Delaware County, Pennsylvania: Government Structure and Services

Delaware County occupies approximately 184 square miles in the southeastern corner of Pennsylvania, directly southwest of Philadelphia, and ranks among the most densely populated counties in the Commonwealth. The county operates under a home rule charter adopted in 1975, which distinguishes its governance structure from Pennsylvania's default third-class county framework. This page covers the county's elected and appointed offices, core service delivery functions, how county government interacts with the 49 municipalities within its borders, and the boundaries that define county authority versus state or municipal jurisdiction.

Definition and scope

Delaware County — often referred to locally as "Delco" — is governed under a five-member elected County Council, the direct product of its home rule charter. This charter, effective January 1, 1976, replaced the three-member Board of Commissioners structure previously used under the Pennsylvania County Code. The shift to home rule granted Delaware County expanded authority to organize its own government, set internal administrative structure, and enact local ordinances not in conflict with Pennsylvania statute or the Pennsylvania Constitution.

The county seat is Media, Pennsylvania, which houses the primary courthouse complex and the majority of administrative offices. Delaware County's population, recorded at 576,830 in the 2020 U.S. Census (U.S. Census Bureau, 2020 Decennial Census), places it fifth among Pennsylvania's 67 counties by population.

Scope and coverage: This page addresses governmental structure and services as administered by Delaware County itself. It does not cover the 49 individual municipalities — boroughs, townships, and cities — that retain independent governing authority within county borders. Nor does it address Philadelphia County, which is adjacent and operates under a consolidated city-county structure entirely distinct from Delaware County's framework. State-level functions administered by Commonwealth agencies — such as the Pennsylvania Department of Transportation, the Pennsylvania Department of Health, or the Pennsylvania Department of Human Services — fall outside the scope of county governance as described here, though county offices frequently serve as delivery points for state-funded programs.

How it works

Delaware County government operates through two structural tracks: elected constitutional officers whose positions are defined by Pennsylvania law, and administrative departments appointed under the home rule charter's executive framework.

Elected County Council holds legislative and executive authority jointly. Five council members serve four-year staggered terms. The council sets the annual budget, levies property taxes, confirms major appointments, and enacts county ordinances.

Elected row officers include positions established under Pennsylvania statute that exist independently of the charter:

  1. Sheriff — responsible for courthouse security, service of civil process, and the county jail transport function.
  2. Coroner — investigates deaths occurring under circumstances requiring official determination of cause and manner.
  3. District Attorney — prosecutes criminal matters within the county's Court of Common Pleas jurisdiction.
  4. Controller — performs independent financial audits and pre-audits county expenditures.
  5. Clerk of Courts — maintains court records for the Court of Common Pleas.
  6. Register of Wills / Clerk of Orphans' Court — processes probate filings, estate administration, and adoptions.
  7. Recorder of Deeds — records real property documents, mortgages, and deeds.
  8. Treasurer — manages county funds and investment of idle balances.
  9. Assessment Appeals Board — hears property assessment challenges under Pennsylvania's General County Assessment Law.

The county's Court of Common Pleas, part of Pennsylvania's unified judicial system rather than a county government organ, handles civil, criminal, family, and orphans' court matters. Judges are elected under statewide Pennsylvania judicial election rules administered through the Pennsylvania Judicial Branch.

Administrative departments — including Human Services, Public Health, Emergency Services, Parks and Recreation, and Planning and Regulatory Affairs — report to a professionally appointed Chief Administrative Officer under the home rule structure. This separates day-to-day management from the elected council's policy function.

Common scenarios

The most frequent interactions residents and professionals have with Delaware County government fall into the following categories:

Decision boundaries

Several jurisdictional boundaries determine which level of government applies to a given function in Delaware County.

County vs. municipal authority: Municipalities retain control over zoning, local police, building permits, and local ordinances. The county exercises no zoning authority over municipal territory. However, the county's Planning Department reviews subdivision plans that require county approval under state subdivision and land development regulations.

County vs. state authority: The Commonwealth sets property tax assessment methodology, inheritance tax rates, criminal sentencing guidelines, and judicial structure. Delaware County administers within those frameworks but cannot alter the underlying statutory requirements. For example, the county's assessment ratio is subject to Pennsylvania's Consolidated County Assessment Law (53 Pa.C.S. §§ 8801–8868).

Home rule vs. general law counties: Delaware County's home rule charter status differentiates it from third-class counties still operating under the Pennsylvania County Code of 1955. Under home rule, the county can reorganize administrative departments by council ordinance without legislative action in Harrisburg — a flexibility unavailable to general-law counties. Bucks County, Pennsylvania and Chester County, Pennsylvania, both adjacent to Delaware County, each also operate under home rule frameworks, while counties such as Montgomery County, Pennsylvania adopted a comparable home rule structure in 1976.

For a broader orientation to how county government fits within Pennsylvania's layered governmental framework, the Pennsylvania Government Authority index provides structured reference to statewide and regional governmental bodies. Additional context on regional governmental dynamics in the southeastern Pennsylvania area is documented under Philadelphia Metropolitan Area Government, which addresses cross-jurisdictional structures including the Delaware Valley Regional Planning Commission, a federally designated metropolitan planning organization serving the five-county Philadelphia region.

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