Indiana State Senate seat · lines in effect since 2022
Indiana Senate District 12
A district of about 133,000 people, 24% Hispanic, 21% of adults with a bachelor's degree. It votes R+25.8 relative to the nation for president.
2024 election
Nov 5, 2024- Blake Doriot (R) · won100.0%
Unopposed.
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
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.
Democratic
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 election for this seat
14 races since 1972. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2022 | |||
| 2024 | Blake Doriot (R) | — | Unopposed |
| Lines first used in 2012 | |||
| 2020 | Blake Doriot (R) | Charles D. Mumaw (D) | 37.1 |
| 2016 | Blake Doriot (R) | Carl Rust (D) | 40.3 |
| 2012 | Carlin Yoder (R) | Jim Ball (D) | 37.3 |
| Lines first used in 2002 | |||
| 2008 | Carlin Yoder (R) | Donald L. Metzlersmith (D) | 24.8 |
| 2004 | Marvin D. Riegsecker (R) | Charles D. Mumaw (D) | 53.5 |
| Lines first used in 1992 | |||
| 2000 | Marvin D. Riegsecker (R) | — | Unopposed |
| 1996 | Marvin D. Riegsecker (R) | — | Unopposed |
| 1992 | Marvin D. Riegsecker (R) | — | Unopposed |
| Lines first used in 1982 | |||
| 1988 | Marvin D. Riegsecker (R) | — | Unopposed |
| 1984 | Richard E. Shank (R) | Ralph Spelbring (D) | 42.2 |
| Lines first used in 1972 | |||
| 1980 | Richard E. Shank (R) | Charles D. Mumaw (D) | 39.0 |
| 1976 | Richard E. Shank (R) | Louella T. Martin (D) | 17.5 |
| 1972 | Eldon F. Lundquist (R) | — | Unopposed |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 12
The state's districts in other chambers that share residents with this one, and the share of District 12's area in each.
- U.S. House
- IN-2 100%
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2024 | |
|---|---|
| President | R+26.4 |
| U.S. Senate | R+29.1 |
| Governor | R+23.4 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 8, 2026, 7:01 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 12.
Lower than 78% of seats.
Lower than 59% of seats.
Higher than 98% of seats.
Lower than 51% of seats.
Lower than 71% of seats.
Denser than 67% 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. 2 of the 4 flipped this year.
District 3521% Black · 24% college gradsR+15.9Not up in 2026District 22
29% college gradsR+14.6Flipped DDistrict 1
33% college gradsR+5.7Flipped DDistrict 4
25% college gradsR+0.3Counting
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