electionsmcp › races › Idaho State Senate District 21
Idaho State Senate District 21
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Idaho actually voted.
Model Idaho State Senate District 21 →
Current officeholder
Treg A. Bernt Republican
2024 result
Republican R+74.3
2024 votes cast
24,555
Office
State Senate
Precinct results — 2024 general
20 precincts reported in Idaho State Senate District 21's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 16001-2120 | Republican | R+74.4 | 1,872 |
| 16001-2111 | Republican | R+72.4 | 1,598 |
| 16001-2107 | Republican | R+78.0 | 1,531 |
| 16001-2115 | Republican | R+75.0 | 1,374 |
| 16001-2114 | Republican | R+71.5 | 1,340 |
| 16001-2102 | Republican | R+79.5 | 1,318 |
| 16001-2112 | Republican | R+73.8 | 1,292 |
| 16001-2118 | Republican | R+75.6 | 1,289 |
| 16001-2116 | Republican | R+77.4 | 1,237 |
| 16001-2113 | Republican | R+69.6 | 1,212 |
| 16001-2109 | Republican | R+67.3 | 1,182 |
| 16001-2117 | Republican | R+78.7 | 1,135 |
| 16001-2103 | Republican | R+73.6 | 1,099 |
| 16001-2106 | Republican | R+70.7 | 1,093 |
| 16001-2104 | Republican | R+75.7 | 1,092 |
| 16001-2108 | Republican | R+74.9 | 1,069 |
| 16001-2119 | Republican | R+77.6 | 979 |
| 16001-2110 | Republican | R+66.2 | 955 |
| 16001-2105 | Republican | R+71.8 | 948 |
| 16001-2101 | Republican | R+80.2 | 940 |
All 20 precincts are modelable — open the race in the simulator and drill to precinct grain.
Find your district
Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.
Model Idaho State Senate District 21 in five steps
- Set the candidates. Name the contenders for the Idaho State Senate District 21 (or keep the generic Democrat / Republican defaults). The map starts from real 2024 results in every precinct.
- Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
- Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
- Drill to precincts. Zoom from the state down to individual precincts and override any of them by hand.
- Roll up & share. Roll the result up to chamber control, then publish a shareable, frozen link to your scenario.
Open Idaho State Senate District 21 in the simulator →
Frequently asked
Who represents Idaho State Senate District 21?
Treg A. Bernt (Republican) currently holds this State Senate seat.
What was the 2024 result in Idaho State Senate District 21?
R+74.3 — 0 Democratic, 18,233 Republican, of 24,555 votes cast.
Can I model this race myself?
Yes — open it in the electionsmcp simulator and model vote-share swing and turnout from the real 2024 baseline, down to the precinct, then roll it up to chamber control.