99chambers

U.S. House seat · lines in effect since 2022

Oregon's 1st District

A district of about 700,000 people, 48% of adults with a bachelor's degree. It votes D+39.1 relative to the nation for president.

Suzanne Bonamici (D) · since Feb 7, 2012Next election Nov 7, 2028The 2026 race →
OR-1

Source: 2026 results: Oregon Secretary of State and civicAPI; boundaries: Census Bureau TIGER/LineUpdated Nov 7, 2026, 3:01 PM ET

Where it sits among all 435 seats

Every U.S. House 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+39.157th most
Democratic
Most DemocraticMost Republican218th seat · the majority line3OR-14652

Labels below the bar mark 5 other seats in Oregon.

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
U.S. HouseD+36.0D+40.5D+42.2

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 State and civicAPIUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 435 seats. Small marks are other seats in Oregon. The black marker is OR-1.

Adults with a bachelor's degree48% 85th pct · 1st of 6 in OR

Higher than 85% of seats.

White adults without a degree36% 45th pct · 6th of 6 in OR

Lower than 55% of seats.

Hispanic residents16% 57th pct · 2nd of 6 in OR

Higher than 57% of seats.

Black residents2% 15th pct · 2nd of 6 in OR

Lower than 85% of seats.

Asian residents10% 83rd pct · 1st of 6 in OR

Higher than 83% of seats.

People per square mile181 38th pct · 3rd of 6 in OR

Less dense 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.

WI-2
48% college gradsD+41.9Held DOR-3
41% college gradsD+48.1Held DMA-2
46% college gradsD+26.1Held DCA-19
26% Hispanic · 48% college gradsD+36.9Held 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. Suzanne Bonamici (D)
    2023– · Won 2022 by 36.0, 2024 by 40.5, 2026 by 42.2

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