Montana State Senate seat · lines in effect since 2024
Montana Senate District 15
A district of about 26,000 people, 22% of adults with a bachelor's degree. It votes R+60.0 relative to the nation for president.
Where it sits among all 50 seats
Every Montana 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.
| 2016 | 2018 | 2020 | 2024 | |
|---|---|---|---|---|
| U.S. Senate | No race | R+32.8 | R+51.8 | R+40.4 |
| Governor | R+34.8 | No race | No race | R+59.6 |
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 Montana. The black marker is District 15.
Lower than 94% of seats.
Lower than 61% of seats.
Lower than 51% of seats.
Lower than 69% of seats.
Lower than 53% of seats.
Less dense than 86% 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 1824% college gradsR+56.9Held RDistrict 19
27% college gradsR+61.1Held RDistrict 9
26% college gradsR+48.8Held RDistrict 7
27% college gradsR+40.2Not 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