Indiana State Senate seat · lines in effect since 2022
Indiana Senate District 18
A district of about 139,000 people, 19% of adults with a bachelor's degree. It votes R+53.1 relative to the nation for president.
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 race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2024 | |
|---|---|
| U.S. Senate | R+52.6 |
| Governor | R+40.8 |
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 50 seats. Small marks are other seats in Indiana. The black marker is District 18.
Lower than 88% of seats.
Higher than 82% of seats.
Higher than 73% of seats.
Lower than 86% of seats.
Lower than 78% of seats.
Less dense than 90% 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 13IndianaR+49.5Not up in 2026District 44
22% college gradsR+46.5Not up in 2026District 17
21% college gradsR+46.6Held RDistrict 48
20% college gradsR+44.3Held 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