| m. Sierpc, Precinct no. 11 |
| Vote on 05-12-2010 | |
| Office | Burmistrz Miasta Sierpc |
| Precinct | Precinct no. 11 |
| Electoral Commission Regional Headquarters | Miejskie Przedszkole Nr 2,ul.Narutowicza 9,Sierpc |
| Number of electors | 1 462 |
| Number of dispensed ballot cards | 540 |
| Number of valid ballot cards | 540 |
| Number of votes valid | 536 |
| Number of votes invalid | 4 |
| Number of dispensed ballot cards for plenipotentiaries | 2 |
| Protocol date | 05-12-2010 22:30 |
| No. | Family name and given names | Age | Education | Address, party membership and endorsements | Number of votes | Votes % | |
| 1 | Kośmider Marek Andrzej | 60 | wyższe | Sierpc, submitted by KOMITET WYBORCZY WYBORCÓW ZGODA W SAMORZĄDZIE, not a member of any political party | 327 | 61,01% | |
| 4 | Żmijewski Jarosław | 41 | wyższe | Sierpc, submitted by KOMITET WYBORCZY WYBORCÓW "AKTYWNE CENTRUM", not a member of any political party | 209 | 38,99% | |
| Vote on 21-11-2010 | |
| Office | Burmistrz Miasta Sierpc |
| Precinct | Precinct no. 11 |
| Electoral Commission Regional Headquarters | Miejskie Przedszkole Nr 2,ul.Narutowicza 9,Sierpc |
| Number of electors | 1 466 |
| Number of dispensed ballot cards | 763 |
| Number of valid ballot cards | 761 |
| Number of votes valid | 743 |
| Number of votes invalid | 18 |
| Number of dispensed ballot cards for plenipotentiaries | 1 |
| Protocol date | 22-11-2010 09:24 |
| No. | Family name and given names | Age | Education | Address, party membership and endorsements | Number of votes | Votes % | |
| 1 | Kośmider Marek Andrzej | 60 | wyższe | Sierpc, submitted by KOMITET WYBORCZY WYBORCÓW ZGODA W SAMORZĄDZIE, not a member of any political party | 313 | 42,13% | |
| 2 | Leśniewski Piotr | 40 | wyższe | Borkowo Kościelne, submitted by KOMITET WYBORCZY WYBORCÓW NIEZALEŻNI I PRAWORZĄDNI, not a member of any political party | 142 | 19,11% | |
| 3 | Zimerman Margota Anna | 38 | wyższe | Sierpc, submitted by KOMITET WYBORCZY WYBORCÓW KOMITET OBYWATELSKI SIERPCZANIE 2010, not a member of any political party | 129 | 17,36% | |
| 4 | Żmijewski Jarosław | 41 | wyższe | Sierpc, submitted by KOMITET WYBORCZY WYBORCÓW "AKTYWNE CENTRUM", not a member of any political party | 159 | 21,40% | |