akashic
1876–2024
Elections / 1948 · President · SD

Thomas E. Dewey carried South Dakota R+4.8.

Harry S. Truman (D) vs Thomas E. Dewey (R) in South Dakota, 1948. The state ran 9.3 points more Republican than the nation (D+4.5 nationally).

Nominees: Harry S. Truman (D) · Thomas E. Dewey (R) · Strom Thurmond (States' Rights Democratic)

South Dakota result
250,105 votes counted
Truman (D)
117,653
47.0%
Dewey (R)
129,651
51.8%
Thurmond + others
2,801
1.1%
Margin
R+4.8
1948 presidential election
South Dakota, 1948
DeweyR+4.8
1948 presidential margin by county for South Dakota — 1948 presidential electionA map of the constituent counties of South Dakota — 1948 presidential election, each outlined and filled by its 1948 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), seated within the faint outlines of the surrounding states.Aurora County, SD · D+9.3Beadle County, SD · D+8.8Bennett County, SD · D+22.4Bon Homme County, SD · R+4.7Brookings County, SD · R+15.4Brown County, SD · D+11.7Brule County, SD · D+21.5Buffalo County, SD · D+3.2Butte County, SD · R+23.3Campbell County, SD · R+57.0Charles Mix County, SD · D+26.1Clark County, SD · R+2.1Clay County, SD · R+3.4Codington County, SD · D+9.3Corson County, SD · TiedCuster County, SD · R+14.0Davison County, SD · D+15.0Day County, SD · D+12.5Deuel County, SD · R+1.2Dewey County, SD · R+8.2Douglas County, SD · R+27.7Edmunds County, SD · R+8.7Fall River County, SD · R+20.2Faulk County, SD · R+4.1Grant County, SD · D+2.0Gregory County, SD · D+2.0Haakon County, SD · R+18.0Hamlin County, SD · R+9.5Hand County, SD · R+1.3Hanson County, SD · D+5.1Harding County, SD · R+4.8Hughes County, SD · R+23.3Hutchinson County, SD · R+40.9Hyde County, SD · R+19.1Jackson County, SD · R+6.8Jerauld County, SD · R+10.5Jones County, SD · R+11.4Kingsbury County, SD · R+26.7Lake County, SD · R+14.9Lawrence County, SD · R+26.0Lincoln County, SD · R+20.3Lyman County, SD · R+4.7Marshall County, SD · D+9.1McCook County, SD · R+19.5McPherson County, SD · R+53.3Meade County, SD · R+9.9Mellette County, SD · TiedMiner County, SD · D+7.2Minnehaha County, SD · R+8.7Moody County, SD · R+1.8Oglala Lakota County, SD · D+11.1Pennington County, SD · R+12.8Perkins County, SD · R+12.7Potter County, SD · TiedRoberts County, SD · D+18.9Sanborn County, SD · D+2.7Spink County, SD · D+7.7Stanley County, SD · R+18.4Sully County, SD · R+17.5Todd County, SD · D+11.9Tripp County, SD · D+1.9Turner County, SD · R+33.3Union County, SD · D+0.7Walworth County, SD · R+3.0Yankton County, SD · TiedZiebach County, SD · D+4.1
How it voted
Share of the 1948 vote
Thomas E. Dewey ✓Republican51.8%129,651
Harry S. TrumanDemocratic47.0%117,653
OtherAll other candidates1.1%2,801
D+60
R+60
66 counties, each filled by 1948 D-vs-R margin. Hover any county for its result.
South Dakota's presidential margins
1892–2024, the 1948 contest in context
South Dakota's presidential marginsDemocratic-minus-Republican presidential margin from 1892 to 2024. Most recent: −29.2% in 2024.flipped R · 2004−29.2%DR18922024
South Dakota's presidential margins
YearMargin (D minus R)
1892−36.5%
1896+0.2%
1900−15.6%
1904−49.4%
1908−23.8%
1912+42.1%
1916+3.9%
1920−41.0%
1924−36.3%
1928−21.0%
1932+29.2%
1936+11.5%
1940−14.8%
1944−16.7%
1948−4.8%
1952−38.5%
1956−16.8%
1960−16.4%
1964+11.2%
1968−11.3%
1972−8.6%
1976−1.5%
1980−28.8%
1984−26.5%
1988−6.3%
1992−3.5%
1996−3.5%
2000+22.7%
2004−21.3%
2008−8.4%
2012−18.0%
2016−29.8%
2020−26.2%
2024−29.2%
County results — 1948
66 counties; every row links to the county's full page.
CountyWonMarginDemocraticRepublicanTotal
Aurora CountyD
+9.3%
1,2751,0562,347
Beadle CountyD
+8.8%
4,3723,6628,111
Bennett CountyD
+22.4%
7584771,252
Bon Homme CountyR
−4.7%
2,0772,2834,408
Brookings CountyR
−15.4%
2,9073,9756,926
Brown CountyD
+11.7%
7,1485,63212,972
Brule CountyD
+21.5%
1,6461,0562,744
Buffalo CountyD
+3.2%
334313652
Butte CountyR
−23.3%
1,0651,7262,842
Campbell CountyR
−57.0%
4101,5181,945
Charles Mix CountyD
+26.1%
3,0861,8004,935
Clark CountyR
−2.1%
1,5591,6253,212
Clay CountyR
−3.4%
2,0802,2284,361
Codington CountyD
+9.3%
4,0423,3497,441
Corson CountyO
+0.0%
1,1541,1542,325
Custer CountyR
−14.0%
9171,2172,148
Davison CountyD
+15.0%
4,0642,9967,128
Day CountyD
+12.5%
3,1462,4385,681
Deuel CountyR
−1.2%
1,3241,3572,719
Dewey CountyR
−8.2%
7338651,613
Douglas CountyR
−27.7%
7361,3012,042
Edmunds CountyR
−8.7%
1,2531,4932,765
Fall River CountyR
−20.2%
1,3482,0373,411
Faulk CountyR
−4.1%
9711,0542,047
Grant CountyD
+2.0%
2,0521,9724,060
Gregory CountyD
+2.0%
1,7931,7233,562
Haakon CountyR
−18.0%
5197531,300
Hamlin CountyR
−9.5%
1,3261,6082,979
Hand CountyR
−1.3%
1,3671,4022,778
Hanson CountyD
+5.1%
9538601,828
Harding CountyR
−4.8%
4795291,040
Hughes CountyR
−23.3%
1,0801,7392,831
Hutchinson CountyR
−40.9%
1,2092,9064,151
Hyde CountyR
−19.1%
5538171,379
Jackson CountyR
−6.8%
5446241,185
Jerauld CountyR
−10.5%
8761,0851,987
Jones CountyR
−11.4%
414522948
Kingsbury CountyR
−26.7%
1,3382,3323,728
Lake CountyR
−14.9%
2,0932,8374,982
Lawrence CountyR
−26.0%
2,2093,7786,045
Lincoln CountyR
−20.3%
1,8262,7714,656
Lyman CountyR
−4.7%
9049931,912
Marshall CountyD
+9.1%
1,7101,4193,198
McCook CountyR
−19.5%
1,3872,0643,471
McPherson CountyR
−53.3%
6112,0342,668
Meade CountyR
−9.9%
1,6812,0533,769
Mellette CountyO
+0.0%
482482977
Miner CountyD
+7.2%
1,3731,1882,587
Minnehaha CountyR
−8.7%
11,77014,04726,125
Moody CountyR
−1.8%
1,6301,6913,369
Oglala Lakota CountyD
+11.1%
8036411,454
Pennington CountyR
−12.8%
4,9296,39211,413
Perkins CountyR
−12.7%
1,0961,4242,587
Potter CountyR
−0.2%
1,0391,0442,101
Roberts CountyD
+18.9%
3,2772,2115,652
Sanborn CountyD
+2.7%
1,0469902,061
Spink CountyD
+7.7%
2,7022,3105,067
Stanley CountyR
−18.4%
359522887
Sully CountyR
−17.5%
405579992
Todd CountyD
+11.9%
7966251,438
Tripp CountyD
+1.9%
1,9181,8453,818
Turner CountyR
−33.3%
1,5143,0484,600
Union CountyD
+0.7%
2,2372,2054,465
Walworth CountyR
−3.0%
1,5131,6073,155
Yankton CountyD
+0.5%
2,9322,9045,893
Ziebach CountyD
+4.1%
503463980