Oregon State Court System: Structure and Jurisdiction
The legal landscape of Oregon is managed by the Oregon Judicial Department, a unified system established by the state legislature in 1981. This unification, which began in 1983, brought together the district, circuit, tax, and appellate courts to create a more streamlined judicial process. Over the following decades, the system continued to evolve, including the merger of district and circuit courts in 1997 and the addition of a Magistrate Division to the Tax Court in 1998.
Today, the state operates through four primary courts, each serving a specific role in the administration of justice, ranging from initial trial proceedings to final appellate reviews.

Key Facts
- The Oregon Supreme Court is the highest court in the state.
- The Oregon Circuit Courts serve as the primary trial-level courts for civil and criminal cases.
- The Court of Appeals acts as the intermediate appellate level for most circuit court decisions.
- The Tax Court has exclusive jurisdiction over state tax law facts and legal questions.
- Judges in the Supreme Court and Court of Appeals are elected statewide to six-year terms.
The Hierarchy of Oregon Courts
Oregon Supreme Court
As the state's highest judicial authority, the Oregon Supreme Court consists of seven justices elected statewide to six-year terms. From among these members, the justices elect a Chief Justice to serve a six-year term. The court primarily hears appeals from the Oregon Court of Appeals and the Oregon Tax Court, though it also handles select direct appeals and specific legal issues such as ballot measure titling and electoral districting. Decisions made by this court can only be appealed to the United States Supreme Court.
Oregon Court of Appeals
The Oregon Court of Appeals serves as the intermediate appellate court. It is tasked with reviewing the actions of most state administrative agencies and hearing nearly all civil and criminal appeals originating from the circuit courts. The court is composed of ten judges, elected statewide in nonpartisan elections for six-year terms. The administrative leadership is provided by a Chief Judge, who is appointed by the Chief Justice of the Supreme Court.
Oregon Tax Court
The Oregon Tax Court holds exclusive jurisdiction over legal questions and facts arising from all state tax laws. To handle its caseload, the court is split into two divisions: the Magistrate Division, where magistrate judges handle trial-level cases, and the Regular Division, which hears appeals from the Magistrate Division. The court is led by an elected Tax Judge.
Oregon Circuit Courts
The Oregon Circuit Courts are the state's general jurisdiction trial courts. Formed by the 1998 combination of state District Courts, they are organized into 27 judicial districts across Oregon. These courts handle the majority of criminal and civil proceedings. In most areas—with the exception of six Eastern Oregon counties—they also maintain jurisdiction over juvenile matters, adoptions, probate issues, and conservatorships or guardianships.
Summary of Oregon's Judicial Structure
| Court | Level | Primary Jurisdiction | Leadership/Composition |
|---|---|---|---|
| Supreme Court | Highest | Final appeals, electoral districting, ballot titling | 7 Justices (6-year terms) |
| Court of Appeals | Intermediate | Circuit court appeals, administrative agency review | 10 Judges (6-year terms) |
| Tax Court | Specialized | State tax laws (Magistrate and Regular divisions) | Elected Tax Judge |
| Circuit Courts | Trial | General civil, criminal, probate, and juvenile cases | 27 Judicial Districts |
Frequently Asked Questions
Which court is the highest in the state of Oregon?
The Oregon Supreme Court is the highest court in the state.
How are the justices of the Oregon Supreme Court selected?
The seven justices are elected statewide to serve six-year terms.
What is the difference between the Magistrate and Regular divisions of the Tax Court?
The Magistrate Division handles cases at the trial level, while the Regular Division hears appeals originating from the Magistrate Division.
Where do most appeals from the Circuit Courts go?
The majority of appeals from the Oregon Circuit Courts are handled by the Oregon Court of Appeals.
How many judicial districts make up the Oregon Circuit Courts?
The Oregon Circuit Courts are divided into 27 judicial districts across the state.
Can a decision from the Oregon Supreme Court be appealed?
Yes, appeals from the Oregon Supreme Court can only be taken to the United States Supreme Court.