Here’s how the TriTown voted in the March 6, 2012 Presidential Primary Election
| Candidate | Marion | Mattapoisett | Rochester |
| Democratic Ballot | |||
| Barack Obama | 150 | 143 | 68 |
| Blank | 2 | 13 | 2 |
| Republican Ballot | |||
| Ron Paul | 58 | 50 | 56 |
| Mitt Romney | 389 | 436 | 344 |
| Rick Perry | 1 | 2 | 1 |
| Rick Santorum | 68 | 75 | 84 |
| Jon Huntsman | 2 | 4 | 6 |
| Michele Bachmann | 3 | 2 | 0 |
| Newt Gingrich | 30 | 47 | 40 |
| Blank | 0 | 33 | 1 |
| Green-Rainbow Ballot | |||
| Kent Mesplay | 0 | 0 | 0 |
| Jill Stein | 0 | 1 | 0 |
| Harley Mikkelson | 0 | 0 | 0 |
| Blank | 0 | 0 | 0 |
| Statistics | |||
| Total Voters | 710 | 820 | 662 |
| Turnout Percentage | 19.2% | 17.9% | 16.6% |
