Ohio State Senate seat · lines in effect since 2024

Ohio Senate District 20

A district of about 368,000 people, 30% of adults with a bachelor's degree. It votes R+28.8 relative to the nation for president.

Where it sits among all 33 seats

Every Ohio 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.

R+28.824th most
Democratic
Most DemocraticMost Republican17th seat · the majority lineDistrict 20

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.

201620182024
U.S. SenateR+35.5R+9.4R+20.4
GovernorNo raceR+20.2No race

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 33 seats. Small marks are other seats in Ohio. The black marker is District 20.

Adults with a bachelor's degree30% 47th pct · 18th of 33 in OH

Lower than 53% of seats.

White adults without a degree61% 62nd pct · 13th of 33 in OH

Higher than 62% of seats.

Hispanic residents3% 22nd pct · 26th of 33 in OH

Lower than 78% of seats.

Black residents6% 38th pct · 21st of 33 in OH

Lower than 62% of seats.

Asian residents3% 69th pct · 11th of 33 in OH

Higher than 69% of seats.

People per square mile256 34th pct · 22nd of 33 in OH

Less dense than 66% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET