Summary of the 2 November 2004 United States Senate election results
| Parties |
Breakdown |
Total Seats |
Popular Vote |
| Up |
Elected |
Not Up |
2002 |
2004 |
+/- |
Vote |
% |
|
Republican Party |
15 |
19 |
36 |
51 |
55 |
+4 |
39,920,562 |
45.3% |
|
Democratic Party |
19 |
15 |
29 |
48 |
44 |
-4 |
44,754,618 |
50.8% |
|
Independent |
0 |
0 |
1 |
1 |
1 |
0 |
186,231 |
0.2% |
|
Libertarian Party |
- |
- |
- |
- |
- |
- |
754,861 |
0.9% |
|
Constitution Party |
- |
- |
- |
- |
- |
- |
301,402 |
0.3% |
|
Independence Party |
- |
- |
- |
- |
- |
- |
220,121 |
0.2% |
|
Green Party |
- |
- |
- |
- |
- |
- |
157,533 |
0.2% |
|
Reform Party |
- |
- |
- |
- |
- |
- |
22,461 |
0.0% |
|
Socialist Workers Party |
- |
- |
- |
- |
- |
- |
16,685 |
0.0% |
|
Other parties |
- |
- |
- |
- |
- |
- |
1,762,873 |
2.0% |
| Total |
34 |
34 |
66 |
100 |
100 |
0 |
88,097,347 |
100.0% |
| Source: Election Statistics - Office of the Clerk |
