electionsmcp › races › Iowa State Senate District 31
Iowa State Senate District 31
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Iowa actually voted.
Model Iowa State Senate District 31 →
Current officeholder
William A. Dotzler Jr. Democratic
2024 result
being added
Office
State Senate
Precinct results — 2022 general
29 precincts reported in Iowa State Senate District 31's 2022 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 19013-WL 2-1 | Democratic | D+97.4 | 818 |
| 19013-WL 5-5 | Democratic | D+96.6 | 801 |
| 19013-WL 1-4 | Democratic | D+96.3 | 764 |
| 19013-WL 3-1 | Democratic | D+96.7 | 603 |
| 19013-WL 5-6 | Democratic | D+96.9 | 583 |
| 19013-WL 1-2 | Democratic | D+96.2 | 575 |
| 19013-WL 5-4 | Democratic | D+97.7 | 572 |
| 19013-WL 3-5 | Democratic | D+97.1 | 560 |
| 19013-WL 2-4 | Democratic | D+96.0 | 554 |
| 19013-WL 2-3 | Democratic | D+97.1 | 518 |
| 19013-WL 2-5 | Democratic | D+96.3 | 491 |
| 19013-WL 4-1 | Democratic | D+97.7 | 483 |
| 19013-WL 1-3 | Democratic | D+97.6 | 464 |
| 19013-WL 2-2 | Democratic | D+97.6 | 461 |
| 19013-WL 5-2 | Democratic | D+97.4 | 456 |
| 19013-WL 1-1 | Democratic | D+96.6 | 442 |
| 19013-WL 1-5 | Democratic | D+96.2 | 424 |
| 19013-WL 2-6 | Democratic | D+97.4 | 420 |
| 19013-WL 3-2 | Democratic | D+95.2 | 419 |
| 19013-WL 3-3 | Democratic | D+98.5 | 414 |
All 29 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 Iowa State Senate District 31 in five steps
- Set the candidates. Name the contenders for the Iowa State Senate District 31 (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 Iowa State Senate District 31 in the simulator →
Frequently asked
Who represents Iowa State Senate District 31?
William A. Dotzler Jr. (Democratic) currently holds this State Senate seat.
What was the 2024 result in Iowa State Senate District 31?
Precinct-level 2024 results for this race are being added.
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.