| m. Sieradz, Precinct no. 12 |
| Vote on 05-12-2010 | |
| Office | Prezydent Miasta Sieradza |
| Precinct | Precinct no. 12 |
| Electoral Commission Regional Headquarters | Przedszkole Nr 15 w Sieradzu, ul. Stacheckiego-Koliby 3 |
| Number of electors | 1 848 |
| Number of dispensed ballot cards | 528 |
| Number of valid ballot cards | 528 |
| Number of votes valid | 520 |
| Number of votes invalid | 8 |
| Number of dispensed ballot cards for plenipotentiaries | 0 |
| Protocol date | 05-12-2010 22:29 |
| No. | Family name and given names | Age | Education | Address, party membership and endorsements | Number of votes | Votes % | |
| 4 | Owczarek Mirosław Antoni | 61 | zasadnicze zawodowe | Sieradz, submitted by KOMITET WYBORCZY WYBORCÓW "SOLIDARNI DLA SIERADZA", not a member of any political party | 183 | 35,19% | |
| 5 | Walczak Jacek | 45 | wyższe | Sieradz, submitted by KOMITET WYBORCZY PLATFORMA OBYWATELSKA RP, endorsed by Platforma Obywatelska RP, member of Platformy Obywatelskiej Rzeczypospolitej Polskiej | 337 | 64,81% | |
| Vote on 21-11-2010 | |
| Office | Prezydent Miasta Sieradza |
| Precinct | Precinct no. 12 |
| Electoral Commission Regional Headquarters | Przedszkole Nr 15 w Sieradzu, ul. Stacheckiego-Koliby 3 |
| Number of electors | 1 854 |
| Number of dispensed ballot cards | 781 |
| Number of valid ballot cards | 781 |
| Number of votes valid | 765 |
| Number of votes invalid | 16 |
| Number of dispensed ballot cards for plenipotentiaries | 0 |
| Protocol date | 22-11-2010 04:33 |
| No. | Family name and given names | Age | Education | Address, party membership and endorsements | Number of votes | Votes % | |
| 1 | Gotkowicz Kazimiera Marianna | 50 | wyższe | Sieradz, submitted by KOMITET WYBORCZY PRAWO I SPRAWIEDLIWOŚĆ, endorsed by Prawo i Sprawiedliwość, member of Prawa i Sprawiedliwości | 123 | 16,08% | |
| 2 | Krasiński Zbigniew Stanisław | 56 | wyższe | Sieradz, submitted by KOMITET WYBORCZY SOJUSZ LEWICY DEMOKRATYCZNEJ, endorsed by Sojusz Lewicy Demokratycznej, member of Sojuszu Lewicy Demokratycznej | 91 | 11,90% | |
| 3 | Mrozowska-Nieradko Barbara Elżbieta | 50 | wyższe | Sieradz, submitted by KOMITET WYBORCZY WYBORCÓW NASZ SIERADZ, not a member of any political party | 97 | 12,68% | |
| 4 | Owczarek Mirosław Antoni | 61 | zasadnicze zawodowe | Sieradz, submitted by KOMITET WYBORCZY WYBORCÓW "SOLIDARNI DLA SIERADZA", not a member of any political party | 118 | 15,42% | |
| 5 | Walczak Jacek | 45 | wyższe | Sieradz, submitted by KOMITET WYBORCZY PLATFORMA OBYWATELSKA RP, endorsed by Platforma Obywatelska RP, member of Platformy Obywatelskiej Rzeczypospolitej Polskiej | 336 | 43,92% | |