Idaho State Senate seat · lines in effect since 2022
Idaho Legislative District 13
A district of about 55,000 people, 21% Hispanic, 24% of adults with a bachelor's degree. It votes R+40.0 relative to the nation for president.
Where it sits among all 35 seats
Every Idaho 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 | 2026 | |
|---|---|---|
| Idaho State Senate | R+40.0 | R+22.9 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Idaho Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 35 seats. Small marks are other seats in Idaho. The black marker is District 13.
Lower than 76% of seats.
Lower than 56% of seats.
Higher than 88% of seats.
Higher than 85% of seats.
Lower than 59% of seats.
Denser 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 2522% college gradsR+37.8Held RDistrict 12
30% Hispanic · 22% college gradsR+39.3Held RDistrict 33
30% college gradsR+29.6Held RDistrict 21
37% college gradsR+30.2Held 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.
- Brian Lenney (R)
2023– · Won 2022 unopposed, 2024 by 40.0, 2026 by 22.9
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)