99chambers

Indiana House of Representatives seat · lines in effect since 2022

Indiana House District 51

A district of about 65,000 people, 17% of adults with a bachelor's degree. It votes R+48.3 relative to the nation for president.

Tony Isa (R) · since Nov 5, 2024Next election Nov 7, 2028The 2026 race →

Where it sits among all 100 seats

Every Indiana House of Representatives 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+48.380th most
Democratic
Most DemocraticMost Republican51st seat · the majority lineDistrict 51

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+55.9No race
GovernorNo raceR+46.9No race
Indiana House of RepresentativesR+51.2R+55.5R+35.0

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 100 seats. Small marks are other seats in Indiana. The black marker is District 51.

Adults with a bachelor's degree17% 9th pct · 91st of 100 in IN

Lower than 91% of seats.

White adults without a degree78% 99th pct · 2nd of 100 in IN

Higher than 99% of seats.

Hispanic residents4% 30th pct · 70th of 100 in IN

Lower than 70% of seats.

Black residents0% 3rd pct · 97th of 100 in IN

Lower than 97% of seats.

Asian residents0% 6th pct · 94th of 100 in IN

Lower than 94% of seats.

People per square mile108 26th pct · 74th of 100 in IN

Less dense than 74% 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 73
IndianaR+49.6Held RDistrict 52
21% college gradsR+47.9Held RDistrict 33
IndianaR+50.0Held RDistrict 54
IndianaR+50.5Held 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. Tony Isa (R)
    2025– · Won 2024 by 55.5, 2026 by 35.0
  2. Dennis J. Zent (R)
    2023–2025 · Won 2022 by 51.2

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