Florida County Government Overview — Florida

Florida is divided into 67 counties, each constituted as a political subdivision of the state under Article VIII of the Florida Constitution and governed through the framework established by Chapter 125 of the Florida Statutes. The Florida Association of Counties describes counties as the oldest form of local government in the American system; in Florida, they trace directly to the territorial period and remain the primary interface between state government and residents. Counties administer courts, maintain roads and bridges, operate property records, oversee elections, manage public health departments, and coordinate emergency management across the state. For roughly 40 percent of Floridians living in unincorporated areas outside any municipal boundary, county government is the sole general-purpose local government serving them. Florida distinguishes between 20 charter counties — which have adopted home-rule governing documents through voter referendum — and 47 non-charter counties that operate under the default framework of general state law. This structural diversity, spanning consolidated city-county governments, professional administrator models, and traditional commission boards, reflects the state's varied population scale, urbanization patterns, and political history.

Florida's county system began on July 21, 1821, when Territorial Governor Andrew Jackson created the state's first two counties — Escambia in the northwest and St. Johns in the northeast — immediately after Spain ceded the territory to the United States. As the Florida Historical Society records, both counties originally covered all of present-day Florida, with population concentrated at Pensacola and St. Augustine, and the Suwannee River serving as the rough dividing line between them. All 65 subsequent counties were carved from those two originals. The last county formed, Gilchrist County, was established in 1925. Florida was admitted to the Union as the 27th state on March 3, 1845, and its county structure evolved in step with population growth through the 19th and early 20th centuries.

The constitutional framework for county governance was significantly modernized in 1968, when Florida voters approved an amendment granting local residents the power to adopt county charters. Under Article VIII, Section 1(c) of the Florida Constitution, as the Florida Association of Counties documents, a charter can only be adopted, revised, or repealed by a vote of county residents at a special election. Miami-Dade County preceded this amendment by establishing a pioneering federated government structure as early as 1957, making it the first charter county in Florida. Duval County followed a different path, consolidating with the City of Jacksonville by charter in 1967 — effective 1968 — under Chapter 67-1320 of the Laws of Florida, as documented in the Florida Local Government Formation Manual, creating Florida's only consolidated city-county government.

The governing body of each Florida county is the Board of County Commissioners (BCC). Under the Florida Constitution and confirmed by Florida Attorney General opinions, the BCC is composed of five members serving staggered four-year terms, unless a charter provides otherwise. Following each decennial census, commissioners are required to redraw district boundaries. The Florida Bar Journal notes that in non-charter counties, county ordinances may not override municipal ordinances in the event of a conflict within incorporated areas.

The Florida County Government Guide identifies three functional forms of county government in Florida. Approximately ten counties operate under the traditional county commission model, where the elected commissioners collectively administer county functions without a separate executive officer. Approximately 54 counties use the commission-administrator or commission-manager model, in which the BCC appoints a professional administrator or manager to oversee day-to-day operations. Three counties use the commission-executive model, which includes the consolidated Duval/Jacksonville government and Miami-Dade. As of 2026, the 20 charter counties are: Alachua, Brevard, Broward, Charlotte, Clay, Columbia, Duval, Hillsborough, Lee, Leon, Miami-Dade, Orange, Osceola, Palm Beach, Pinellas, Polk, Sarasota, Seminole, Volusia, and Wakulla, as confirmed by the Polk County government and the Florida Senate.

Separate from the Board of County Commissioners, the Florida Constitution establishes five county constitutional officers who are independently elected by county voters in each of the 67 counties: the Sheriff, Tax Collector, Property Appraiser, Supervisor of Elections, and Clerk of the Circuit Court. As Miami-Dade County government documents, these offices operate independently from county government itself; their authority derives directly from the state constitution rather than from the BCC.

The Clerk of the Circuit Court serves a dual function: as clerk to the courts and as ex officio clerk to the Board of County Commissioners, a structure that provides institutional checks and balances within county governance. The Property Appraiser's budget is set on a formula tied to ad valorem property tax revenues and must be approved by the Florida Department of Revenue, as the Levy County Supervisor of Elections office documents.

On November 6, 2018, Florida voters approved Amendment 10 to the state constitution, which mandated that all five constitutional officer positions be elected in every county and prohibited county charters from abolishing, consolidating, or converting these offices to appointed positions. As the Florida Bar Journal explains, Amendment 10 directly removed authority that charter counties had previously exercised. For most counties, the amendment took effect in 2021. Miami-Dade and Broward — which had previously absorbed several constitutional officer functions into appointed county positions — were required to complete the transition by January 7, 2025, as confirmed by Miami-Dade County and reported by WLRN.

Under Florida Statutes § 125.01, the Board of County Commissioners holds broad legislative and administrative authority over unincorporated areas and county-wide functions. Enumerated powers in the 2023 Florida Statutes include adopting ordinances, setting millage rates, providing fire protection, establishing and operating public libraries and airports, constructing and maintaining roads, managing solid waste systems, and creating zoning regulations. The Florida Center for Instructional Technology at the University of South Florida notes that counties also administer courts, prisons, parks, and health care, and that each of Florida's 67 counties contains one school district.

A distinctive tool available to Florida counties under Chapter 125 is the Municipal Service Taxing Unit (MSTU). As defined in the 2024 Local Government Financial Information Handbook published by the Florida Office of Economic and Demographic Research, an MSTU allows a county to levy ad valorem taxes within a defined geographic zone — typically an unincorporated neighborhood or community — to fund targeted services such as fire protection, road lighting, recreation, or law enforcement that are distinct from the countywide tax levy. This is distinct from a Municipal Service Benefit Unit (MSBU), which is funded through special assessments rather than taxes. Counties also manage dependent special districts under Chapter 189 of the Florida Statutes, covering functions including water management, mosquito control, hospital districts, and community redevelopment areas. Annual financial data for all county governments is reported to the state under Florida Statutes § 218.32 and compiled by the Florida Office of Economic and Demographic Research.

Florida's 67 counties span an extensive range of population, geography, and governance form. Miami-Dade County, the most populous, records over 2.7 million residents, while Liberty County in the Panhandle is home to fewer than 10,000. The five most populous counties — Miami-Dade, Broward, Palm Beach, Hillsborough, and Orange — are all charter counties and collectively anchor the state's southeastern and central economic cores. All five operate under either the commission-administrator or commission-executive model, reflecting the administrative complexity their population scale demands.

The Panhandle and north-central Florida counties tend to be smaller in population, largely non-charter, and more rural, with governance structures closer to the traditional commission model described in the Florida County Government Guide. The consolidated Duval/Jacksonville government, created in 1967 under Chapter 67-1320 of the Laws of Florida, represents a unique structural experiment in Northeast Florida that has not been replicated elsewhere in the state. Among the 20 charter counties, geographic spread is notable: Wakulla County in the Panhandle, Alachua County in north-central Florida, and Columbia County in the interior all adopted charters alongside the large coastal urban counties, demonstrating that the charter model is not exclusively a product of metropolitan growth.

The most consequential structural change to Florida county government in recent years was the implementation of Amendment 10, approved by voters on November 6, 2018. As the Florida Bar Journal analyzed, Amendment 10 stripped county charters of the authority to abolish or convert constitutional officer positions to appointed roles. For Miami-Dade and Broward counties, the transition deadline was January 7, 2025, when all five constitutional offices — Sheriff, Tax Collector, Property Appraiser, Supervisor of Elections, and Clerk of the Circuit Court — were required to begin operating independently for the first time in decades, as confirmed by Miami-Dade County government.

In the 2025 and 2026 legislative sessions, Florida county governments have confronted a potentially transformational fiscal threat from state proposals to eliminate property taxes on homesteaded properties. The Florida Policy Institute estimates that depending on the version enacted, such elimination could cost counties and cities between $6.7 billion and $18.3 billion annually in lost revenue. The Florida House passed HJR 203 during the 2026 session to phase out homestead property taxes, but the Senate did not act on the measure. WGCU documented warnings from county officials that such elimination would undercut the authority of local government to respond nimbly to residents' needs — continuing a broader pattern of tension between state preemption and county home rule that has intensified since 2019.