| Niesiołowski Stefan Konstanty | ||||
| Information about candidate to the Sejm | ||||
| committee | Profession | Resident of | Endorsement | Constituency number |
| Komitet Wyborczy Platforma Obywatelska RP | biolog | Łódź | member of Platforma Obywatelska RP | 8 |
| Number of votes for candidate | Percentage of valid votes in the constituency | Number of votes for the list | Percentage of votes cast for the candidate in relation to the votes on the list | Mandate |
| 36 993 | 11,12% | 148 970 | 24,83% | Yes |
| Results of voting in Senate Constituency No. 8 divided into precincts | ||||||
| No. | Address | Number of votes | Percentage of valid votes | Number of votes for the list | Percentage of votes in the list | |
| pow. gorzowski | 2 133 | 10,41% | 8 686 | 24,56% | ||
| pow. krośnieński | 1 777 | 10,89% | 6 918 | 25,69% | ||
| pow. międzyrzecki | 2 507 | 13,87% | 7 238 | 34,64% | ||
| pow. nowosolski | 2 122 | 7,76% | 12 608 | 16,83% | ||
| pow. słubicki | 1 670 | 12,08% | 6 397 | 26,11% | ||
| pow. strzelecko-drezdenecki | 1 259 | 8,98% | 6 380 | 19,73% | ||
| pow. sulęciński | 490 | 4,77% | 4 710 | 10,40% | ||
| pow. świebodziński | 2 247 | 12,52% | 7 777 | 28,89% | ||
| pow. zielonogórski | 3 820 | 12,70% | 13 510 | 28,28% | ||
| pow. żagański | 2 301 | 9,75% | 9 595 | 23,98% | ||
| pow. żarski | 3 016 | 10,13% | 13 527 | 22,30% | ||
| pow. wschowski | 859 | 7,60% | 4 849 | 17,71% | ||
| m. npp Gorzów Wielkopolski | 4 921 | 10,16% | 21 729 | 22,65% | ||
| m. npp Zielona Góra | 7 871 | 15,39% | 25 046 | 31,43% | ||
