99chambers

Indiana State Senate seat · lines in effect since 2022

Indiana Senate District 15

A district of about 138,000 people, 39% of adults with a bachelor's degree. It votes R+18.0 relative to the nation for president.

Liz Brown (R) · since Nov 4, 2014Next election Nov 5, 2030The 2026 race →

Where it sits among all 50 seats

Every Indiana 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+18.018th most
Democratic
Most DemocraticMost Republican26th 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.

20242026
U.S. SenateR+21.2No race
GovernorR+15.0No race
Indiana State SenateNo raceD+3.5

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

Source: 99chambers results archive: precinct results allocated to current lines; 2026: Indiana Election DivisionUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 50 seats. Small marks are other seats in Indiana. The black marker is District 15.

Adults with a bachelor's degree39% 90th pct · 6th of 50 in IN

Higher than 90% of seats.

White adults without a degree49% 24th pct · 38th of 50 in IN

Lower than 76% of seats.

Hispanic residents6% 35th pct · 33rd of 50 in IN

Lower than 65% of seats.

Black residents6% 55th pct · 23rd of 50 in IN

Higher than 55% of seats.

Asian residents6% 88th pct · 7th of 50 in IN

Higher than 88% of seats.

People per square mile1,708 84th pct · 9th of 50 in IN

Denser than 84% 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 32
33% college gradsR+16.0Not up in 2026District 11
35% college gradsR+13.1CountingDistrict 24
38% college gradsR+23.5Not up in 2026District 21
36% college gradsR+24.6Held 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. Elizabeth Brown (R)
    2023– · Won 2022 unopposed

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