 
| m. Sieradz, Precinct no. 11 | 
| Vote on 05-12-2010 | |
| Office | Prezydent Miasta Sieradza | 
| Precinct | Precinct no. 11 | 
| Electoral Commission Regional Headquarters | Przedszkole Nr 15 w Sieradzu, ul. Stacheckiego-Koliby 3 | 
| Number of electors | 1 832 | 
| Number of dispensed ballot cards | 597 | 
| Number of valid ballot cards | 597 | 
| Number of votes valid | 595 | 
| Number of votes invalid | 2 | 
| Number of dispensed ballot cards for plenipotentiaries | 0 | 
| Protocol date | 05-12-2010 22:22 | 
| 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 | 201 | 33,78% | |
| 5 | Walczak Jacek | 45 | wyższe | Sieradz, submitted by KOMITET WYBORCZY PLATFORMA OBYWATELSKA RP, endorsed by Platforma Obywatelska RP, member of Platformy Obywatelskiej Rzeczypospolitej Polskiej | 394 | 66,22% | |
| Vote on 21-11-2010 | |
| Office | Prezydent Miasta Sieradza | 
| Precinct | Precinct no. 11 | 
| Electoral Commission Regional Headquarters | Przedszkole Nr 15 w Sieradzu, ul. Stacheckiego-Koliby 3 | 
| Number of electors | 1 831 | 
| Number of dispensed ballot cards | 828 | 
| Number of valid ballot cards | 827 | 
| Number of votes valid | 816 | 
| Number of votes invalid | 11 | 
| Number of dispensed ballot cards for plenipotentiaries | 0 | 
| Protocol date | 22-11-2010 01:56 | 
| 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 | 150 | 18,38% | |
| 2 | Krasiński Zbigniew Stanisław | 56 | wyższe | Sieradz, submitted by KOMITET WYBORCZY SOJUSZ LEWICY DEMOKRATYCZNEJ, endorsed by Sojusz Lewicy Demokratycznej, member of Sojuszu Lewicy Demokratycznej | 94 | 11,52% | |
| 3 | Mrozowska-Nieradko Barbara Elżbieta | 50 | wyższe | Sieradz, submitted by KOMITET WYBORCZY WYBORCÓW NASZ SIERADZ, not a member of any political party | 122 | 14,95% | |
| 4 | Owczarek Mirosław Antoni | 61 | zasadnicze zawodowe | Sieradz, submitted by KOMITET WYBORCZY WYBORCÓW "SOLIDARNI DLA SIERADZA", not a member of any political party | 123 | 15,07% | |
| 5 | Walczak Jacek | 45 | wyższe | Sieradz, submitted by KOMITET WYBORCZY PLATFORMA OBYWATELSKA RP, endorsed by Platforma Obywatelska RP, member of Platformy Obywatelskiej Rzeczypospolitej Polskiej | 327 | 40,07% | |