Party Flips1936 → 1940
Counties That Flipped in 1940
Franklin D. Roosevelt vs Wendell Willkie
713 counties changed parties between 1936 and 1940—699 flipped Republican and 14 flipped Democratic.
699
Flipped to Republican
14
Flipped to Democratic
Flipped Republican (699)
Washington County
TX
R+96.3
swing
D+83.6→R+12.6
McIntosh County
ND
R+95.2
swing
D+11.9→R+83.3
Oliver County
ND
R+94.9
swing
D+27.8→R+67.2
Mercer County
ND
R+92.5
swing
D+21.6→R+70.9
Grant County
ND
R+87.6
swing
D+24.2→R+63.4
Emmons County
ND
R+86.5
swing
D+31.2→R+55.2
Comal County
TX
R+85.7
swing
D+48.7→R+37.0
Kenedy County
TX
R+80.7
swing
D+52.4→R+28.3
Logan County
ND
R+78.2
swing
D+10.8→R+67.4
Morton County
ND
R+77.4
swing
D+46.4→R+31.0
Calumet County
WI
R+77.1
swing
D+38.3→R+38.9
Sibley County
MN
R+76.2
swing
D+29.0→R+47.1
Stark County
ND
R+74.8
swing
D+39.3→R+35.5
Sheridan County
ND
R+74.3
swing
D+11.3→R+63.0
Brown County
MN
R+72.7
swing
D+38.6→R+34.1
Lee County
TX
R+71.3
swing
D+61.9→R+9.3
Hettinger County
ND
R+68.9
swing
D+11.9→R+57.0
Kidder County
ND
R+66.1
swing
D+21.1→R+45.0
Dunn County
ND
R+66.0
swing
D+45.1→R+20.9
Wells County
ND
R+62.8
swing
D+34.9→R+27.8
Ozaukee County
WI
R+62.5
swing
D+48.1→R+14.3
Cuming County
NE
R+61.0
swing
D+14.4→R+46.6
San Juan County
CO
R+60.2
swing
D+51.3→R+8.9
Stearns County
MN
R+59.6
swing
D+33.2→R+26.4
Dodge County
WI
R+59.1
swing
D+35.2→R+23.9
Washington County
WI
R+57.8
swing
D+29.3→R+28.5
Kewaunee County
WI
R+57.8
swing
D+51.3→R+6.5
Pierce County
ND
R+56.9
swing
D+33.4→R+23.6
McLeod County
MN
R+56.8
swing
D+18.7→R+38.1
Billings County
ND
R+56.7
swing
D+32.5→R+24.3
Slope County
ND
R+55.3
swing
D+39.8→R+15.5
Putnam County
OH
R+55.0
swing
D+13.1→R+42.0
Wabasha County
MN
R+55.0
swing
D+19.0→R+36.1
Stanton County
NE
R+54.9
swing
D+23.4→R+31.5
Burleigh County
ND
R+54.5
swing
D+39.8→R+14.7
Martin County
MN
R+54.4
swing
D+34.6→R+19.8
Ellis County
KS
R+54.3
swing
D+49.7→R+4.7
McHenry County
ND
R+54.2
swing
D+27.2→R+27.0
Scott County
MN
R+54.1
swing
D+35.6→R+18.6
McLean County
ND
R+54.1
swing
D+33.3→R+20.8
Adams County
WA
R+52.2
swing
D+48.4→R+3.8
Sioux County
ND
R+51.3
swing
D+17.5→R+33.7
Henry County
OH
R+50.6
swing
D+12.8→R+37.9
Plymouth County
IA
R+49.9
swing
D+16.3→R+33.6
Nicollet County
MN
R+49.8
swing
D+25.4→R+24.4
Shawano County
WI
R+49.8
swing
D+40.1→R+9.6
Deuel County
NE
R+49.4
swing
D+15.1→R+34.3
Gosper County
NE
R+49.3
swing
D+26.4→R+22.9
Mercer County
OH
R+48.8
swing
D+27.4→R+21.4
Stutsman County
ND
R+48.5
swing
D+30.3→R+18.2
Bremer County
IA
R+48.4
swing
D+21.7→R+26.7
Burke County
ND
R+48.4
swing
D+30.5→R+18.0
Green Lake County
WI
R+48.3
swing
D+13.3→R+35.0
Jefferson County
NE
R+48.1
swing
D+19.4→R+28.7
Platte County
NE
R+47.9
swing
D+35.7→R+12.1
Webster County
NE
R+47.7
swing
D+11.4→R+36.4
Bottineau County
ND
R+47.4
swing
D+35.7→R+11.7
Banner County
NE
R+47.0
swing
D+13.8→R+33.1
Houston County
MN
R+47.0
swing
D+7.5→R+39.5
Clark County
WI
R+46.6
swing
D+13.2→R+33.4
Guadalupe County
TX
R+46.3
swing
D+40.0→R+6.2
Pierce County
NE
R+46.2
swing
D+7.6→R+38.6
Wright County
MN
R+46.0
swing
D+11.2→R+34.8
Cheyenne County
NE
R+45.9
swing
D+35.5→R+10.4
Cedar County
NE
R+45.8
swing
D+20.4→R+25.3
Scotts Bluff County
NE
R+45.6
swing
D+17.2→R+28.4
Fond du Lac County
WI
R+45.5
swing
D+21.8→R+23.7
Sheridan County
NE
R+45.4
swing
D+11.6→R+33.7
Ida County
IA
R+45.0
swing
D+29.3→R+15.7
Jefferson County
WI
R+44.9
swing
D+32.0→R+12.9
Lincoln County
WI
R+44.7
swing
D+26.0→R+18.6
LaMoure County
ND
R+44.6
swing
D+16.4→R+28.3
Chase County
NE
R+44.4
swing
D+17.9→R+26.5
Le Sueur County
MN
R+44.4
swing
D+25.1→R+19.3
Marathon County
WI
R+44.3
swing
D+39.0→R+5.2
Redwood County
MN
R+43.9
swing
D+18.7→R+25.2
Perkins County
NE
R+43.9
swing
D+29.4→R+14.6
Sioux County
NE
R+43.9
swing
D+17.0→R+26.9
Barnes County
ND
R+43.6
swing
D+27.9→R+15.7
Ellis County
OK
R+43.5
swing
D+30.4→R+13.2
Cheyenne County
KS
R+43.5
swing
D+14.8→R+28.8
Faribault County
MN
R+43.4
swing
D+18.6→R+24.8
Rock County
MN
R+43.4
swing
D+23.9→R+19.4
Door County
WI
R+43.3
swing
D+10.5→R+32.8
Thayer County
NE
R+43.3
swing
D+12.9→R+30.4
Trego County
KS
R+43.2
swing
D+27.4→R+15.8
Wayne County
NE
R+43.2
swing
D+3.8→R+39.4
Douglas County
NV
R+43.2
swing
D+14.8→R+28.4
Scott County
KS
R+43.0
swing
D+27.3→R+15.7
Jerome County
ID
R+43.0
swing
D+28.5→R+14.5
Outagamie County
WI
R+42.9
swing
D+24.4→R+18.5
Russell County
KS
R+42.9
swing
D+25.0→R+17.9
Adams County
ND
R+42.7
swing
D+23.9→R+18.8
Waupaca County
WI
R+42.5
swing
D+1.6→R+40.9
Blue Earth County
MN
R+42.5
swing
D+18.3→R+24.1
Dawes County
NE
R+42.2
swing
D+13.7→R+28.5
Franklin County
NE
R+42.1
swing
D+16.0→R+26.2
Hodgeman County
KS
R+42.0
swing
D+19.6→R+22.4
Sheridan County
KS
R+41.9
swing
D+17.4→R+24.5