Election forecasts you can inspect.Tested models, shown with their sources and their uncertainty.

Updated October 22, 2026, 09:28 UTC

State legislatures › Wisconsin Senate

Wisconsin Senate District 29

2026 forecast · Updated October 22, 2026, 09:28 UTC

2% chance of a Democratic win · Cory Tomczyk (R), Gillian Battino (D)

Wisconsin Senate District 29: Forecast (lines redrawn; start rebuilt from 2024 votes)Wisconsin Senate 12: not up in 2026 (held by republican); 2024 president R+25Wisconsin Senate 19: chance of a Democratic win <1%Wisconsin Senate 2: not up in 2026 (held by republican); 2024 president R+28Wisconsin Senate 23: chance of a Democratic win <1%Wisconsin Senate 24: not up in 2026 (held by republican); 2024 president R+16Wisconsin Senate District 29: Forecast (lines redrawn; start rebuilt from 2024 votes)21924231229
Safe DLean DToss-upLean RSafe RHatched: not up in 2026 (shaded by holder) · dashed: other state

District 29 is safe Republican. Of its 5 neighbouring districts, 5 favour Republicans.

StatusForecast (lines redrawn; start rebuilt from 2024 votes)
Chance of a Democratic win2%
Likely margin (80% range)R+33 to R+10, middle R+22
CandidatesCory Tomczyk (R), Gillian Battino (D)
Candidate list fromwikipedia
Current memberCory Tomczyk
Linesredrawn since the last election; Census figures below are on the earlier lines

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtWisconsin
Median household income$71,175$75,670
Bachelor's degree or more (25+)26%33%
Median age4340
White (not Hispanic)87%79%
Black1%6%
Hispanic3%8%
Asian4%3%
Born abroad3%5%
Jobs in manufacturing20%18%
Jobs in farming or mining3%2%

Initial version. This model was tested on every state legislative election from 1994 to 2024 before publication, forecasting each as if it had not happened. It beat the simple rule “the party that holds the seat keeps it”, and its chamber seat counts were off by 2.9 seats on average (target: under 3). Districts with no two-party race last time are read from their own presidential vote, a change tested in advance that cut their average error from 17 to 13 points. It missed one of its five accuracy targets: in 2024, the calmest year on record, its ranges were wider than they needed to be (92% of results fell inside its 80% ranges; target: at most 88%). Treat the ranges as cautious. The full test record and code.