Philadelphia Metropolitan Area: Regional Government and Governance

The Philadelphia metropolitan area operates under one of the most structurally complex regional governance arrangements in the northeastern United States, encompassing multiple counties across two states and a patchwork of municipal, county, and special-purpose authorities. This page covers the geographic scope of the region, the layered mechanisms through which governmental functions are allocated, common administrative scenarios that arise from cross-jurisdictional boundaries, and the decision thresholds that determine which governmental body holds authority. The region's governance structure is directly relevant to infrastructure planning, public transit, land use, and emergency coordination affecting more than 6 million residents.

Definition and scope

The Philadelphia–Camden–Wilmington Metropolitan Statistical Area (MSA), as defined by the U.S. Office of Management and Budget, spans 11 counties across Pennsylvania, New Jersey, and Delaware. The Pennsylvania portion includes Philadelphia County, Bucks County, Chester County, Delaware County, and Montgomery County — the five-county Southeastern Pennsylvania region that anchors the MSA's population and economic weight (U.S. Census Bureau, Metropolitan Statistical Area Definitions).

Philadelphia County itself is coterminous with the City of Philadelphia, meaning the city and county function as a single consolidated government under the Philadelphia Home Rule Charter, adopted in 1951. This consolidation is the exception in the region, not the rule. The four surrounding collar counties — Bucks, Chester, Delaware, and Montgomery — each maintain separate county governments, school districts, and municipal structures. These four counties collectively contain more than 230 distinct municipalities, each with its own zoning authority, local police jurisdiction (where applicable), and tax-levying power under Pennsylvania's Third Class City Code and Borough Code.

The scope covered here is limited to the Pennsylvania portion of the MSA. Governance structures in Camden County (New Jersey) or New Castle County (Delaware), while part of the broader metropolitan economy, fall under the laws of those respective states and are not addressed on this page. For the broader Pennsylvania governmental framework, the Pennsylvania Government Authority index provides a structured entry point into the full state governance landscape.

How it works

Regional governance in the Philadelphia metropolitan area functions through four overlapping layers:

1. Municipal government — Boroughs, townships (first and second class), and cities exercise home rule powers over land use, local policing, and primary public services. The region's 230-plus municipalities in the collar counties reflect Pennsylvania's Municipalities Planning Code (53 P.S. § 10101 et seq.), which grants zoning and subdivision authority to local governments.

2. County government — Each of the five Pennsylvania counties operates under an elected Board of Commissioners (or, in Philadelphia's case, City Council and Mayor). County governments administer courts, elections, property assessment, human services, and certain land use overlay programs. Montgomery County, with a 2020 Census population of approximately 856,000 (U.S. Census Bureau), is among the most populous counties in Pennsylvania.

3. Regional and special-purpose authorities — The Southeastern Pennsylvania Transportation Authority (SEPTA), established under the Metropolitan Transportation Authorities Act of 1963, provides transit service across all five Pennsylvania counties and into New Jersey and Delaware via interstate compacts. The Delaware Valley Regional Planning Commission (DVRPC) serves as the federally designated Metropolitan Planning Organization (MPO) for the region, coordinating transportation and land use planning across nine counties in Pennsylvania and New Jersey (DVRPC).

4. State agency direct administration — The Pennsylvania Department of Transportation maintains direct jurisdiction over state roads and highways. The Pennsylvania Department of Environmental Protection administers permitting for air quality, stormwater, and brownfield remediation within the region under state and federal environmental statutes.

The contrast between Philadelphia County's consolidated model and the collar counties' fragmented municipal structure produces fundamentally different administrative pathways for the same type of service. A building permit in Philadelphia flows through a single city agency; the same permit in a Montgomery County township flows through a local township office operating under its own independently adopted zoning ordinance.

Common scenarios

Regional governance decisions in the Philadelphia metropolitan area typically arise in the following operational contexts:

• Transportation corridor planning — SEPTA fare policy and capital projects require coordination among the SEPTA Board (composed of appointees from each of the five Pennsylvania counties and the Commonwealth), DVRPC, and the Federal Transit Administration under 49 U.S.C. § 5307 urbanized area formula grant requirements.
• Stormwater and watershed management — The Philadelphia combined sewer overflow (CSO) consent order, overseen by the Pennsylvania Department of Environmental Protection and the U.S. Environmental Protection Agency, imposes compliance obligations on the City of Philadelphia while upstream municipalities in the collar counties manage separate MS4 (Municipal Separate Storm Sewer System) permits.
• Emergency management coordination — The five-county region operates under the Pennsylvania Emergency Management Services Code (35 Pa. C.S. § 7101 et seq.), with each county maintaining its own Emergency Management Coordinator while the Pennsylvania Emergency Management Agency provides state-level coordination.
• Economic development zones — The Pennsylvania Department of Community and Economic Development administers Keystone Opportunity Zones and other enterprise zone designations across the region, with designations requiring both municipal adoption and state certification.

Decision boundaries

The allocation of authority between layers of the Philadelphia metropolitan governance structure follows statutory and constitutional rules that are not discretionary:

• Land use authority rests exclusively at the municipal level for zoning and subdivision under the Municipalities Planning Code. County planning commissions have advisory roles only; they cannot override local zoning decisions.
• Taxing authority is divided by class of government. Philadelphia City/County imposes a wage tax, sales tax supplement, and real estate tax under its consolidated charter. Collar county municipalities may levy earned income taxes under Act 32 of 2008 (72 P.S. § 7340 et seq.), but the rate and administration are governed by county-level tax collection districts.
• Interstate matters — Any governance function crossing into New Jersey or Delaware (e.g., the Delaware River Port Authority, operating under an interstate compact ratified by both Pennsylvania and New Jersey) falls outside Pennsylvania's unilateral jurisdiction and requires compact-specific governance structures.
• State preemption — Pennsylvania law preempts local firearms regulation (18 Pa. C.S. § 6120), pesticide regulation, and certain telecommunications infrastructure siting decisions, removing those topics from regional or local authority regardless of local ordinance.

The Philadelphia city government page addresses the internal administrative structure of the consolidated city-county in greater detail.

References

• U.S. Census Bureau — Metropolitan and Micropolitan Statistical Area Definitions
• Delaware Valley Regional Planning Commission (DVRPC)
• Southeastern Pennsylvania Transportation Authority (SEPTA)
• Pennsylvania Municipalities Planning Code, 53 P.S. § 10101
• Pennsylvania Emergency Management Services Code, 35 Pa. C.S. § 7101
• City of Philadelphia Home Rule Charter
• Pennsylvania Department of Environmental Protection
• Pennsylvania Department of Community and Economic Development
• Act 32 of 2008, Local Earned Income Tax, 72 P.S. § 7340
• Federal Transit Administration — Urbanized Area Formula Grants, 49 U.S.C. § 5307