Janata Dal (United) (JD(U)), founded in 1999, contested the 1999 Lok Sabha election across multiple states and won 21 seats. The following summary presents its overall electoral performance, including seats contested, votes received and vote share.
| JD(U) Overall performance | Result |
|---|---|
| Constituencies contested | 60 |
| Seats won | 21 |
| Total votes received | 1,12,82,084 |
| Vote share in contested constituencies | 28.01% |
| Overall vote share | 3.1% |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 23 | 18 | 20.77 | 45.91 | 74,05,701 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 10 | 3 | 13.28 | 37.22 | 29,67,576 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 2 | 0 | 0.59 | 24.45 | 3,21,294 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 2 | 0 | 1.6 | 19.98 | 2,64,440 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 5 | 0 | 1.35 | 5.27 | 2,06,950 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 9 | 0 | 0.4 | 1.07 | 53,957 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 1 | 0 | 3.19 | 6.32 | 28,507 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 1 | 0 | 43.28 | 43.28 | 12,924 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 2 | 0 | 0.1 | 0.59 | 9,079 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 2 | 0 | 0.02 | 0.44 | 5,561 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 2 | 0 | 0.03 | 0.33 | 3,902 |
| Seats Contested | Seats Won | Vote Share (%) | Vote Share on Contested (%) | Total Votes Received |
|---|---|---|---|---|
| 1 | 0 | 0.14 | 2.13 | 2,193 |