99chambers

New Hampshire House of Representatives seat · lines in effect since 2022

New Hampshire House of Representatives: State House District Hillsborough 42

A district of about 10,000 people, 45% of adults with a bachelor's degree. It votes D+0.7 relative to the nation for president.

Gerry Griffin (R) · since Nov 8, 2016Keith Ammon (R) · since Nov 4, 2014Lisa Post (R) · since Nov 3, 2020Next election Nov 7, 2028The 2026 race →

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.

D+0.791st most
Democratic
Most DemocraticMost Republican83rd seat · the majority lineDistrict 542

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.

20222024
New Hampshire House of RepresentativesR+0.1R+3.4

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 542.

Adults with a bachelor's degree45% 68th pct · 51st of 159 in NH

Higher than 68% of seats.

White adults without a degree51% 41st pct · 95th of 159 in NH

Lower than 59% of seats.

Hispanic residents1% 23rd pct · 123rd of 159 in NH

Lower than 77% of seats.

Black residents0% 23rd pct · 122nd of 159 in NH

Lower than 77% of seats.

Asian residents0% 22nd pct · 125th of 159 in NH

Lower than 78% of seats.

People per square mile115 28th pct · 115th of 159 in NH

Less dense than 72% 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 106
43% college gradsR+2.4SplitDistrict 2
46% college gradsR+2.2SplitDistrict 701
40% college gradsR+3.3Held DDistrict 536
44% college gradsR+2.4Held 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.

  1. Democratic (D)
    2027– · Won 2026 unopposed
  2. Lisa C. M. Post (R)
    2023–2027 · Won 2022 by 0.9, 2024 by 3.8
  3. Keith Ammon (R)
    2023–2027 · Won 2022 by 0.1, 2024 by 3.8
  4. Gerald Griffin (R)
    2023–2027 · Won 2022 by 0.2, 2024 by 3.4

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)