Miami-Dade County Departments and Agencies Directory

Miami-Dade County operates one of the largest county government structures in the United States, with more than 30 distinct departments and agencies delivering services to a population that the U.S. Census Bureau estimated at approximately 2.7 million residents. This directory explains how county departments are organized, how residents interact with them, and how to determine which department handles a specific need. Understanding the structure is essential for navigating permitting, public records, social services, law enforcement, infrastructure, and dozens of other government functions that operate at the county rather than municipal level.

Definition and scope

Miami-Dade County operates under a home-rule charter adopted in 1957 (Miami-Dade County Charter), which established a consolidated metropolitan government — commonly called "Metro-Dade" in its early form — that grants the county authority to deliver services both within and across the 34 incorporated municipalities that sit inside county borders. The departments and agencies referenced in this directory are units of the county government, not the governments of individual cities such as the City of Miami, Miami Beach, or Coral Gables.

A department in Miami-Dade County is typically a line agency headed by a director who reports to the County Manager, who in turn is accountable to the Miami-Dade Board of County Commissioners. An agency or authority may carry a degree of operational independence, governed by its own board, but still functions within the county's statutory framework.

The Miami-Dade County Charter places executive authority over most departments with the Mayor, who also appoints the County Manager. The full Miami-Dade County Government structure, including the separation between the legislative commission and the executive branch, shapes how each department receives its budget appropriation and policy mandate.

Scope of this directory:
This page covers departments and agencies that are units of Miami-Dade County government. It does not address the independent municipal governments of the 34 cities and towns within county borders, Florida state agencies operating field offices in the county, or federal agencies physically located in Miami-Dade. For the broader governmental landscape, the Miami Government in Local Context reference provides comparative framing.

How it works

County departments are funded through the annual Miami-Dade County Budget, which the Board of County Commissioners adopts each fiscal year. The Mayor submits a proposed budget; commissioners vote on amendments and final adoption. Each department receives a line appropriation and is accountable for performance through the Office of Management and Budget.

Residents and businesses typically encounter county departments through one of three pathways:

  1. Regulatory contact — applying for permits, licenses, or approvals administered by departments such as the Department of Regulatory and Economic Resources (RER) or the Miami-Dade Building Permits and Inspections function.
  2. Service delivery — receiving direct services such as water and sewer from Miami-Dade Water and Sewer, transit from Miami-Dade Transit, or refuse collection through Miami-Dade Solid Waste Management.
  3. Administrative and legal processes — interacting with the Miami-Dade Clerk of Courts, the Miami-Dade Tax Collector, or the Miami-Dade Elections Department.

Some agencies, such as the Miami-Dade Police Department, serve as the primary law enforcement authority for unincorporated areas and also provide contract policing to incorporated municipalities that choose not to operate their own departments. Others, such as Miami-Dade Fire Rescue, operate countywide under interlocal agreement with participating municipalities.

The distinction between countywide services and unincorporated area services is structurally important. Countywide departments — including Miami-Dade Health Department, the Miami-Dade Property Appraiser, and the Miami-Dade Medical Examiner Department — serve all residents regardless of whether they live inside a city. Unincorporated area services are funded through a separate UMSA (Unincorporated Municipal Service Area) taxing district and do not apply to residents of incorporated cities, who pay their own municipal taxes for equivalent services.

Common scenarios

Scenario 1 — Building a structure or pool: A property owner in unincorporated Miami-Dade applies for a permit through RER. A property owner in the City of Miami applies through the City of Miami's own building department. The county department does not have jurisdiction inside incorporated cities for local permitting, with limited exceptions for state-mandated inspections.

Scenario 2 — Property tax and valuation: The Miami-Dade Property Appraiser determines the assessed value of all real property countywide — including properties inside incorporated cities. The Miami-Dade Tax Collector then collects taxes on behalf of all taxing authorities, including municipalities, the school board, and special districts. Both offices serve the entire county regardless of city boundaries.

Scenario 3 — Public records: Requests for county records go to the originating department or the Miami-Dade Public Records Requests office. Requests for city records go to the relevant municipality's clerk. Florida's Government-in-the-Sunshine Law (Chapter 119, Florida Statutes) governs both, but the responding entity differs.

Scenario 4 — Criminal justice: The Miami-Dade State Attorney's Office handles prosecution for the entire county, while the Miami-Dade Public Defender represents indigent defendants. The Miami-Dade Corrections and Rehabilitation department operates the county jail system. The Miami-Dade Judiciary — the Eleventh Judicial Circuit — is a state court, not a county department, though it operates courthouses within county facilities.

Decision boundaries

Determining the correct department requires resolving two primary questions: jurisdiction (county or municipal?) and function (which agency within county government?).

County vs. municipal jurisdiction:

Factor County Department Applies Municipal Department Applies
Property location Unincorporated Miami-Dade Inside an incorporated city
Property tax valuation Always county (Appraiser) N/A — no municipal equivalent
Law enforcement Unincorporated areas and contract cities Cities with own police (e.g., Miami Police Department)
Elections administration All voters countywide N/A — elections are county-administered
Environmental regulation Countywide (Miami-Dade Environmental Regulation) City codes may supplement but not replace

Selecting the correct county department:

Once county jurisdiction is confirmed, the function determines the department. Key distinctions:

For residents uncertain where to begin, the main directory provides a starting orientation across all major subject areas covered in this reference. The How to Get Help for Miami Government resource offers a procedural guide for common navigation challenges, and the Miami-Dade County Departments reference page covers individual agency profiles in greater depth.

References

Read Next

City of Miami Government: Structure and Administration ANA › United States Authority › Florida State Authority › Miami Metro Authority › City of Miami Government: Structure and... City of Miami Beach Government and Administration ANA › United States Authority › Florida State Authority › Miami Metro Authority › City of Miami Beach Government and... City of Coral Gables Government and Services ANA › United States Authority › Florida State Authority › Miami Metro Authority › City of Coral Gables Government and Services...