99chambers

Oregon House of Representatives seat · lines in effect since 2022

Oregon House District 18

A district of about 78,000 people, 23% of adults with a bachelor's degree. It votes R+29.7 relative to the nation for president.

Rick Lewis (R) · since Nov 6, 2018Next election Nov 7, 2028The 2026 race →

Where it sits among all 60 seats

Every Oregon 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.

R+29.750th most
Democratic
Most DemocraticMost Republican31st seat · the majority lineDistrict 18

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
Oregon House of RepresentativesR+42.3R+41.8R+29.7

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

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

Who lives here, compared

Grey bars show the spread of all 60 seats. Small marks are other seats in Oregon. The black marker is District 18.

Adults with a bachelor's degree23% 17th pct · 50th of 60 in OR

Lower than 83% of seats.

White adults without a degree60% 76th pct · 15th of 60 in OR

Higher than 76% of seats.

Hispanic residents18% 71st pct · 18th of 60 in OR

Higher than 71% of seats.

Black residents0% 20th pct · 48th of 60 in OR

Lower than 80% of seats.

Asian residents1% 14th pct · 52nd of 60 in OR

Lower than 86% of seats.

People per square mile54 24th pct · 46th of 60 in OR

Less dense than 76% 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 56
22% college gradsR+37.7Held RDistrict 59
26% college gradsR+36.0Held RDistrict 17
24% Hispanic · 23% college gradsR+23.5Held RDistrict 4
24% college gradsR+37.2Held R

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. Rick Lewis (R)
    2023– · Won 2022 by 42.3, 2024 by 41.8

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