New Hampshire House of Representatives seat · lines in effect since 2022
New Hampshire House of Representatives: State House District Merrimack 18
A district of about 3,800 people, 48% of adults with a bachelor's degree. It votes D+31.5 relative to the nation for president.
Where it sits among all 164 seats
Every New Hampshire House of Representatives seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2020 | 2022 | 2024 | 2026 | |
|---|---|---|---|---|
| U.S. Senate | D+49.5 | No race | No race | No race |
| Governor | D+12.2 | No race | No race | No race |
| New Hampshire House of Representatives | No race | D+44.8 | D+34.0 | D+53.0 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 164 seats. Small marks are other seats in New Hampshire. The black marker is District 618.
Higher than 76% of seats.
Lower than 73% of seats.
Higher than 59% of seats.
Higher than 84% of seats.
Higher than 71% of seats.
Denser than 85% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 81647% college gradsD+30.4Held DDistrict 813
49% college gradsD+29.0Held DDistrict 621
48% college gradsD+30.6Held DDistrict 201
43% college gradsD+37.7Held D
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Who has held it
These lines took effect in 2022.
- Lisa D. Beaudoin (D)
2027– · Won 2026 by 53.0 - Jim Mackay (D)
2023–2027 · Won 2022 by 44.8, 2024 by 34.0
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)