99chambers

Oregon State Senate seat · lines in effect since 2022

Oregon Senate District 15

A district of about 153,000 people, 27% Hispanic, 40% of adults with a bachelor's degree. It votes D+27.0 relative to the nation for president.

Janeen Sollman (D) · since Nov 8, 2022Next election Nov 5, 2030The 2026 race →

Where it sits among all 30 seats

Every Oregon State Senate 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+27.011th most
Democratic
Most DemocraticMost Republican16th seat · the majority lineDistrict 15

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.

20222026
Oregon State SenateD+11.1D+33.9

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 30 seats. Small marks are other seats in Oregon. The black marker is District 15.

Adults with a bachelor's degree40% 66th pct · 11th of 30 in OR

Higher than 66% of seats.

White adults without a degree36% 24th pct · 23rd of 30 in OR

Lower than 76% of seats.

Hispanic residents27% 97th pct · 2nd of 30 in OR

Higher than 97% of seats.

Black residents2% 76th pct · 8th of 30 in OR

Higher than 76% of seats.

Asian residents12% 90th pct · 4th of 30 in OR

Higher than 90% of seats.

People per square mile1,462 55th pct · 14th of 30 in OR

Denser than 55% 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
21% Hispanic · 44% college gradsD+34.6Not up in 2026District 10
37% college gradsD+16.4CountingDistrict 13
50% college gradsD+30.0CountingDistrict 25
22% Hispanic · 23% college gradsD+14.2Not up in 2026

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. Janeen Sollman (D)
    2023– · Won 2022 by 11.1

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