A. Core County Responsibilities

Allegheny County’s government provides services that:

Key County Jurisdiction Areas:

  1. Elections & Voter Registration
    • Manages voter rolls, polling places, mail-in ballots, election certification.
  2. Judiciary & Courts
    • Court of Common Pleas (criminal, civil, family, orphans).
    • District judges (magisterial).
    • Jury services and court administration.
  3. Law Enforcement & Corrections
    • County Jail (pre-trial detainees, short sentences).
    • Sheriff (court security, transport, evictions).
    • District Attorney (criminal prosecutions).
    • Medical Examiner (cause of death, forensic services).
  4. Public Health
    • Allegheny County Health Department: restaurant inspections, air quality enforcement, disease surveillance, immunizations.
  5. Human Services
    • Department of Human Services (DHS): child protection, foster care, homelessness, aging, intellectual disabilities, behavioral health.
  6. Transit & Mobility
    • Oversight and funding of Pittsburgh Regional Transit (buses, light rail, inclines).
    • Regional airport operations (via Airport Authority).
  7. Infrastructure & Parks
    • County-owned bridges and roads.
    • Nine county parks (e.g., North Park, South Park).
    • Regional facilities like swimming pools, golf courses, ice rinks.
  8. Property Assessment & Taxation
    • Maintains property assessment system for taxation by county, municipalities, and school districts.

B. Areas Primarily State Jurisdiction (with County Interaction)


C. Areas Primarily Municipal Jurisdiction (County Support Role)


D. Overlap & Shared Jurisdiction


E. Jurisdictional Boundaries in Daily Life


Summary

Allegheny County’s jurisdiction is regional and connective: it runs elections, courts, jail, health, human services, transit, and assessments. Municipalities handle neighborhood services (police, zoning, trash). The state sets the legal framework and funds major systems. The county is the middle layer — not as local as borough councils, not as overarching as Harrisburg, but the crucial coordinator ensuring services exist across 130 municipalities.