Party Flips1936 → 1940
Counties That Flipped in 1940
Franklin D. Roosevelt vs Wendell Willkie
714 counties changed parties between 1936 and 1940—700 flipped Republican and 14 flipped Democratic.
700
Flipped to Republican
14
Flipped to Democratic
Flipped Republican (700)
Washington County, Texas
TX
R+96.3
swing
D+83.6→R+12.6
McIntosh County, North Dakota
ND
R+95.2
swing
D+11.9→R+83.3
Oliver County, North Dakota
ND
R+94.9
swing
D+27.8→R+67.2
Mercer County, North Dakota
ND
R+92.5
swing
D+21.6→R+70.9
Grant County, North Dakota
ND
R+87.6
swing
D+24.2→R+63.4
Emmons County, North Dakota
ND
R+86.5
swing
D+31.3→R+55.2
Comal County, Texas
TX
R+85.7
swing
D+48.7→R+37.0
Kenedy County, Texas
TX
R+80.7
swing
D+52.4→R+28.3
Logan County, North Dakota
ND
R+78.2
swing
D+10.8→R+67.4
Morton County, North Dakota
ND
R+77.4
swing
D+46.4→R+31.0
Calumet County, Wisconsin
WI
R+77.1
swing
D+38.3→R+38.9
Sibley County, Minnesota
MN
R+76.2
swing
D+29.0→R+47.1
Stark County, North Dakota
ND
R+74.8
swing
D+39.3→R+35.5
Sheridan County, North Dakota
ND
R+74.3
swing
D+11.3→R+63.0
Brown County, Minnesota
MN
R+72.7
swing
D+38.5→R+34.1
Lee County, Texas
TX
R+71.3
swing
D+62.0→R+9.3
Hettinger County, North Dakota
ND
R+68.9
swing
D+11.9→R+57.0
Kidder County, North Dakota
ND
R+66.1
swing
D+21.1→R+45.0
Dunn County, North Dakota
ND
R+66.0
swing
D+45.1→R+20.9
Wells County, North Dakota
ND
R+62.8
swing
D+34.9→R+27.9
Ozaukee County, Wisconsin
WI
R+62.5
swing
D+48.1→R+14.3
Cuming County, Nebraska
NE
R+61.0
swing
D+14.4→R+46.6
San Juan County, Colorado
CO
R+60.2
swing
D+51.3→R+8.9
Stearns County, Minnesota
MN
R+59.6
swing
D+33.2→R+26.4
Dodge County, Wisconsin
WI
R+59.1
swing
D+35.2→R+23.9
Washington County, Wisconsin
WI
R+57.8
swing
D+29.3→R+28.5
Kewaunee County, Wisconsin
WI
R+57.8
swing
D+51.3→R+6.5
Pierce County, North Dakota
ND
R+56.9
swing
D+33.4→R+23.6
McLeod County, Minnesota
MN
R+56.8
swing
D+18.7→R+38.1
Billings County, North Dakota
ND
R+56.7
swing
D+32.5→R+24.3
Slope County, North Dakota
ND
R+55.3
swing
D+39.8→R+15.5
Putnam County, Ohio
OH
R+55.0
swing
D+13.1→R+42.0
Wabasha County, Minnesota
MN
R+55.0
swing
D+19.0→R+36.0
Stanton County, Nebraska
NE
R+54.9
swing
D+23.4→R+31.5
Burleigh County, North Dakota
ND
R+54.5
swing
D+39.8→R+14.7
Martin County, Minnesota
MN
R+54.4
swing
D+34.6→R+19.8
Ellis County, Kansas
KS
R+54.3
swing
D+49.6→R+4.7
McHenry County, North Dakota
ND
R+54.2
swing
D+27.1→R+27.0
Scott County, Minnesota
MN
R+54.1
swing
D+35.6→R+18.6
McLean County, North Dakota
ND
R+54.1
swing
D+33.3→R+20.8
Adams County, Washington
WA
R+52.2
swing
D+48.4→R+3.8
Sioux County, North Dakota
ND
R+51.3
swing
D+17.6→R+33.7
Henry County, Ohio
OH
R+50.7
swing
D+12.8→R+37.9
Plymouth County, Iowa
IA
R+49.9
swing
D+16.3→R+33.6
Nicollet County, Minnesota
MN
R+49.8
swing
D+25.4→R+24.4
Shawano County, Wisconsin
WI
R+49.8
swing
D+40.1→R+9.7
Deuel County, Nebraska
NE
R+49.4
swing
D+15.1→R+34.3
Gosper County, Nebraska
NE
R+49.3
swing
D+26.4→R+22.9
Mercer County, Ohio
OH
R+48.8
swing
D+27.4→R+21.4
Stutsman County, North Dakota
ND
R+48.5
swing
D+30.3→R+18.2
Bremer County, Iowa
IA
R+48.4
swing
D+21.7→R+26.7
Burke County, North Dakota
ND
R+48.4
swing
D+30.5→R+18.0
Green Lake County, Wisconsin
WI
R+48.3
swing
D+13.3→R+35.0
Jefferson County, Nebraska
NE
R+48.1
swing
D+19.4→R+28.7
Platte County, Nebraska
NE
R+47.9
swing
D+35.7→R+12.1
Webster County, Nebraska
NE
R+47.7
swing
D+11.4→R+36.4
Bottineau County, North Dakota
ND
R+47.4
swing
D+35.7→R+11.7
Banner County, Nebraska
NE
R+47.0
swing
D+13.8→R+33.1
Houston County, Minnesota
MN
R+47.0
swing
D+7.5→R+39.5
Clark County, Wisconsin
WI
R+46.6
swing
D+13.2→R+33.4
Guadalupe County, Texas
TX
R+46.3
swing
D+40.0→R+6.2
Pierce County, Nebraska
NE
R+46.2
swing
D+7.6→R+38.6
Wright County, Minnesota
MN
R+46.0
swing
D+11.2→R+34.8
Cheyenne County, Nebraska
NE
R+45.9
swing
D+35.5→R+10.4
Cedar County, Nebraska
NE
R+45.8
swing
D+20.4→R+25.3
Scotts Bluff County, Nebraska
NE
R+45.6
swing
D+17.2→R+28.4
Fond du Lac County, Wisconsin
WI
R+45.5
swing
D+21.8→R+23.7
Sheridan County, Nebraska
NE
R+45.4
swing
D+11.6→R+33.7
Ida County, Iowa
IA
R+45.0
swing
D+29.3→R+15.7
Jefferson County, Wisconsin
WI
R+44.9
swing
D+32.0→R+12.9
Lincoln County, Wisconsin
WI
R+44.7
swing
D+26.0→R+18.6
LaMoure County, North Dakota
ND
R+44.6
swing
D+16.4→R+28.3
Chase County, Nebraska
NE
R+44.4
swing
D+17.9→R+26.5
Le Sueur County, Minnesota
MN
R+44.4
swing
D+25.1→R+19.3
Marathon County, Wisconsin
WI
R+44.3
swing
D+39.0→R+5.2
Redwood County, Minnesota
MN
R+43.9
swing
D+18.7→R+25.2
Perkins County, Nebraska
NE
R+43.9
swing
D+29.4→R+14.6
Sioux County, Nebraska
NE
R+43.9
swing
D+17.0→R+26.9
Barnes County, North Dakota
ND
R+43.6
swing
D+27.9→R+15.7
Ellis County, Oklahoma
OK
R+43.5
swing
D+30.4→R+13.2
Cheyenne County, Kansas
KS
R+43.5
swing
D+14.8→R+28.8
Rock County, Minnesota
MN
R+43.4
swing
D+23.9→R+19.4
Faribault County, Minnesota
MN
R+43.4
swing
D+18.6→R+24.8
Door County, Wisconsin
WI
R+43.3
swing
D+10.5→R+32.8
Thayer County, Nebraska
NE
R+43.3
swing
D+12.9→R+30.4
Trego County, Kansas
KS
R+43.2
swing
D+27.4→R+15.8
Douglas County, Nevada
NV
R+43.2
swing
D+14.8→R+28.4
Wayne County, Nebraska
NE
R+43.2
swing
D+3.8→R+39.4
Scott County, Kansas
KS
R+43.0
swing
D+27.3→R+15.7
Jerome County, Idaho
ID
R+43.0
swing
D+28.5→R+14.5
Outagamie County, Wisconsin
WI
R+42.9
swing
D+24.4→R+18.5
Russell County, Kansas
KS
R+42.9
swing
D+25.0→R+17.9
Adams County, North Dakota
ND
R+42.7
swing
D+23.9→R+18.8
Waupaca County, Wisconsin
WI
R+42.5
swing
D+1.6→R+40.9
Blue Earth County, Minnesota
MN
R+42.5
swing
D+18.3→R+24.1
Dawes County, Nebraska
NE
R+42.2
swing
D+13.7→R+28.5
Franklin County, Nebraska
NE
R+42.1
swing
D+16.0→R+26.1
Hodgeman County, Kansas
KS
R+42.0
swing
D+19.6→R+22.4
Sumter County, South Carolina
SC
0
swing
D+97.3→Even