Dearborn County, Indiana: Government Structure and Services

Dearborn County is one of Indiana's 92 counties, situated in the southeastern corner of the state along the Ohio border, with Lawrenceburg serving as the county seat. The county operates under Indiana's statutory framework for county government, which establishes a uniform structure of elected officials, administrative departments, and service delivery obligations. This page describes that structure, how county services are organized and accessed, the scenarios in which county government functions are most commonly engaged, and the boundaries that separate county jurisdiction from municipal, township, state, and federal authority.

Definition and Scope

Dearborn County government is a unit of general-purpose local government organized under Indiana Code Title 36 (IC 36), which governs counties, municipalities, and townships across the state. As a Class 2 county — a classification determined by population thresholds under Indiana law — Dearborn County's governing body is the Board of County Commissioners, a 3-member elected board that holds executive and limited legislative authority over county operations. A separately elected County Council, composed of 7 members, holds fiscal authority, including the power to appropriate funds and set tax levies.

County population, as recorded in the 2020 U.S. Census (U.S. Census Bureau), stood at approximately 49,458 residents, placing Dearborn County among Indiana's mid-size counties by population. The county encompasses the municipalities of Lawrenceburg, Aurora, Greendale, and West Harrison, as well as unincorporated townships governed under separate township trustee structures.

Scope and coverage: This page covers governmental structure and services within Dearborn County's jurisdictional boundary under Indiana law. It does not address municipal operations within Lawrenceburg, Aurora, Greendale, or West Harrison, which function as separate units of local government with independent elected bodies. Federal programs administered locally — such as USDA services through the Farm Service Agency or federal court jurisdiction — fall outside county government's scope. For an overview of Indiana's broader county government model, see Indiana County Government Structure.

How It Works

Dearborn County government delivers services through a network of elected constitutional officers and appointed department heads. The primary elected offices are:

  1. Board of County Commissioners (3 members) — Executive authority; contracts, capital projects, county property, zoning ordinances in unincorporated areas.
  2. County Council (7 members) — Appropriations, tax rates, salary ordinances; no direct administrative role.
  3. County Auditor — Financial records, tax duplicates, payroll, budget coordination.
  4. County Assessor — Property valuation for tax purposes under IC 6-1.1.
  5. County Treasurer — Tax collection, investment of county funds.
  6. County Recorder — Recording of deeds, mortgages, liens, and other instruments affecting real property title.
  7. County Clerk — Court records, voter registration, election administration.
  8. County Sheriff — Law enforcement in unincorporated areas, county jail operations.
  9. County Surveyor — Maintenance of the county's legal survey record, drainage oversight under the county drainage board.
  10. County Coroner — Death investigation in cases of sudden, violent, or unexplained death.
  11. Prosecuting Attorney — Criminal prosecution for the judicial circuit; Dearborn County shares a circuit with Ohio County as part of the 2nd Judicial Circuit.

The Indiana Department of Local Government Finance (DLGF) provides oversight of county fiscal operations, including review of tax rates and budget submissions. Dearborn County's assessed property valuation and levy certifications are subject to DLGF review annually.

Common Scenarios

Residents, businesses, and professionals most frequently interact with Dearborn County government in the following contexts:

Decision Boundaries

Understanding which level of government handles a specific matter is essential for accurate service access.

County vs. Municipal: Within Lawrenceburg, Aurora, Greendale, or West Harrison, zoning, building permits, local ordinance enforcement, and utility services are administered by the respective municipal government, not by the county. County zoning jurisdiction applies only in unincorporated areas. For context on how Indiana municipal government is structured, see Indiana Municipal Government.

County vs. Township: Township trustees in Dearborn County administer local assistance (poor relief), fire protection in some unincorporated areas, and small claims court assessor functions. Township operations are distinct from county departments even when physically co-located.

County vs. State: Matters such as driver licensing, state income tax, professional licensing, and criminal appeals beyond the circuit level involve state agencies — including the Indiana Department of Revenue and the Indiana State Police — rather than county offices. The county interfaces with state government primarily through DLGF oversight, state court administration, and health department coordination with the Indiana Department of Health.

For the broader context of Indiana government organization and how county units fit within the state's administrative hierarchy, see the Indiana Government Authority index.

References