99chambers

Indiana State Senate seat · lines in effect since 2022

Indiana Senate District 21

A district of about 153,000 people, 36% of adults with a bachelor's degree. It votes R+24.6 relative to the nation for president.

Jim Buck (R) · since Nov 2, 2010Next 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+24.627th most
Democratic
Most DemocraticMost Republican26th seat · the majority lineDistrict 21

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. SenateNo raceR+24.2No race
GovernorNo raceR+15.8No race
Indiana State SenateR+27.9No raceR+6.4

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

Source: 99chambers results archive: precinct results allocated to current lines; 2026: Indiana Election Division and civicAPIUpdated 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 21.

Adults with a bachelor's degree36% 84th pct · 9th of 50 in IN

Higher than 84% of seats.

White adults without a degree53% 39th pct · 31st of 50 in IN

Lower than 61% of seats.

Hispanic residents6% 37th pct · 32nd of 50 in IN

Lower than 63% of seats.

Black residents7% 59th pct · 21st of 50 in IN

Higher than 59% of seats.

Asian residents2% 69th pct · 16th of 50 in IN

Higher than 69% of seats.

People per square mile336 59th pct · 21st of 50 in IN

Denser than 59% 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 16
33% college gradsR+19.8Not up in 2026District 50
33% college gradsR+19.6Not up in 2026District 24
38% college gradsR+23.5Not up in 2026District 28
30% college gradsR+27.1Not 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. Tracey Powell (R)
    2027– · Won 2026 by 6.4
  2. James R. Buck (R)
    2023–2027 · Won 2022 by 27.9

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