99chambers

Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

What's the difference?

New Hampshire · New Hampshire House of Representatives: State House District Hillsborough 15 · Updated Oct 16, 2026

Mark Proulx

RepublicanIncumbent2 seats

2026 race · New Hampshire House of Representatives: State House District Hillsborough 15

17% chance of winning · race rated Likely D

83%17%

17% chance of winning · race rated Likely D

83%17%
● Michael Farley● Mark ProulxINCAlso: Mark McLean (R), Michael Fitzell (D)
Full race forecast

Background

Current office
New Hampshire House of Representatives, HD-515
Past races on file
7 (6 won)

Links: Candidate list (source)

Electoral history

Earlier races in New Hampshire, newest first, matched by name in the results archive.

  1. 2022

    House of Representatives · HD-515 Nov 8, 2022

    R · 27.7% · 2,011 votes

    Won
  2. 2018

    House of Representatives · HD-HILLSBOROUGH 44 Nov 6, 2018

    R · 26.3% · 4,818 votes

    Won
  3. 2016

    House of Representatives · HD-HILLSBOROUGH 44 Nov 8, 2016

    R · 30.6% · 6,553 votes

    Won
  4. 2014

    House of Representatives · HD-HILLSBOROUGH 44 Nov 4, 2014

    R · 30.2% · 4,579 votes

    Won
  5. 2014

    House of Representatives · HD-HILLSBOROUGH 44 primary · Sep 9, 2014

    R · 37.3% · 1,048 votes

    Won
  6. 2012

    House of Representatives · HD-515 Nov 6, 2012

    R · 25.0% · 1,978 votes

    Lost
  7. 2010

    House of Representatives · HD-515 Nov 2, 2010

    R · 24.5% · 1,626 votes

    Won

Opponents in 2026