New Hampshire House of Representatives seat · former district
New Hampshire House of Representatives: COOS 4
21 elections since 1968: Democrats won 3, Republicans 16.
2010 election
Nov 2, 2010- Gary Coulombe (D) · won25.9%
- Robert L. Theberge (D) · won · incumbent18.6%
- Doug Thomas (D) · won · incumbent17.1%
- Marc D. Tremblay (R) · won15.3%
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
Every election for this seat
21 races since 1968; the seat changed party 1 time. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2002 | |||
| 2010 | Gary Coulombe · Robert L. Theberge · Doug Thomas · Marc D. Tremblay (DEM) | Lisa Cordwell (R) | 3.4 |
| 2008 | Robert L. Theberge · Lucy Mears · Paul H. Ingersoll Sr. · Doug Thomas (D) | Nathan Morin (R) | 9.8 |
| 2006 | Robert L. Theberge · Edgar Mears · Doug Thomas · Paul H. Ingersoll Sr. (D) | Ralph F. Collins (R) | 6.3 |
| 2004 | Robert L. Theberge · Edgar Mears · Renny E. Morneau · Bernie Buzzell (DEM) | Robert D. Brown (R) | 3.7 |
| Lines first used in 1992 | |||
| 2000 | Leighton Pratt (R) | — | Unopposed |
| 1998 | Leighton Pratt (R) | — | Unopposed |
| 1996 | Leighton Pratt (R) | — | Unopposed |
| 1994 | Leighton Pratt (R) | — | Unopposed |
| 1992 | Leighton Pratt (R) | — | Unopposed |
| Lines first used in 1982 | |||
| 1990 | Lynn C. Horton (R) | — | Unopposed |
| 1988 | Lynn C. Horton (R) | — | Unopposed |
| 1986 | Lynn C. Horton (R) | — | Unopposed |
| 1984 | Lynn C. Horton (R) | — | Unopposed |
| 1982 | Lynn C. Horton (R) | — | Unopposed |
| Lines first used in 1972 | |||
| 1980 | Phoebe A. Chardon · Harold Burns (R) | Dwight E. Merrill (D) | 18.3 |
| 1978 | Harold Burns · Mabel L. Richardson (R) | — | Unopposed |
| 1976 | Harold Burns · Mabel L. Richardson (R) | Dwight E. Merrill (D) | 5.4 |
| 1974 | Mabel L. Richardson · Harold Burns (R) | Dwight E. Merrill (D) | 13.9 |
| 1972 | Mabel L. Richardson · Harold Burns (R) | — | Unopposed |
| Lines first used in 1962 | |||
| 1970 | Harold Burns (R)Flip | — | Unopposed |
| 1968 | Harold Burns (D) | — | Unopposed |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)