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Updated October 22, 2026, 09:28 UTC

State legislatures › Massachusetts Senate

Massachusetts Senate District First Essex and Middlesex

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

Decided: only a Republican is running · Bruce E. Tarr (R)

Massachusetts Senate District First Essex and Middlesex: Decided: only a Republican is runningMassachusetts Senate Fifth Middlesex: chance of a Democratic win >99%; 2024 president D+34Massachusetts Senate Second Essex: chance of a Democratic win >99%; 2024 president D+24Massachusetts Senate Second Essex and Middlesex: chance of a Democratic win 97%; 2024 president D+16Massachusetts Senate Third Essex: chance of a Democratic win >99%; 2024 president D+19New Hampshire Senate 23: chance of a Democratic win 1%; 2024 president R+17Massachusetts Senate District First Essex and Middlesex: Decided: only a Republican is runningSecond EssexThird EssexNH 23First Essex and Middlesex
Safe DLean DToss-upLean RSafe RHatched: not up in 2026 (shaded by holder) · dashed: other state

District First Essex and Middlesex is safe Republican. Of its 5 neighbouring districts, 4 favour Democrats, 1 favours Republicans. 1 of them is across the state line.

StatusDecided: only a Republican is running
CandidatesBruce E. Tarr (R)
Candidate list fromofficial
Current memberBruce Tarr

How it has voted

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

Legislature 2024uncontested (R)
President 2024D+23
← RepublicanDemocratic →

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtMassachusetts
Median household income$132,026$101,341
Bachelor's degree or more (25+)56%47%
Median age4740
White (not Hispanic)89%68%
Black1%7%
Hispanic4%13%
Asian2%7%
Born abroad7%18%
Jobs in manufacturing9%9%
Jobs in farming or mining1%0%

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.