m. Sierpc, precinct no. 12
| Precinct | Precinct no. 12 |
| Siedziba Obwodowej Komisji Wyborczej | Dom Kultury ul. Piastowska 37 |
| Office | Burmistrz Miasta Sierpc |
| Number of electors | 917 |
| Number of dispensed ballot cards | 495 |
| Number of valid ballot cards | 495 |
| Number of votes valid | 475 |
| Number of votes invalid | 20 |
| Protocol date | 13-11-2006 02:19 |
| Number | Family name and given names | Age | Education | Address, party membership and endorsements | Number of votes | % votes |
|---|---|---|---|---|---|---|
| 1 | Kośmider Marek Andrzej | 56 | wyższe | Sierpc, submitted by Komitet Wyborczy Wyborców Zgoda w Samorządzie, not a member of any political party | 248 | 52.21% |
| 2 | Leśniewski Piotr | 36 | wyższe ekonomiczne | Sierpc, submitted by Komitet Wyborczy Wyborców Niezależni i Samorządni, not a member of any political party | 202 | 42.53% |
| 3 | Lorek Witold Zdzisław | 43 | wyższe | Sierpc, submitted by Komitet Wyborczy Wyborców Blok Samorządowy 2006, not a member of any political party | 25 | 5.26% |