
D
R
R
1985
D
D
R
D
R
R
1986
D
D
R
D
R
R
1987
D
D
R
D
R
R
1988
D
D
R
D
R
R
1989
R
R
D
R
R
D
1990
R
R
D
R
R
D
1991
R
R
D
R
R
D
1992
R
R
D
R
R
D
1993
R
R
D
D
D
D
1994
R
R
D
D
D
D
1995
R
R
D
D
D
D
1996
R
R
D
D
D
D
1997
R
R
D
D
D
D
1998
R
R
D
D
D
D
1999
R
R
D
D
D
D
2000
R
R
D
D
D
D
2001
R
R
R
D
D
D
2002
R
R
R
D
D
D
2003
R
R
R
D
D
D
2004
R
R
R
D
D
D
2005
D
R
R
D
D
D
2006
D
R
R
D
D
D
2007
D
R
R
D
D
D
2008
D
R
R
D
D
D
2009
D
R
D
D
D
D
2010
D
R
D
D
D
D
2011
D
R
D
D
D
D
2012
D
R
D
D
D
D
2013
D
D
D
R
D
D
2014
D
D
D
R
D
D
2015
D
D
D
R
D
D
2016
D
D
D
R
D
D
2017
D
D
R
R
R
R
2018
D
D
R
R
R
R
2019
D
D
R
R
R
R
2020
D
D
R
R
R
R
2021
R
R
R
R
R
R
2022
R
R
R
R
R
R
2023
R
R
R
R
R
R

State Legislature

YearState SenateState House
1889
8 D, 8 R
25 D, 25 R
1890
8 D, 8 R
25 D, 25 R
1891
10 D, 6 R
28 R, 27 D
1892
10 D, 6 R
28 R, 27 D
1893
9 D, 7 R
26 D, 26 R, 3 Populist
1894
9 D, 7 R
26 D, 26 R, 3 Populist
1895
13 R, 5 D, 2 Populist, 1 Fusion
44 R, 14 Populist, 3 D
1896
13 R, 5 D, 2 Populist, 1 Fusion
44 R, 14 Populist, 3 D
1897
12 R, 8 D, 3 Populist
42 D, 18 Populist, 8 R
1898
12 R, 8 D, 3 Populist
42 D, 18 Populist, 8 R
1899
17 D, 6 R, 1 Populist
57 D, 9 R, 4 Silver R
1900
17 D, 6 R, 1 Populist
57 D, 9 R, 4 Silver R
1901
14 D, 9 R, 1 Populist
28 D, 23 R, 8 Labor, 6 Populist, 5 I D
1902
14 D, 9 R, 1 Populist
28 D, 23 R, 8 Labor, 6 Populist, 5 I D
1903
14 D, 12 R
47 R, 11 Labor, 8 D, 6 AT
1904
14 D, 12 R
47 R, 11 Labor, 8 D, 6 AT
1905
16 R, 10 D
38 R, 24 D, 7 Labor, 3 AT
1906
16 R, 10 D
38 R, 24 D, 7 Labor, 3 AT
1907
18 R, 9 D
57 R, 16 D
1908
18 R, 9 D
57 R, 16 D
1909
17 R, 10 D
38 D, 33 R
1910
17 R, 10 D
38 D, 33 R
1911
16 R, 12 D
42 D, 32 R
1912
16 R, 12 D
42 D, 32 R
1913
17 D, 13 R, 2 Prog.
49 D, 20 R, 16 Prog., 1 Silver
1914
17 D, 13 R, 2 Prog.
49 D, 20 R, 16 Prog., 1 Silver
1915
19 R, 16 D, 5 Prog., 1 I
55 D, 36 R, 3 Silver, 1 I
1916
19 R, 16 D, 5 Prog., 1 I
55 D, 36 R, 3 Silver, 1 I
1917
28 R, 13 D
49 D, 46 R
1918
28 R, 13 D
49 D, 46 R
1919
31 R, 12 D
65 R, 33 D
1920
31 R, 12 D
65 R, 33 D
1921
41 R, 13 D
98 R, 9 D, 1 I
1922
41 R, 13 D
98 R, 9 D, 1 I
1923
38 R, 16 D
56 R, 44 D
1924
38 R, 16 D
56 R, 44 D
1925
39 R, 16 D, 1 FL
66 R, 34 D, 2 FL
1926
39 R, 16 D, 1 FL
66 R, 34 D, 2 FL
1927
40 R, 15 D, 1 FL
61 R, 39 D, 2 FL
1928
40 R, 15 D, 1 FL
61 R, 39 D, 2 FL
1929
39 R, 16 D, 1 FL
69 R, 33 D
1930
39 R, 16 D, 1 FL
69 R, 33 D
1931
41 R, 15 D
59 R, 43 D
1932
41 R, 15 D
59 R, 43 D
1933
33 R, 22 D, 1 I
72 D, 30 R
1934
33 R, 22 D, 1 I
72 D, 30 R
1935
28 D, 27 R, 1 I
69 D, 33 R
1936
28 D, 27 R, 1 I
69 D, 33 R
1937
29 D, 27 R
81 D, 21 R
1938
29 D, 27 R
81 D, 21 R
1939
31 D, 25 R
58 D, 44 R
1940
31 D, 25 R
58 D, 44 R
1941
35 R, 21 D
55 D, 47 R
1942
35 R, 21 D
55 D, 47 R
1943
37 R, 19 D
51 R, 39 D
1944
37 R, 19 D
51 R, 39 D
1945
39 R, 17 D
53 R, 37 D
1946
39 R, 17 D
53 R, 37 D
1947
41 R, 15 D
58 R, 31 D, 1 I D
1948
41 R, 15 D
58 R, 31 D, 1 I D
1949
31 R, 23 D, 2 I
54 D, 36 R
1950
31 R, 23 D, 2 I
54 D, 36 R
1951
28 R, 26 D, 2 I
49 R, 41 D
1952
28 R, 26 D, 2 I
49 R, 41 D
1953
36 R, 20 D
62 R, 32 D
1954
36 R, 20 D
62 R, 32 D
1955
33 R, 23 D
49 D, 45 R
1956
33 R, 23 D
49 D, 45 R
1957
31 D, 25 R
59 D, 35 R
1958
31 D, 25 R
59 D, 35 R
1959
38 D, 17 R, 1 I
61 D, 31 R, 2 I
1960
38 D, 17 R, 1 I
61 D, 31 R, 2 I
1961
38 D, 17 R, 1 I
54 R, 40 D
1962
38 D, 17 R, 1 I
54 R, 40 D
1963
35 D, 21 R
57 R, 37 D
1964
35 D, 21 R
57 R, 37 D
1965
32 D, 24 R
56 D, 38 R
1966
32 D, 24 R
56 D, 38 R
1967
30 D, 25 R
64 R, 40 D
1968
30 D, 25 R
64 R, 40 D
1969
30 D, 25 R
58 R, 46 D
1970
30 D, 25 R
58 R, 46 D
1971
30 D, 25 R
55 R, 49 D
1972
30 D, 25 R
55 R, 49 D
1973
27 D, 23 R
54 D, 46 R
1974
27 D, 23 R
54 D, 46 R
1975
30 D, 20 R
67 D, 33 R
1976
30 D, 20 R
67 D, 33 R
1977
25 D, 25 R
57 D, 43 R
1978
25 D, 25 R
57 D, 43 R
1979
26 R, 24 D
55 D, 45 R
1980
26 R, 24 D
55 D, 45 R
1981
28 R, 22 D
57 R, 43 D
1982
28 R, 22 D
57 R, 43 D
1983
26 R, 24 D
55 D, 45 R
1984
26 R, 24 D
55 D, 45 R
1985
28 D, 22 R
50 D, 50 R
1986
28 D, 22 R
50 D, 50 R
1987
25 D, 25 R
51 R, 49 D
1988
25 D, 25 R
51 R, 49 D
1989
27 R, 23 D
52 D, 48 R
1990
27 R, 23 D
52 D, 48 R
1991
29 D, 21 R
61 D, 39 R
1992
29 D, 21 R
61 D, 39 R
1993
30 D, 20 R
53 R, 47 D
1994
30 D, 20 R
53 R, 47 D
1995
31 R, 19 D
67 R, 33 D
1996
31 R, 19 D
67 R, 33 D
1997
34 R, 16 D
65 R, 35 D
1998
34 R, 16 D
65 R, 35 D
1999
32 R, 18 D
59 R, 41 D
2000
32 R, 18 D
59 R, 41 D
2001
31 R, 19 D
58 R, 42 D
2002
31 R, 19 D
58 R, 42 D
2003
29 R, 21 D
53 R, 47 D
2004
29 R, 21 D
53 R, 47 D
2005
27 D, 23 R
50 D, 50 R
2006
27 D, 23 R
50 D, 50 R
2007
26 D, 24 R
50 R, 49 D, 1 C
2008
26 D, 24 R
50 R, 49 D, 1 C
2009
27 R, 23 D
50 D, 50 R
2010
27 R, 23 D
50 D, 50 R
2011
28 R, 22 D
68 R, 32 D
2012
28 R, 22 D
68 R, 32 D
2013
29 R, 21 D
61 R, 39 D
2014
29 R, 21 D
61 R, 39 D
2015
29 R, 21 D
59 R, 41 D
2016
29 R, 21 D
59 R, 41 D
2017
32 R, 18 D
59 R, 41 D
2018
32 R, 18 D
59 R, 41 D
2019
30 R, 20 D
58 R, 42 D
2020
30 R, 20 D
58 R, 42 D
2021
31 R, 19 D
67 R, 33 D
2022
31 R, 19 D
67 R, 33 D
2023
34 R, 16 D
68 R, 32 D

Data that I have

President

1892 (by county)
1896 (by county)
1900 (by county)
1904 (by county)
1908 (by county)
1912 (by county)
1916 (by county)
1920 (by county)
1924 (by county)
1928 (by county)
1932 (by county)
1936 (by county)
1940 (by county)
1944 (by county)
1948 (by county)
1952 (by county)
1956 (by county)
1960 (by county)
1964 (by county)
1968 (by county)
1972 (by county)
1976 (by county)
1980 (by county)
1984 (by county)
1988 (by county)
1992 (by county)
1996 (by county)
2000 (by county)
2004 (by county)
2008 (by county)
2012 (by county)
2016 (by county)
2020 (by county)

U.S. Senate

1912 (by county)
1914 (by county)
1918 (by county)
1922 (by county)
1924 (by county)
1928 (by county)
1930 (by county)
1934 (by county)
1934 Special (by county)
1936 (by county)
1940 (by county)
1942 (by county)
1946 (by county)
1948 (by county)
1952 (by county)
1954 (by county)
1958 (by county)
1960 (by county)
1964 (by county)
1966 (by county)
1970 (by county)
1972 (by county)
1976 (by county)
1978 (by county)
1982 (by county)
1984 (by county)
1988 (by county)
1990 (by county)
1992 (by county)
1996 (by county)
1998 (by county)
2002 (by county)
2004 (by county)
2008 (by county)
2010 (by county)
2014 (by county)
2016 (by county)
2020 (by county)

U.S. House

1890
1892
1894
1896
1898
1900
1902
1904
1906
1908
1910
1912
1914
1916
1918
1920
1922
1924
1926
1928
1930
1932
1934
1936
1938
1940
1942
1944
1946
1948
1950
1952
1954
1956
1958
1960
1962
1964
1966
1968
1970
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022

Governor

1876 (by county)
1878 (by county)
1880 (by county)
1882 (by county)
1884 (by county)
1886 (by county)
1888 (by county)
1892 (by county)
1896 (by county)
1900 (by county)
1904 (by county)
1908 (by county)
1912 (by county)
1916 (by county)
1920 (by county)
1924 (by county)
1928 (by county)
1932 (by county)
1936 (by county)
1940 (by county)
1944 (by county)
1948 (by county)
1952 (by county)
1956 (by county)
1960 (by county)
1964 (by county)
1968 (by county)
1972 (by county)
1976 (by county)
1980 (by county)
1984 (by county)
1988 (by county)
1992 (by county)
1996 (by county)
2000 (by county)
2004 (by county)
2008 (by county)
2012 (by county)
2016 (by county)
2020 (by county)

Lieutenant Governor

1876 (by county)
1878 (by county)
1880 (by county)
1882 (by county)
1884 (by county)
1886 (by county)
1888 (by county)
1892 (by county)
1896 (by county)
1900 (by county)
1904 (by county)
1908 (by county)
1912 (by county)
1916 (by county)
1920 (by county)
1924 (by county)
1928 (by county)
1932 (by county)
1936 (by county)
1940 (by county)
1944 (by county)
1948 (by county)
1952 (by county)
1956 (by county)
1960 (by county)
1964 (by county)

Secretary of State

1888 (by county)
1892 (by county)
1896 (by county)
1900 (by county)
1904 (by county)
1908 (by county)
1912 (by county)
1916 (by county)
1920 (by county)
1924 (by county)
1928 (by county)
1932 (by county)
1936 (by county)
1940 (by county)
1944 (by county)
1948 (by county)
1952 (by county)
1956 (by county)
1960 (by county)
1964 (by county)
1968 (by county)
1972 (by county)
1976 (by county)
1980 (by county)
1984 (by county)
1988 (by county)
1992 (by county)
1996 (by county)
2000 (by county)
2004 (by county)
2008 (by county)
2012 (by county)
2016 (by county)
2020 (by county)

Attorney General

1888 (by county)
1892 (by county)
1896 (by county)
1900 (by county)
1904 (by county)
1908 (by county)
1912 (by county)
1916 (by county)
1920 (by county)
1924 (by county)
1928 (by county)
1932 (by county)
1936 (by county)
1940 (by county)
1944 (by county)
1948 (by county)
1952 (by county)
1956 (by county)
1960 (by county)
1964 (by county)
1968 (by county)
1972 (by county)
1976 (by county)
1980 (by county)
1984 (by county)
1988 (by county)
1992 (by county)
1996 (by county)
2000 (by county)
2004 (by county)
2008 (by county)
2012 (by county)
2016 (by county)
2020 (by county)

Treasurer

1888 (by county)
1892 (by county)
1896 (by county)
1900 (by county)
1904 (by county)
1908 (by county)
1912 (by county)
1916 (by county)
1920 (by county)
1924 (by county)
1928 (by county)
1932 (by county)
1936 (by county)
1940 (by county)
1944 (by county)
1948 (by county)
1952 (by county)
1956 (by county)
1960 (by county)
1964 (by county)
1968 (by county)
1972 (by county)
1976 (by county)
1980 (by county)
1984 (by county)
1988 (by county)
1992 (by county)
1996 (by county)
2000 (by county)
2004 (by county)
2008 (by county)
2012 (by county)
2016 (by county)
2020 (by county)

Auditor

1888 (by county)
1892 (by county)
1896 (by county)
1900 (by county)
1904 (by county)
1908 (by county)
1912 (by county)
1916 (by county)
1920 (by county)
1924 (by county)
1928 (by county)
1932 (by county)
1936 (by county)
1940 (by county)
1944 (by county)
1948 (by county)
1952 (by county)
1956 (by county)
1960 (by county)
1964 (by county)
1968 (by county)
1972 (by county)
1976 (by county)
1980 (by county)
1984 (by county)
1988 (by county)
1992 (by county)
1996 (by county)
2000 (by county)
2004 (by county)
2008 (by county)
2012 (by county)
2016 (by county)
2020 (by county)

Sources

General Election Results – Montana. United States Election Atlas.

Party Affiliations in the State Legislatures: A Year by Year Summary, 1796-2006 [Michael J. Dubin]