The Ballot Brief
Allegheny County, Pennsylvania

Pennsylvania House District 42

One candidate is tracked for Pennsylvania House District 42 on the November 3, 2026 ballot: Jen Mazzocco. Candidate information follows official Allegheny County election filings; verify with the official election office linked below.

About this race

Jen Mazzocco (Democratic) is the only major-party candidate on the November 3 ballot; Jen Mazzocco is the sitting member, per the General Assembly's roster. Jen Mazzocco was unopposed in the Democratic primary. Pennsylvania nominates by plurality (no runoffs); unopposed nominees still print. The field is the Department of State's official May 19 primary returns (electionreturns.pa.gov) with the Department's post-primary withdrawal listing; independent and minor-party candidates who filed nomination papers are added when the Department of State posts the certified general-election list. This seat is elected by district; only the district covering your address appears on your ballot.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Jen Mazzocco, is on the ballot. One name is on the ballot for this seat.

Pennsylvania › Allegheny County › Pennsylvania House District 42

Jen Mazzocco

Jen Mazzocco

Democratic Incumbent

Biography

Jen Mazzocco is a teacher with a master's degree in teaching secondary English from the University of Pittsburgh. She represents Pennsylvania House District 42 in Allegheny County and serves on the Communications & Technology, Environmental & Natural Resource Protection, Finance, and Transportation committees, per the Pennsylvania General Assembly's website. No campaign website was found as of September 7, 2026.

Next on your ballotPennsylvania House District 44

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Voting info and more

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Questions about this race

Who is running for Pennsylvania House District 42 in 2026?

One candidate is tracked for Pennsylvania House District 42 on the November 3, 2026 ballot: Jen Mazzocco. Candidate information follows official Allegheny County election filings; verify with the official election office linked below.

When is the Pennsylvania House District 42 election in Pennsylvania?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Pennsylvania are on the Pennsylvania election hub at theballotbrief.com.

How do I see my exact Allegheny County ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official Allegheny County and state election office filings. Bios and priorities carry their attribution inline.

Cross-check with the official Pennsylvania election office, or see the full Allegheny County sample ballot and your exact ballot by address.

The rest of your Allegheny County ballot

23 tracked races in Allegheny County, Pennsylvania. Landed here from another county's search? Look up your own ballot below.

Also on your ballot
Pennsylvania House District 45Pennsylvania House District 46Pennsylvania Senate District 38See all 23 Allegheny County races
Candidate profiles
Jen Mazzocco, full profileOfficial Pennsylvania election office