New Hampshire House
2026 forecast. Updated October 22, 2026, 09:28 UTC
400 of 400 seats are up in 2026. Democrats are forecast to hold 195 seats after November (80% range 154–248) and Republicans 205 (152–246). Neither party wins a majority in 1% of the simulations: the parties can tie at 200 seats each. Who then runs the chamber depends on the state: a coalition, a power-sharing agreement, or, in some Senates, the lieutenant governor's tie-breaking vote. In 2 seats a Democrat or Republican faces only independents or minor-party candidates and is counted as winning; in 2018 to 2024 such candidates lost about 3% of the time, mostly to sitting independents.
Initial version. This model was tested on every state legislative election from 1994 to 2024 before publication, forecasting each as if it had not happened. It beat the simple rule “the party that holds the seat keeps it”, and its chamber seat counts were off by 2.9 seats on average (target: under 3). Districts with no two-party race last time are read from their own presidential vote, a change tested in advance that cut their average error from 17 to 13 points. It missed one of its five accuracy targets: in 2024, the calmest year on record, its ranges were wider than they needed to be (92% of results fell inside its 80% ranges; target: at most 88%). Treat the ranges as cautious. The full test record and code.
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Shaded by the chance of a Democratic win; pale dashed chips are not up in 2026.
Districts
Chance: of a Democratic win (in a district electing several members, of Democrats winning at least half its seats). Source: where the candidate list came from.
| District | Status | Candidates | Democratic chance | Source |
|---|---|---|---|---|
| Belknap 1 | Forecast | Tom Ploszaj (R), Amber Schaefer (D) | 13% | civic guide |
| Belknap 2 | Elects 2: expected Democratic seats 0.2 | Dean S.t. Cascadden (D), Matthew Coker (R), Scott Wallace (R), Seth Wheeler (D) | 16% | civic guide |
| Belknap 3 | Forecast | Steven Bunce (R), William Lawrence, Jr. (D) | 18% | civic guide |
| Belknap 4 | Forecast | Liz Charlwood (D), Kevin M. Nugent, Jr. (R) | 4% | civic guide |
| Belknap 5 | Elects 4: expected Democratic seats 1.0 | Mike Bordes (R), Marcia Hayward (D), Eric Hoffman (D), Lois A. Kessin (D), Timothy Minor (R), Cody Pfaff (R), Denise Riley (D), Paul Rossi (R) | 28% | civic guide |
| Belknap 6 | Elects 4: expected Democratic seats 0.6 | Glen Aldrich (R), Priscilla M. Bean (R), Allan Frank (D), Colleen M. Harkey (R), Bob McLean (D), David Nagel (D), Lisa Rivard (D), Jade Wood (R) | 17% | civic guide |
| Belknap 7 | Elects 3: expected Democratic seats 0.0 | Barbara Comtois (R), Stephen Copithorne (D), Laura Dunham (D), Nancy Mitchell (D), Paul A. Terry (R), Peter R. Varney (R) | 1% | civic guide |
| Belknap 8 | Elects 2: expected Democratic seats 0.1 | Lisa M. Freeman (R), Donald J. Giguere (D), Don House (D), Cameron Thompson (R) | 5% | civic guide |
| Carroll 1 | Elects 3: expected Democratic seats 2.5 | Benjamin Colbath (D), Gregory T. Corrigan (R), Ellin M. Leonard (D), Robert W. Nelson (R), David Paige (D), Karen C. Umberger (R) | 87% | civic guide |
| Carroll 2 | Elects 2: expected Democratic seats 1.9 | Anita Burroughs (D), Adam Heard (D), Erlon Jones (R), Jennifer LePla (R) | 99% | civic guide |
| Carroll 3 | Elects 2: expected Democratic seats 0.6 | Richard R. Brown (R), Karel A. Crawford (R), Todd Milliken (D), Bryan Randolph (D) | 43% | civic guide |
| Carroll 4 | Elects 2: expected Democratic seats 0.1 | Lino M. Avellani (R), Mike Belcher (R), Annie Gehring (D) | 13% | civic guide |
| Carroll 5 | Forecast | Steven Brown (R), Morgan Bultman (D) | 3% | civic guide |
| Carroll 6 | Elects 2: expected Democratic seats 0.2 | Tim Bauman (R), John T. MacDonald (R), Deirdre McEachern (D), Phoebe VanScoy-Giessler (D) | 13% | civic guide |
| Carroll 7 | Forecast | Karen Burnett-Kurie (D), Dale Fincher (R) | 15% | civic guide |
| Carroll 8 | Elects 2: expected Democratic seats 0.2 | Colin Mitchell (R), James Pittman (D), George Randell (party not listed), Tammy Simmons Garthwaite (R) | 16% | civic guide |
| Cheshire 1 | Forecast | Timothy J. Donovan (R), Dylan Germana (D) | 98% | civic guide |
| Cheshire 2 | Decided: only a Democrat is running | Dru Fox (D) | civic guide | |
| Cheshire 3 | Forecast | Philip Jones (D), Marissa W. Salisbury (R) | 99% | civic guide |
| Cheshire 4 | Forecast | Robert Johnson (R), Jodi Newell (D) | >99% | civic guide |
| Cheshire 5 | Forecast | William J. Sommer (R), Lucy McVitty Weber (D) | 98% | civic guide |
| Cheshire 6 | Elects 2: expected Democratic seats 1.8 | Paul Berch (D), Sean Graves (R), Cathryn A. Harvey (D), Zachary Nutting (R) | 96% | civic guide |
| Cheshire 7 | Forecast | Jonathan Liptak (R), Teresa "Terri" O'Rorke (D) | 99% | civic guide |
| Cheshire 8 | Decided: only a Democrat is running | Christine L. Parshall (D) | civic guide | |
| Cheshire 9 | Forecast | James Gruber (D), Richard M. Nalevanko (R) | 42% | civic guide |
| Cheshire 10 | Elects 2: expected Democratic seats 0.8 | Alan Gross (D), Sly Karasinski (R), Steve Russell (D), Michael R. York (R) | 56% | civic guide |
| Cheshire 11 | Forecast | Denis Vincent Murphy, II (R), Lindseigh Picard (D) | 11% | civic guide |
| Cheshire 12 | Forecast | Richard "Dick" Thackston III (R), Kristan Tilton (D) | 27% | civic guide |
| Cheshire 13 | Forecast | Tom Ahlborn-Hsu (D), Matthew John Santonastaso (R) | 78% | civic guide |
| Cheshire 14 | Forecast | Gene Andersen (D), John B. Hunt (R) | <1% | civic guide |
| Cheshire 15 | Elects 2: expected Democratic seats 2.0 | Nicholas Germana (D), Samantha Jacobs (D), Matthew Roach (R), Becky Shields (R) | >99% | civic guide |
| Cheshire 16 | Forecast | Alexander Nalevanko (R), Lucius Parshall (D) | 98% | civic guide |
| Cheshire 17 | Forecast | Jennie Gomarlo (D), Jennifer Rhodes (R) | 7% | civic guide |
| Cheshire 18 | Elects 2: expected Democratic seats 0.4 | Allen Davis (D), Rita Mattson (R), Jim Qualey (R), Rory Lovett Sherman (D) | 29% | civic guide |
| Coos 1 | Elects 2: expected Democratic seats 0.7 | Jay Ennis (D), Sam Hoehn (R), Amy Norris (R), Lee Ann Potter (D) | 54% | civic guide |
| Coos 2 | Forecast | Arnold G. Davis (R), Lincoln Robertson (D) | 2% | civic guide |
| Coos 3 | Decided: only a Republican is running | Mike Ouellet (R) | civic guide | |
| Coos 4 | Forecast | Scott McKinnon Black (party not listed), David Holmander (D), Seth King (R) | 11% | civic guide |
| Coos 5 | Decided: 0 Democratic, 2 Republican on the ballot for these seats | Mark Evans (R), Cassie Mason (party not listed), Peter Morency (R) | civic guide | |
| Coos 6 | Forecast | Robert Gargano (R), Richard Umiker (D) | 29% | civic guide |
| Coos 7 | Forecast | Corinne E. Cascadden (D), Lori Korzen (R) | 24% | civic guide |
| Grafton 1 | Elects 3: expected Democratic seats 0.6 | Joseph Barton (R), Calvin Beaulier (R), Joseph Goderic Beaulieu (D), Andrew Dorsett (R), Timothy T. Egan (D), Linda Massimilla (D) | 15% | civic guide |
| Grafton 2 | Decided: only a Democrat is running | Jared Sullivan (D) | civic guide | |
| Grafton 3 | Forecast | Bonnie Ham (R), Jerry M. Stringham (D) | 99% | civic guide |
| Grafton 4 | Forecast | Heather P. Baldwin (D), David Adams Rardin (R) | 94% | civic guide |
| Grafton 5 | Elects 2: expected Democratic seats 0.0 | Greg Mathieson (R), Marie Louise Bjelobrk (R), Dustin Vigneault (D) | 3% | civic guide |
| Grafton 6 | Forecast | Linda Franz (R), Paul J. Goundrey (D) | 15% | civic guide |
| Grafton 7 | Forecast | Jon A. Gablinske (R), Janet Marie Lucas (D) | 84% | civic guide |
| Grafton 8 | Elects 3: expected Democratic seats 2.9 | Bill Bolton (D), Sallie Fellows (D), George Kirk (R), Peter Lovett (D) | >99% | civic guide |
| Grafton 9 | Forecast | Ella V. Barrett (D), Bradley Macrae (R) | 76% | civic guide |
| Grafton 10 | Forecast | Marc E. Bourassa (D), Steven Coffill (R) | 35% | civic guide |
| Grafton 11 | Forecast | Jake Abuhav (R), Roger B. Larochelle, Jr. (D) | 5% | civic guide |
| Grafton 12 | Decided: 4 Democratic, 0 Republican on the ballot for these seats | Mary A. Hakken-Phillips (D), Russell Muirhead (D), Ellen Rockmore (D), Terry Spahr (D) | civic guide | |
| Grafton 13 | Decided: only a Democrat is running | Laurel Stavis (D) | civic guide | |
| Grafton 14 | Decided: only a Democrat is running | Kathryn Brennan (D) | civic guide | |
| Grafton 15 | Decided: only a Democrat is running | Zoe Hill (D) | civic guide | |
| Grafton 16 | Decided: only a Democrat is running | David Fracht (D) | civic guide | |
| Grafton 17 | Decided: only a Democrat is running | Thomas Cormen (D) | civic guide | |
| Grafton 18 | Forecast | Marko Kloos (D), Donald McFarlane (R) | 30% | civic guide |
| Hillsborough 1 | Elects 4: expected Democratic seats 0.0 | Deborah Kruzel (R), Noah Lamoureaux (D), Tom Mannion (R), Diane Rogers (R), Debbie Ryan (D), Jeffrey Tenczar (R) | 1% | civic guide |
| Hillsborough 2 | Elects 7: expected Democratic seats 2.5 | Matthew Castanien (R), Todd C. Fahey (D), John K. Fitzgerald (D), Phil Greazzo (R), Jeffrey L. Kerr (D), Peter Kujawski (R), Brian Labrie (R), Pat MacMonagle (R), Kristin Noble (R), Ryan Nugent (D), Sheila Quick (D), Catherine A. Rombeau (D), John Schneller (R), Geoffrey Wellington (D) | 31% | civic guide |
| Hillsborough 3 | Elects 3: expected Democratic seats 3.0 | Suzanne A. Beaulieu (D), Fred E. Davis, Jr. (D), Michael Joseph (D), John Menyhard (R) | >99% | civic guide |
| Hillsborough 4 | Elects 3: expected Democratic seats 2.7 | Renae Lias (D), Shawn Martin (R), Camille Pattison (D), Linda V. Ryan (D) | >99% | civic guide |
| Hillsborough 5 | Elects 3: expected Democratic seats 2.8 | Susan A. Elberger (D), Heather Raymond (D), Paul Schibbelhute (R), Dale Swanson (D) | >99% | civic guide |
| Hillsborough 6 | Elects 3: expected Democratic seats 2.9 | Michele Roussel Buckley (D), Doris Hohensee (R), Lee Ann Kluger (D), Elena Pavlou (R), Daniel Richardson (R), Adam R. Thompson (D) | 97% | civic guide |
| Hillsborough 7 | Elects 3: expected Democratic seats 2.8 | Louis C. Juris (D), Avalon Lewis (R), Jim Mahoney (D), Roy H. Parker (R), Charlene Bangs Pedersen (D) | 96% | civic guide |
| Hillsborough 8 | Elects 3: expected Democratic seats 2.5 | Efstathia Booras (D), Christal Lloyd (D), Frances E. Nutter-Upham (D), Travis Tripodi (R) | >99% | civic guide |
| Hillsborough 9 | Elects 3: expected Democratic seats 3.0 | Joseph Cole (R), Rich Green (D), Sanjeev K. Manohar (D), Santosh Salvi (D) | >99% | civic guide |
| Hillsborough 10 | Elects 3: expected Democratic seats 2.9 | Linda Harriott-Gathright (D), Martin "Marty" Jack (D), Samantha O'Loughlin (D), Bill Ohm (R) | >99% | civic guide |
| Hillsborough 11 | Elects 3: expected Democratic seats 3.0 | Manoj Chourasia (D), William "Will" Darby (D), Kristie Hart (R), Arya Shams (D) | >99% | civic guide |
| Hillsborough 12 | Elects 8: expected Democratic seats 2.8 | Kevin Francis Ballantine (R), Rebecca Boutin (D), Bill Boyd (R), Matthew Brown (D), Kyle Haines (party not listed), Julie Miles (R), Maureen Mooney (R), Nancy A. Murphy (D), Jeanine Notter (R), Marc Nozell (D), Adam Presa (R), Mary Beth Raven (D), Heather Robitaille (D), Rosemarie Rung (D), Kevin Southwick (R), Wendy E.n. Thomas (D), Wolfram von Schoen (R) | 36% | civic guide |
| Hillsborough 13 | Elects 6: expected Democratic seats 0.7 | Luan Baci (D), James Battis (D), Jim Caron (D), C. Mark DelSesto (party not listed), Dillon Dumont (R), Catherine "Cathy" Kenny (R), Kate Messner (D), Andrew Prout (R), Don Staveley (D), Tom Trost (R), Jordan G. Ulery (R), Robert James Wherry III (R) | 9% | civic guide |
| Hillsborough 14 | Elects 2: expected Democratic seats 0.0 | Ray Ealy (D), Richard W. Lascelles (R), Paula Paciulan (D), Raymond C. Peeples, Jr. (R) | 2% | civic guide |
| Hillsborough 15 | Elects 2: expected Democratic seats 0.3 | Michael Farley (D), Michael Fitzell (D), Mark McLean (R), Mark Proulx (R) | 25% | civic guide |
| Hillsborough 16 | Elects 2: expected Democratic seats 1.3 | Benjamin C. Baroody (D), Maxine B. Mosley (D), David A. Smith (R), Michael J. Tkacz (R) | 82% | civic guide |
| Hillsborough 17 | Elects 2: expected Democratic seats 1.7 | Rob Fox (D), Sean Parr (D), Ben Prescott (R) | >99% | civic guide |
| Hillsborough 18 | Elects 2: expected Democratic seats 1.7 | Jessica Grill (D), Steven Kesselring (R), Jim Normand (D) | >99% | civic guide |
| Hillsborough 19 | Elects 2: expected Democratic seats 0.4 | Jane Ellen Beaulieu (D), Matt Drew (R), Mickey Mullin (R), Chrissy Simonds (D) | 35% | civic guide |
| Hillsborough 20 | Elects 2: expected Democratic seats 1.3 | Pierre Dupont (R), Jose R. Marte (R), Pauline Martineau (D), Alissandra Murray (D) | 81% | civic guide |
| Hillsborough 21 | Elects 2: expected Democratic seats 1.9 | Jeffrey "Jeff" Goley (D), Chris Morgan (R), Christine Seibert (D) | >99% | civic guide |
| Hillsborough 22 | Elects 2: expected Democratic seats 1.8 | Max Abramson (R), Greg Erskine (D), Nicole Leapley (D), Brittany Ping (R) | 96% | civic guide |
| Hillsborough 23 | Decided: 2 Democratic, 0 Republican on the ballot for these seats | Jean Leniol Jeudy (D), Mary Ngwanda Georges (D) | civic guide | |
| Hillsborough 24 | Elects 2: expected Democratic seats 1.4 | Frank Anthony (D), Shuvom Ghose (R), Paul LaFerriere (R), Jessica Margeson (D) | 85% | civic guide |
| Hillsborough 25 | Elects 2: expected Democratic seats 1.4 | Heather Deiner (D), Kathleen Paquette (R), Kathy Staub (D) | >99% | civic guide |
| Hillsborough 26 | Elects 2: expected Democratic seats 0.8 | Brian D. Cole (R), Henry Emele (R), Mary C. Freitas (D), Patrick N. Long (D) | 60% | civic guide |
| Hillsborough 27 | No Democrat running: counted Republican | Timothy J. Coffin (party not listed), Mary Murphy (R) | civic guide | |
| Hillsborough 28 | Elects 2: expected Democratic seats 0.0 | Travis Corcoran (R), Keith Erf (R), David E. Erikson (D), Benson H. Goodwin (D) | 4% | civic guide |
| Hillsborough 29 | Elects 4: expected Democratic seats 1.3 | Joe Alexander Jr. (R), Karyn Battey (D), Christopher Calhoun (D), Shanun R. Carey (R), Henry R. Giasson III (R), Judi L. Lanza (D), Marie B. Morgan (D), Sherri Reinfurt (R) | 39% | civic guide |
| Hillsborough 30 | Elects 3: expected Democratic seats 0.6 | W. Gordon Allen (D), Larry Baker (R), William Bryk (D), Austin Cottle (R), Janet McEwen (D), Tim Morehouse (R) | 15% | civic guide |
| Hillsborough 31 | Forecast | Jarvis Martin Adams IV (R), Molly C. Howard (D) | 94% | civic guide |
| Hillsborough 32 | Elects 3: expected Democratic seats 0.1 | Diane Kelley (R), Jim Kofalt (R), Shane Sirois (R), Richard Swanson (D), Kermit Williams (D) | 1% | civic guide |
| Hillsborough 33 | Elects 2: expected Democratic seats 2.0 | Peter R. Leishman (D), Kimberly Joy Thomas (R), Jonah Orion Wheeler (D) | >99% | civic guide |
| Hillsborough 34 | Elects 3: expected Democratic seats 2.7 | Stephanie Grund (D), Jason Hennessey (R), Russ Hodgkins (R), Diane Layton (R), Daniel LeClerc (D), Daniel T. Veilleux (D) | 94% | civic guide |
| Hillsborough 35 | Elects 2: expected Democratic seats 1.2 | Liz Barbour (R), James "Jim" Kelly (R), Kat McGhee (D), Ben Ming (D) | 79% | civic guide |
| Hillsborough 36 | Elects 2: expected Democratic seats 0.4 | Diane Pauer (R), Michael Pellerito (D), Stephen Spratt (D), John W. Suiter (R) | 35% | civic guide |
| Hillsborough 37 | Forecast | Daryl D'Angelo (party not listed), Megan A. Murray (D), Michael "Mike" Thornton (R) | 82% | civic guide |
| Hillsborough 38 | Elects 2: expected Democratic seats 0.3 | Mahendra Bakshi (D), Adam Haverstock (R), Heidi Jakoby (D), Ted Trost (R) | 23% | civic guide |
| Hillsborough 39 | Elects 2: expected Democratic seats 1.0 | Ellen A. Boudreau (D), Jon DiPietro (R), William Infantine (R), Thomas Katsiantonis (D) | 69% | civic guide |
| Hillsborough 40 | Elects 4: expected Democratic seats 3.6 | Lynne M. Cumming (R), Carlos Gonzalez (R), Erin Kerwin (D), Mark S. MacKenzie (D), William "Bill" O'Brien (R), Robert Richard-Snipes (D), Robert Rivera (R), Trinidad Tellez (D) | 96% | civic guide |
| Hillsborough 41 | Elects 3: expected Democratic seats 2.8 | Lily M. Foss (D), Ryan Hebert (R), Jason Hodgdon (R), Bishwa Bahadur Shah (D), Joseph Skinner (R), Tom Stewart (D) | 96% | civic guide |
| Hillsborough 42 | Elects 3: expected Democratic seats 1.0 | Gerald "Gerry" Griffin (R), Teri Harkins (D), Rob Lovett (R), Lee Nyquist (D), Lisa C.m. Post (R), Peter Ryder (D) | 29% | civic guide |
| Hillsborough 43 | Elects 4: expected Democratic seats 1.8 | Ethan Aho (D), William J. Bieschke (R), Gary L. Daniels (R), Paul Dargie (D), Claire Holston (D), Elizabeth Keenan (R), Maria Perez (D), Vanessa L. Sheehan (R) | 53% | civic guide |
| Hillsborough 44 | Elects 2: expected Democratic seats 0.2 | Ross Berry (R), Chris Conroy (D), Robert "Bob" Jones (D), Lisa Mazur (R) | 19% | civic guide |
| Hillsborough 45 | Forecast | Jack B. Flanagan (R), Jerry Roche (D) | 20% | civic guide |
| Merrimack 1 | Forecast | Lorrie Carey (D), Rick Devoid (R) | 22% | civic guide |
| Merrimack 2 | Forecast | Joyce May Fulweiler (D), Gregory "Greg" Hill (R) | 3% | civic guide |
| Merrimack 3 | Elects 2: expected Democratic seats 0.5 | Scott A. Burns (D), Vivian Marie Hall (D), Werner D. Horn (R), Michael Visconti (R) | 41% | civic guide |
| Merrimack 4 | Elects 2: expected Democratic seats 0.2 | Jose E. Cambrils (R), Michael Moffett (R), Cody York (D) | 25% | civic guide |
| Merrimack 5 | Elects 2: expected Democratic seats 0.2 | Louise Andrus (R), Deborah Aylward (R), Lorna Carlisle (D), Thomas Ware (D) | 20% | civic guide |
| Merrimack 6 | Forecast | Paul M. Little (R), Thomas "Tom" Schamberg (D) | 99% | civic guide |
| Merrimack 7 | Elects 2: expected Democratic seats 2.0 | Karen E. Ebel (D), Dorothy L. Hitchmoth (R), Gregory M. Sargent (D) | >99% | civic guide |
| Merrimack 8 | Elects 3: expected Democratic seats 2.5 | Tony Caplan (D), Matt Center (R), Eileen Kelly (D), Stephanie R. Payeur (D), Stephen Craig Pierce (R), Natalie J. Wells (R) | 87% | civic guide |
| Merrimack 9 | Elects 4: expected Democratic seats 3.9 | Eleana Marie Colby (D), Muriel Hall (D), David Luneau (D), John F. Martin (R), James Newsom (D), Matthew Poulin (R) | >99% | civic guide |
| Merrimack 10 | Elects 4: expected Democratic seats 0.5 | Stephen E. Boyd (R), Lucas J. Coriaty (D), Ricky Gurung (D), William Patrick Lynch (D), Germano Martins (D), Pamela McMahon (R), Yury Polozov (R), Thomas C. Walsh (R) | 12% | civic guide |
| Merrimack 11 | Forecast | Matthew Pitaro (R), Al Turcotte (D) | 38% | civic guide |
| Merrimack 12 | Elects 2: expected Democratic seats 0.6 | Mariana R. Beer (D), Peter L. Mehegan (R), Kenneth Nivison (D), Brian Seaworth (R) | 45% | civic guide |
| Merrimack 13 | Decided: 0 Democratic, 2 Republican on the ballot for these seats | Cyril Aures (R), Becky Berk (party not listed), Paul Twomey (party not listed), Clayton Wood (R) | civic guide | |
| Merrimack 14 | Forecast | Glenn Horner (D), Gary Matteson (R) | 4% | civic guide |
| Merrimack 15 | Decided: only a Democrat is running | Tracy Anne Bricchi (D) | civic guide | |
| Merrimack 16 | Forecast | Connie Lane (D), Laurence R. Weissbrot (R) | 99% | civic guide |
| Merrimack 17 | Decided: only a Democrat is running | Beth Richards (D) | civic guide | |
| Merrimack 18 | Forecast | Lisa D. Beaudoin (D), Elijah J. Wilson (R) | >99% | civic guide |
| Merrimack 19 | Decided: only a Democrat is running | Mary Jane Wallner (D) | civic guide | |
| Merrimack 20 | Forecast | Jonathan Clark (R), Nathan Giffard (D) | 98% | civic guide |
| Merrimack 21 | Forecast | Darryl Berleth (R), Timothy Soucy (D) | >99% | civic guide |
| Merrimack 22 | Forecast | Jonathan Cate (R), Alison Murphy (D) | 94% | civic guide |
| Merrimack 23 | Forecast | Andrew Georgevits (R), Kristopher Levesque (D) | 84% | civic guide |
| Merrimack 24 | Decided: only a Democrat is running | Matthew S. Hicks (D) | civic guide | |
| Merrimack 25 | Forecast | Erica Russell (D), James Thibault (R) | 2% | civic guide |
| Merrimack 26 | Forecast | Alvin B. See (R), Harold D. Tuttle (D) | 6% | civic guide |
| Merrimack 27 | Elects 2: expected Democratic seats 0.2 | Harry Kozlowski (D), Raymond Plante (R), Vanessa Poulin (R), Phillip James Walker (D) | 14% | civic guide |
| Merrimack 28 | Decided: only a Democrat is running | Lisa Brown (D) | civic guide | |
| Merrimack 29 | Decided: only a Democrat is running | Kristina "Kris" Schultz (D) | civic guide | |
| Merrimack 30 | Forecast | Jason Quinno (D), Robert C. Washburn, Sr. (R) | >99% | civic guide |
| Rockingham 1 | Elects 3: expected Democratic seats 0.9 | Scott R. Bryer (R), Donna Danis (D), James Guzofski (R), Hal Rafter (D), Pamela Sanderson (D), Paul D. Tudor (R) | 27% | civic guide |
| Rockingham 2 | Elects 3: expected Democratic seats 0.1 | Kendra Cohen (D), Will Huebner (R), Judith Lindsey (D), Jason Osborne (R), Robert Prieto (D), James Spillane (R) | 2% | civic guide |
| Rockingham 3 | Forecast | Mary J. Ford (R), Charles "Chuck" R. Heuer (D) | 1% | civic guide |
| Rockingham 4 | Elects 3: expected Democratic seats 0.0 | Cindy L. Bennett (R), Mike Drago (R), Art Hunt (D), Brian Nadeau (R), Christine Pierce (D) | <1% | civic guide |
| Rockingham 5 | Elects 2: expected Democratic seats 0.9 | Trevor Morse (R), Joe Perry (D), John Scully (R), Mark Vallone (D) | 65% | civic guide |
| Rockingham 6 | Forecast | Allen W. Cook (R), Eric S. Turer (D) | 84% | civic guide |
| Rockingham 7 | Forecast | Jj DeFeo (D), Laurence A. Miner (R) | 3% | civic guide |
| Rockingham 8 | Decided: only a Republican is running | Sayra Lynn DeVito (R) | civic guide | |
| Rockingham 9 | Decided: 0 Democratic, 2 Republican on the ballot for these seats | Matthew Brooks (R), Kevin M. Major (R) | civic guide | |
| Rockingham 10 | Decided: 3 Democratic, 0 Republican on the ballot for these seats | Michael Cahill (D), Charlotte I. DiLorenzo (D), Ellen Read (D) | civic guide | |
| Rockingham 11 | Elects 4: expected Democratic seats 4.0 | Julie D. Gilman (D), Robert Goeman (R), Enna Grazier (D), Steven C. Jones (D), Mark A. Paige (D) | >99% | civic guide |
| Rockingham 12 | Elects 2: expected Democratic seats 1.9 | Patrick Abrami (R), Allison Knab (D), Zoe R. Manos (D), James Scamman (R) | 99% | civic guide |
| Rockingham 13 | Elects 10: expected Democratic seats 2.0 | Michael Appleton (R), Brandon Bach (R), Thomas Bosia (D), Haley Carreau (D), Jamie Carreau (D), Brian Chirichiello (R), Paula Mahon d'Entremont (D), Charles Foote (R), Matt Glavin (D), Anthony Henry (R), Hollie Hesse (D), Erica Layon (R), David C. Love (R), Jim Marshall (D), Jodi Nelson (R), John Potucek (R), David Provencher (D), Richard P. Tripp (R), Kristine Trow (D), Thomas C. Wood (D) | 16% | civic guide |
| Rockingham 14 | Elects 2: expected Democratic seats 0.3 | Pamela Brown (R), Paul C. Paone (D), Kenneth L. Weyler (R) | 28% | civic guide |
| Rockingham 15 | Elects 2: expected Democratic seats 0.1 | Lisa DeMio (D), Joseph "Joe" Guthrie (R), Lilli Walsh (R), Laurie A. Warnock (D) | 7% | civic guide |
| Rockingham 16 | Elects 7: expected Democratic seats 1.3 | Gregory G. Carson (R), Edward 'Ted' Combes (D), Jane Cooper (D), Bob Cote (D), Ron Dunn (R), Isaac Fernandez (D), Michela Hites (D), David C. Lundgren (R), Wayne D. MacDonald (R), Neil Marceau (D), Jeffrey McGraw (R), Sherman Packard (R), Kristine Perez (R), Paul Skudlarek (D) | 14% | civic guide |
| Rockingham 17 | Elects 4: expected Democratic seats 0.1 | Irene L. Harnden (D), Katelyn Kuttab (R), Bob Lynn (R), David Martsolf (D), Charles E. McMahon (R), Daniel Popovici-Muller (R), Darryn E. Remillard (D), Matthew Swoboda (D) | 2% | civic guide |
| Rockingham 18 | Elects 2: expected Democratic seats 0.2 | Beth M. Cacciotti (D), Debra L. DeSimone (R), Chris Duerr (D), Jay Markell (R) | 20% | civic guide |
| Rockingham 19 | Forecast | Wendy Larson (D), Susan M. Porcelli (R) | 6% | civic guide |
| Rockingham 20 | Elects 3: expected Democratic seats 0.1 | Rick Faulconer (D), Robert D. Harb (R), Charles R. Melvin, Sr. (R), James Summers (R) | <1% | civic guide |
| Rockingham 21 | Decided: only a Democrat is running | Anna Howard (D) | civic guide | |
| Rockingham 22 | Decided: only a Democrat is running | Rebecca Audet (D) | civic guide | |
| Rockingham 23 | No Republican running: counted Democrat | Kirsten Larsen Schultz (party not listed), Jim Maggiore (D) | civic guide | |
| Rockingham 24 | Elects 2: expected Democratic seats 1.9 | Dennis Malloy (D), Michael J. Moody (D), Marilyn Page (R), Kevin Szmyd (R) | 98% | civic guide |
| Rockingham 25 | Elects 9: expected Democratic seats 0.1 | Lorie Ball (R), Claudia DeFuria (D), Kienen Dyer (D), Edward W. Huminick (R), John Janigian (R), George I. Kassas (R), Donna Loranger (D), Dennis Mannion (R), Valerie McDonnell (R), Joe Sweeney (R), John Sytek (R), Susan J. Vandecasteele (R) | <1% | civic guide |
| Rockingham 26 | Decided: only a Democrat is running | Buzz Scherr (D) | civic guide | |
| Rockingham 27 | Decided: only a Democrat is running | Gerald W.r. Ward (D) | civic guide | |
| Rockingham 28 | Decided: only a Democrat is running | Carrie Sorensen (D) | civic guide | |
| Rockingham 29 | Elects 4: expected Democratic seats 2.4 | Nicholas D. Bridle (R), Ward Galanis (D), Rebecca LaPierre (D), Molly McCoy (D), Nathan Andrew Riggs (D), Kenneth "Ken" Sheffert (R), Bruce R. Theriault (R), Richard Wickson, Jr. (R) | 73% | civic guide |
| Rockingham 30 | Elects 2: expected Democratic seats 0.0 | Diana Labrecque Chapman (D), Jason A. Janvrin (R), Aboul B. Khan (R) | 2% | civic guide |
| Rockingham 31 | Elects 2: expected Democratic seats 0.0 | Peter Boudreau (D), Jess Edwards (R), Terry Roy (R), Yaz Safarzadeh (D) | 3% | civic guide |
| Rockingham 32 | Forecast | Kaley Dvorak (D), Melissa A. Litchfield (R) | 2% | civic guide |
| Rockingham 33 | Decided: only a Democrat is running | Alexis Simpson (D) | civic guide | |
| Rockingham 34 | Forecast | Jade DeMio (D), Mark A. Pearson (R) | 1% | civic guide |
| Rockingham 35 | Forecast | Julius F. Soti (R), Michelle Stith (D) | 13% | civic guide |
| Rockingham 36 | Forecast | J D Bernardy (R), Paul Bonzani (D) | 3% | civic guide |
| Rockingham 37 | Decided: only a Democrat is running | Kate Cook (D) | civic guide | |
| Rockingham 38 | Forecast | Peggy Balboni (D), Paul Martino (R) | 98% | civic guide |
| Rockingham 39 | Forecast | Sue Polidura (R), Barbara M. Ward (D) | 98% | civic guide |
| Rockingham 40 | Forecast | Linda McGrath (R), Justin Gregory Packard (D) | 16% | civic guide |
| Strafford 1 | Elects 2: expected Democratic seats 0.5 | Brian Beaverstock (D), Jimmy Bourque (D), W. Packy Campbell (R), Andy Dow (R) | 35% | civic guide |
| Strafford 2 | Elects 3: expected Democratic seats 0.1 | Glenn Bailey (R), Larry Brown (D), Michael Granger (R), Mark F. Racic (R) | <1% | civic guide |
| Strafford 3 | Forecast | Linda R. Adamo (D), Susan DeRoy (R) | <1% | civic guide |
| Strafford 4 | Elects 3: expected Democratic seats 1.8 | JoAnne Hack (R), Kimberly McGlinchey (D), Tanya Rich (R), Ginna Schonwald (D), Scott Shepard (D), Kurt Wuelper (R) | 61% | civic guide |
| Strafford 5 | Forecast | William F. Fessenden (D), Jenny O. Wilson (R) | 46% | civic guide |
| Strafford 6 | Forecast | Denise DeDe-Poulin (R), Daniel Fitzpatrick (D) | 30% | civic guide |
| Strafford 7 | Forecast | Eric Bourgeois (R), John Larochelle (D) | 29% | civic guide |
| Strafford 8 | Forecast | David Walker (R), Ty Wyman (D) | 27% | civic guide |
| Strafford 9 | Forecast | Nevin Dexter (D), Robert Qua (R) | 79% | civic guide |
| Strafford 10 | Decided: 4 Democratic, 0 Republican on the ballot for these seats | Wayne M. Burton (D), Timothy Horrigan (D), Siena R. Schaier (D), Loren Selig (D) | civic guide | |
| Strafford 11 | Elects 3: expected Democratic seats 3.0 | Erik Johnson (D), Monique Meadows (R), Thomas Southworth (D), Janet G. Wall (D) | >99% | civic guide |
| Strafford 12 | Elects 4: expected Democratic seats 3.7 | Omero N. Ambriz (R), Billie Butler (D), Paul T. Edgar (R), Myles England (D), David Hilton (R), Philip Houde (R), Will Hurley (D), Wayne Pearson (D) | 98% | civic guide |
| Strafford 13 | Forecast | Peter Bixby (D), Daniel A. Furman (R) | 94% | civic guide |
| Strafford 14 | Decided: only a Democrat is running | Peter B. Schmidt (D) | civic guide | |
| Strafford 15 | Decided: only a Democrat is running | Samuel Chouinard (D) | civic guide | |
| Strafford 16 | Decided: only a Democrat is running | Gary R. Gilmore (D) | civic guide | |
| Strafford 17 | Forecast | Matthew D. Albion (R), Jessica F. LaMontagne (D) | >99% | civic guide |
| Strafford 18 | Forecast | Thom Flynn (D), Michael Harrington (R) | 7% | civic guide |
| Strafford 19 | Elects 3: expected Democratic seats 1.6 | Samuel Farrington (R), James Higginbottom (R), Jonathan J. King (D), Justin McIsaac (D), Nick Paul (D), Jonathan Verbicky (R) | 53% | civic guide |
| Strafford 20 | Forecast | John Colford (R), Allan Howland (D) | >99% | civic guide |
| Strafford 21 | Elects 3: expected Democratic seats 3.0 | Seth Miller (D), Joseph D. Morganella (R), Geoffrey Smith (D), Alice Wade (D) | >99% | civic guide |
| Sullivan 1 | Forecast | Joel T. Hutchins (R), Brian M. Sullivan (D) | >99% | civic guide |
| Sullivan 2 | Forecast | Michael Belanger (R), Jenny Ramsey (D) | 99% | civic guide |
| Sullivan 3 | Elects 3: expected Democratic seats 0.3 | Lisa DeBartolomao (D), Timothy Fitzpatrick (D), Jeffrey F. Kessler (D), Skip Rollins (R), Steven Smith (R), Walter Spilsbury (R) | 6% | civic guide |
| Sullivan 4 | Forecast | Ron Rule (R), Chris Salmon (D) | 3% | civic guide |
| Sullivan 5 | Forecast | George C. Grant (R), Judith M. Thackaberry (D) | 45% | civic guide |
| Sullivan 6 | Elects 3: expected Democratic seats 2.1 | John R. Cloutier (D), Chris Cogswell (D), Dale Girard (R), Lisa R. Gosselin (D), Wayne J. Hemingway (R), Emily Sandblade (R) | 74% | civic guide |
| Sullivan 7 | Forecast | Margaret M. Drye (R), Lawrence A. Schissel (D) | 20% | civic guide |
| Sullivan 8 | Elects 2: expected Democratic seats 1.5 | Hope Damon (D), Samuel Deering (D), Catherine Peschke (R), Jonathan F. Stone (R) | 88% | civic guide |