Two representatives per district
Each of the 35 legislative districts elects two House members, who run for separate seats (A and B). The forecast treats each seat as its own race.
Idaho › Idaho House of Representatives · State legislature · November 3, 2026 · Updated Oct 16, 2026
Idaho Legislative District 18
D vs D2 seatsSame-party general election. Two Democrats advanced to November: the seat stays Democratic.
Ilana Rubel has no major-party opponent.
Ilana Rubel has no major-party opponent.
2 seats in this district
2.0 D · 0.0 R expected of 2 seats
2.0 D · 0.0 R expected of 2 seats
How this race is decided
The candidates
The district
Lean D+24: how much more Democratic or Republican than the nation it votes for president.
Presidential vote
Precinct results re-aggregated to the current district lines.
Who lives here
- Population
- 39,549
- People per km²
- 107
- Adults with a B.A.+
- 57%
- White, no degree
- 36%of adults
- White 81%
- Hispanic 7%
- Black 1%
- Asian 5%
- Other / multiracial 5%
American Community Survey 2020–2024, aggregated from census tracts.
Past results
Results in the same-numbered district; earlier elections may have used different lines.
2024
33,912 votes · Uncontested by the other party✓ Ilana Rubel (D)50.5%
✓ Brooke Green (D)49.5%
2024 President Vote in this district
23,596 two-party votes · D+23.4 · D+24.9 vs. the nation✓ Kamala Harris (D)61.7%
Donald Trump (R)38.3%
2022
36,334 votes · D+30.6✓ Ilana Rubel (D)32.8%
✓ Brooke Green (D)32.4%
Gregory T Holtz (R)17.4%
Marykate Johnson (R)17.4%
2020 Earlier district lines
57,411 votes · D+22.2✓ Ilana Rubel (D)30.7%
✓ Brooke Green (D)30.2%
Pete Thomas (R)19.6%
Gary M Childe (R)19.5%
2020 President Vote in this district
25,717 two-party votes · D+27.6 · D+23.0 vs. the nation✓ Joe Biden (D)63.8%
Donald Trump (R)36.2%
2016 President Vote in this district
18,389 two-party votes · D+19.6 · D+17.4 vs. the nation✓ Hillary Clinton (D)59.8%
Donald Trump (R)40.2%