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Start at Scan Check Protect →Allegheny County, Pennsylvania
Check your Allegheny County registration.
Confirm what the commonwealth has on file first, then use Allegheny County's official election channels below.
About Allegheny County
Allegheny County is a large urban county in Pennsylvania, United States. As of the 2025 census estimate, the population was 1,225,035, a 2% decrease of 25,543 residents since 2020, making it the state's second-most populous county, after Philadelphia County. Its county seat and largest city is Pittsburgh, Pennsylvania's second largest city. The county is part of the Greater Pittsburgh region of the commonwealth, and is the center of the Pittsburgh media market.
Description adapted from Wikipedia, CC BY-SA 4.0.
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Ask Allegheny County directly
Your county election office handles registration, mail ballots, and polling places.
Allegheny County election office →Official channels
Allegheny County election resources
Allegheny County election office · (412) 350-4500. Statewide tools and every Pennsylvania resource in one place: the Pennsylvania page at Scan Check Protect →
Part of Pennsylvania Voter Check
This is the Allegheny County page of Pennsylvania Voter Check, a project of True the Vote, pointing Pennsylvania voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Allegheny County or the Pennsylvania Department of State publishes, they are right and this page is not.