Cobb County Georgia Government: Structure and Services

Cobb County operates as one of Georgia's most populous and administratively complex county governments, serving a jurisdiction of approximately 760,000 residents in the northwest Atlanta metropolitan area. The county's governmental structure is defined by Georgia state law, which establishes the powers, obligations, and organizational framework for all 159 of Georgia's counties. This page covers the structural composition of Cobb County government, its core service delivery mechanisms, common resident-facing scenarios, and the legal and administrative boundaries that define its authority.

Definition and scope

Cobb County is a general-purpose local government operating under the authority granted by the Georgia State Constitution and the Georgia Code, Title 36 (Local Government). As a county government, Cobb exercises both state-delegated powers — acting as an administrative arm of Georgia's state government — and home-rule powers, which allow it to enact ordinances and manage local affairs not expressly prohibited by state law.

The governing body is the Cobb County Board of Commissioners, composed of a Chairman elected county-wide and 4 District Commissioners, each representing one of the county's 4 geographic commission districts. The Board of Commissioners holds legislative and executive authority over county operations, including budget adoption, zoning decisions, and department oversight. Separate elected constitutional officers — including the Sheriff, Tax Commissioner, Probate Court Judge, Clerk of Superior Court, and Solicitor-General — operate independently of the Board in their respective statutory functions.

Scope limitations: Cobb County government does not govern the incorporated municipalities within its boundaries. The cities of Marietta (the county seat), Smyrna, Kennesaw, Acworth, Austell, Powder Springs, and Mableton hold separate municipal charters and manage their own city services. Residents of these cities are subject to both county and municipal jurisdiction, but city-specific ordinances, property taxes, and services fall under municipal authority, not county authority. This page does not address municipal government operations.

How it works

Cobb County government delivers services through a departmental structure under the administrative direction of a County Manager, a professional administrator appointed by the Board of Commissioners. The County Manager oversees day-to-day operations, department heads, and budget execution.

Core service delivery functions are organized as follows:

1. Public Safety — The Cobb County Sheriff's Office provides law enforcement and detention services, while the Cobb County Police Department (a separate agency reporting to county administration) handles patrol and criminal investigation within unincorporated areas. The Cobb County Fire and Emergency Services operates across 27 fire stations.

2. Transportation and Infrastructure — The Department of Transportation manages approximately 2,400 centerline miles of county roads, traffic engineering, and stormwater infrastructure in unincorporated Cobb.

3. Tax Administration — The Tax Commissioner's Office, an independently elected constitutional office, administers property tax billing and collection, motor vehicle registration, and ad valorem tax processing under Georgia Department of Revenue guidelines.

4. Planning and Zoning — The Community Development Agency administers land use, building permits, zoning, and code enforcement for unincorporated Cobb County.

5. Public Health — The Cobb & Douglas Public Health agency operates as a district health department under the authority framework of the Georgia Department of Public Health, providing clinical, environmental, and community health services.

6. Courts — The Cobb County Superior Court, State Court, Magistrate Court, Probate Court, and Juvenile Court constitute the local judicial system. Superior Court judges are elected in nonpartisan elections and operate under the jurisdiction of the Georgia Judicial Branch.

7. Libraries — The Cobb County Public Library System operates 15 branch locations.

The county's fiscal year runs from January 1 through December 31. The Board of Commissioners adopts an annual budget that is publicly accessible through the Cobb County Finance Department. Cobb County's fiscal operations intersect with Georgia state budget and finance mechanisms in areas including state aid distribution and grant compliance.

Common scenarios

Residents and businesses interact with Cobb County government across a defined set of high-frequency service contexts:

• Property tax disputes — Property owners may appeal assessed values through the Cobb County Board of Tax Assessors, with further appeal rights to the Board of Equalization or the Superior Court. The Tax Assessors' office operates under O.C.G.A. § 48-5-311.
• Building permits and development approvals — New construction, additions, and changes of use in unincorporated Cobb require permits from the Community Development Agency. Commercial projects may also require zoning variance hearings before the Board of Zoning Appeals.
• Business licensing — Businesses operating in unincorporated Cobb must obtain an Occupation Tax Certificate from the county. Businesses within incorporated municipalities obtain licenses from those cities.
• Voter registration and elections — County elections are administered by the Cobb County Board of Elections and Registration, operating under Georgia Elections Code and oversight by the Georgia Secretary of State. Cobb County contains the 6th, 11th, and portions of other U.S. Congressional districts.
• Social services referrals — Cobb County's Department of Family and Children Services (DFCS) is a state-administered unit operating locally under the Georgia Department of Human Services.

Decision boundaries

Understanding which governmental body has jurisdiction over a specific matter in Cobb County requires distinguishing between 4 overlapping authority layers:

The distinction between incorporated and unincorporated Cobb County is the most operationally significant boundary for service delivery. Residents outside city limits receive county police, fire, water (in some zones), and planning services directly. Residents inside city limits typically receive police, fire, and planning from their municipality, while still being subject to county tax assessment and county court jurisdiction.

Cobb County does not exercise authority over state-level regulatory matters administered by agencies such as the Georgia Department of Labor, Georgia Bureau of Investigation, or Georgia State Patrol, which operate independently of county government through state agency chains of command.

For a broader view of how county governments fit within Georgia's governmental hierarchy, the Georgia Government Authority index provides statewide structural context. Adjacent counties including Cherokee County, Fulton County, Paulding County (see Douglas County for comparable structure), and Bartow County operate under the same statutory framework with variations in population scale and service delivery models.

References

• Cobb County Board of Commissioners — Official Site
• Georgia Code Title 36 — Local Government (Georgia General Assembly) (see also O.C.G.A. § 36-1 via Georgia General Assembly)
• Georgia General Assembly — O.C.G.A. § 48-5-311 (Property Tax Appeals)
• Georgia Secretary of State — Elections Division
• Georgia Department of Public Health — District Health Departments
• Georgia Department of Human Services — DFCS
• Georgia Department of Revenue — Property Tax
• Cobb & Douglas Public Health
• Cobb County Tax Assessors Office
• Cobb County Board of Elections and Registration