The 2024 Senate map

33 Senate contests were decided in 2024: Democrats won 17, Republicans 14, independents and others 2. Every contest below links to its page with the state's full Senate history.

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Cycle summary

Wins by party — seats decided this cycle, not the resulting chamber balance.

Contests

33

Democratic wins

17

Republican wins

14

Other wins

2

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Every contest

Statewide totals; candidate-level detail joins when the raw store is re-fetched with names.

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State	Won	Margin	Democratic	Republican	Total
Arizona	D	+2.4%	1,676,335	1,595,761	3,347,964
California	D	+17.7%	9,036,252	6,312,594	15,348,846
Connecticut	D	+16.1%	953,646	678,256	1,708,259
Delaware	D	+17.1%	283,298	197,753	500,606
Florida	R	−12.8%	4,603,077	5,977,706	10,757,428
Hawaii	D	+32.7%	324,194	160,075	501,763
Indiana	R	−19.9%	1,097,061	1,659,416	2,829,897
Massachusetts	D	+19.8%	2,041,668	1,365,440	3,413,329
Maryland	D	+11.8%	1,650,912	1,294,344	3,021,378
Maine	O	−23.8%	88,875	284,434	821,072
Michigan	D	+0.3%	2,712,686	2,693,680	5,577,187
Minnesota	D	+15.7%	1,792,441	1,291,712	3,189,323
Missouri	R	−13.7%	1,243,728	1,651,907	2,972,559
Mississippi	R	−25.6%	451,981	763,420	1,215,401
Montana	R	−7.1%	276,305	319,682	607,262
North Dakota	R	−32.9%	121,602	241,569	364,327
Nebraska	R	−53.2%	0	499,124	938,336
New Jersey	D	+9.6%	2,161,491	1,773,589	4,031,795
New Mexico	D	+10.1%	497,333	405,978	903,311
Nevada	D	+1.6%	701,105	677,046	1,464,728
New York	D	+18.3%	4,711,669	3,246,690	8,011,270
Ohio	R	−3.6%	2,650,949	2,857,383	5,704,620
Pennsylvania	R	−0.2%	3,384,180	3,399,295	6,963,137
Rhode Island	D	+20.0%	294,665	196,039	491,948
Tennessee	R	−29.6%	1,027,461	1,918,743	3,007,608
Texas	R	−8.5%	5,031,249	5,990,741	11,291,854
Utah	R	−30.8%	464,515	914,700	1,463,509
Virginia	D	+8.9%	2,417,115	2,019,911	4,445,535
Vermont	O	−32.0%	0	116,512	363,549
Washington	D	+18.5%	2,252,577	1,549,187	3,812,391
Wisconsin	D	+0.8%	1,672,777	1,643,996	3,390,787
West Virginia	R	−41.0%	207,548	514,079	747,717
Wyoming	R	−51.0%	63,727	198,418	264,162