| | First party | Second party | Third party |
|---|
| | | | | | Leader | Edvard Valpas-Hänninen | | |
|---|
| Party | SDP | Finnish | Young Finnish |
|---|
| Last election | 38.40%, 83 seats | 25.44%, 55 seats | 14.23%, 26 seats |
|---|
| Seats won | 84 | 48 | 29 |
|---|
| Seat change | 1 | 7 | 3 |
|---|
| Popular vote | 337,685 | 199,920 | 122,770 |
|---|
| Percentage | 39.89% | 23.62% | 14.50% |
|---|
| Swing | 1.49pp | 1.82pp | 0.27pp |
|---|
| | | Fourth party | Fifth party | Sixth party |
|---|
| | | | | | Leader | Axel Lille | Otto Karhi | Antti Kaarne |
|---|
| Party | RKP | Agrarian | SKrTL |
|---|
| Last election | 12.74%, 24 seats | 6.31%, 10 seats | 2.33%, 2 seats |
|---|
| Seats won | 25 | 13 | 1 |
|---|
| Seat change | 1 | 3 | 1 |
|---|
| Popular vote | 104,191 | 56,943 | 23,259 |
|---|
| Percentage | 12.31% | 6.73% | 2.75% |
|---|
| Swing | 0.43pp | 0.34pp | 0.42pp |
|---|
|
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