| m. Sieradz, Precinct no. 20 |
| Vote on 05-12-2010 | |
| Office | Prezydent Miasta Sieradza |
| Precinct | Precinct no. 20 |
| Electoral Commission Regional Headquarters | Gimnazjum Nr 2 w Sieradzu, ul. Rycerska 4 |
| Number of electors | 1 062 |
| Number of dispensed ballot cards | 378 |
| Number of valid ballot cards | 378 |
| Number of votes valid | 371 |
| Number of votes invalid | 7 |
| Number of dispensed ballot cards for plenipotentiaries | 0 |
| Protocol date | 05-12-2010 22:24 |
| 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 | 188 | 50,67% | |
| 5 | Walczak Jacek | 45 | wyższe | Sieradz, submitted by KOMITET WYBORCZY PLATFORMA OBYWATELSKA RP, endorsed by Platforma Obywatelska RP, member of Platformy Obywatelskiej Rzeczypospolitej Polskiej | 183 | 49,33% | |
| Vote on 21-11-2010 | |
| Office | Prezydent Miasta Sieradza |
| Precinct | Precinct no. 20 |
| Electoral Commission Regional Headquarters | Gimnazjum Nr 2 w Sieradzu, ul. Rycerska 4 |
| Number of electors | 1 068 |
| Number of dispensed ballot cards | 499 |
| Number of valid ballot cards | 480 |
| Number of votes valid | 471 |
| Number of votes invalid | 9 |
| Number of dispensed ballot cards for plenipotentiaries | 0 |
| Protocol date | 22-11-2010 02:12 |
| 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 | 52 | 11,04% | |
| 2 | Krasiński Zbigniew Stanisław | 56 | wyższe | Sieradz, submitted by KOMITET WYBORCZY SOJUSZ LEWICY DEMOKRATYCZNEJ, endorsed by Sojusz Lewicy Demokratycznej, member of Sojuszu Lewicy Demokratycznej | 27 | 5,73% | |
| 3 | Mrozowska-Nieradko Barbara Elżbieta | 50 | wyższe | Sieradz, submitted by KOMITET WYBORCZY WYBORCÓW NASZ SIERADZ, not a member of any political party | 56 | 11,89% | |
| 4 | Owczarek Mirosław Antoni | 61 | zasadnicze zawodowe | Sieradz, submitted by KOMITET WYBORCZY WYBORCÓW "SOLIDARNI DLA SIERADZA", not a member of any political party | 151 | 32,06% | |
| 5 | Walczak Jacek | 45 | wyższe | Sieradz, submitted by KOMITET WYBORCZY PLATFORMA OBYWATELSKA RP, endorsed by Platforma Obywatelska RP, member of Platformy Obywatelskiej Rzeczypospolitej Polskiej | 185 | 39,28% | |