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

Updated October 22, 2026, 09:28 UTC

State legislatures › New York Assembly

New York Assembly District 104

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

Decided: only a Democrat is running · Jonathan G. Jacobson (D)

New York Assembly District 104: Decided: only a Democrat is runningNew York Assembly 101: chance of a Democratic win <1%; 2024 president R+10New York Assembly 103: chance of a Democratic win >99%; 2024 president D+33New York Assembly 105: chance of a Democratic win 4%; 2024 president R+10New York Assembly 106: chance of a Democratic win 99%; 2024 president D+14New York Assembly 99: chance of a Democratic win 99%; 2024 president R+19New York Assembly District 104: Decided: only a Democrat is running99105103106101104
Safe DLean DToss-upLean RSafe RHatched: not up in 2026 (shaded by holder) · dashed: other state

District 104 is safe Democratic. Of its 5 neighbouring districts, 3 favour Democrats, 2 favour Republicans.

StatusDecided: only a Democrat is running
CandidatesJonathan G. Jacobson (D)
Candidate list fromofficial
Current memberJonathan Jacobson

How it has voted

On its current lines. Legislative contests and the top-of-ticket vote inside the district.

Legislature 2022uncontested (D)
Governor 2022D+10
Legislature 2024uncontested (D)
President 2024D+21
← RepublicanDemocratic →

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtNew York
Median household income$79,280$84,578
Bachelor's degree or more (25+)32%40%
Median age4040
White (not Hispanic)47%53%
Black18%14%
Hispanic27%20%
Asian2%9%
Born abroad15%23%
Jobs in manufacturing6%6%
Jobs in farming or mining1%1%

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.