1948 United States Senate election in Minnesota

1948 United States Senate election in Minnesota
	County results; Humphrey: 50–60% 60–70% 70–80% ; Ball: 50–60% 60–70%
U.S. senator before election; Joseph H. Ball; Republican	Elected U.S. Senator ; Hubert H. Humphrey; Democratic (DFL)

The 1948 United States Senate election in Minnesota took place on November 2, 1948. It was the first election held for Minnesota's Class 2 seat in the United States Senate since the Minnesota Democratic Party and the Farmer-Labor Party of Minnesota merged in 1944 to form the Minnesota Democratic-Farmer-Labor Party. Democratic Mayor of Minneapolis and future Vice President Hubert H. Humphrey defeated incumbent Republican Joseph H. Ball, who sought a third term in the Senate. This is the first time a Democrat won a Senate seat in Minnesota through a popular vote election, as they last held a seat in 1901, and last won this seat in 1859.

Democratic–Farmer-Labor primary

Democratic primary election results^[1]
Party		Candidate	Votes	%
	Democratic (DFL)	Hubert H. Humphrey	204,175	89.07%
	Democratic (DFL)	James M. Shields	25,051	10.93%
Total votes			229,226	100.00%

Republican primary election results^[1]
Party		Candidate	Votes	%
	Republican	Joseph H. Ball (Incumbent)	269,863	79.42%
	Republican	Earl L. Miller	51,801	15.26%
	Republican	Lenore Irene Bussmann	18,060	5.32%
Total votes			339,455	100.00%

General election results^[2]
Party		Candidate	Votes	%
	Democratic (DFL)	Hubert H. Humphrey	729,494	59.78%
	Republican	Joseph H. Ball (Incumbent)	485,801	39.81%
	Socialist Workers	Vincent R. Dunne	4,951	0.41%
Total votes			1,220,246	100.00%
Majority			243,693	19.97%
	Democratic (DFL) gain from Republican