99chambers

Idaho House of Representatives seat · lines in effect since 2022

Idaho Legislative District 19

A district of about 53,000 people, 62% of adults with a bachelor's degree. It votes D+34.8 relative to the nation for president.

Chris Mathias (D) · since Nov 3, 2020Monica Church (D) · since Nov 5, 2024Next election Nov 7, 2028The 2026 race →

Where it sits among all 35 seats

Every Idaho 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+34.81st most
Democratic
Most DemocraticMost Republican18th seat · the majority lineDistrict 19

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.

202220242026
Idaho House of RepresentativesD+36.6D+31.1D+41.1

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: Idaho Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 35 seats. Small marks are other seats in Idaho. The black marker is District 19.

Adults with a bachelor's degree62% 100th pct · 1st of 35 in ID

Highest of 35 seats.

White adults without a degree32% 0th pct · 35th of 35 in ID

Lowest of 35 seats.

Hispanic residents5% 12th pct · 31st of 35 in ID

Lower than 88% of seats.

Black residents1% 76th pct · 9th of 35 in ID

Higher than 76% of seats.

Asian residents3% 94th pct · 3rd of 35 in ID

Higher than 94% of seats.

People per square mile547 62nd pct · 14th of 35 in ID

Denser than 62% 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 18
57% college gradsD+24.4Held DDistrict 16
44% college gradsD+19.9Held DDistrict 17
39% college gradsD+14.4Held DDistrict 15
38% college gradsR+5.3Held 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. Monica C. Church (D)
    2025– · Won 2024 by 31.1, 2026 by 41.1
  2. Lauren Necochea (D)
    2023–2025 · Won 2022 by 36.6
  3. Chris Mathias (D)
    2023– · Won 2022 by 36.8, 2024 by 34.5, 2026 by 41.2

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