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Court Structure

13 min read 5 practice questions
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This lesson describes the structure of courts in the United States for study purposes. It is not legal advice, does not state the law or court structure of any particular state beyond the examples named, and should not be relied on for any legal decision. Court organization, judicial selection, and specialized dockets vary by state and change over time.
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On this page 9 sections
  1. In 30 seconds
  2. Why this matters
  3. The college version
  4. Eli explains
  5. Worked example
  6. Key takeaway
  7. Quick check
  8. Study tools
  9. Sources & references

In 30 seconds

The United States runs two court systems side by side. The federal system has 94 district courts, 13 courts of appeals, and the Supreme Court. Every state separately runs its own trial and appellate courts, and those courts decide most criminal cases. Neither system is a rung on the other's ladder. Which court may hear a case is a question of jurisdiction, and court names vary so much between states that the label alone tells you almost nothing.

Why this matters

Nearly every later question in a courts unit assumes you already know which court is deciding and where its authority comes from. Structure also explains outcomes that look arbitrary from outside: why the same act can be charged by two governments without violating double jeopardy, why the Supreme Court leaves the overwhelming majority of appeals untouched, and why a felony trial in New York happens in something called the Supreme Court. Reading a citation, a docket, or a news report about a ruling starts with placing the deciding court on the map, and that skill transfers to any legal or policy work you do later.

The college version

Two systems, side by side

Article III of the Constitution vests the judicial power of the United States in a federal court system, and Congress built the levels beneath the Supreme Court. Every state, separately and under its own constitution, builds its own judiciary. Criminal justice texts call the arrangement the , and the point of the phrase is that the two are parallel rather than stacked. A state trial court is not a lower rung of the federal ladder. A state's highest court is the final authority on what that state's own law means, and no federal court can overrule it on that question. The systems divide the work. The Administrative Office of the U.S. Courts describes state courts as handling most criminal cases, along with probate, most contract and tort suits, and family law, while federal courts take constitutional questions, cases under federal statutes and treaties, admiralty, bankruptcy, disputes between states, and habeas corpus. The single hinge between them is federal law: a judgment from a state's can be brought to the U.S. Supreme Court, which reviews judgments from state and federal courts alike. That route is a petition, not an appeal by right.

The federal ladder

There are 94 federal judicial districts, with at least one district court in every state and in the District of Columbia. District courts are the trial courts: they take evidence, empanel juries, and enter judgment. Those 94 districts are grouped into 12 regional circuits, and each circuit has a court of appeals that reviews decisions from the district courts inside it. A thirteenth court of appeals, the U.S. Court of Appeals for the Federal Circuit, is organized by subject rather than geography and hears specialized appeals nationwide, including patent cases and appeals from the Court of International Trade and the Court of Federal Claims. Appellate courts do a different job from trial courts, not a grander version of the same one. They do not retry cases, hear witnesses, take new evidence, or use juries; circuit judges normally sit in panels of three and decide whether the law was applied correctly to the record already made below. When the full court sits instead of a panel, that is an en banc hearing. Bankruptcy work sits inside this structure rather than beside it: each district includes a bankruptcy court as a unit of the district court, and the Administrative Office counts 90 of them.

Who counts as a federal judge

Article III, Section 1 says the judges of the supreme and inferior courts hold their offices during good behavior and receive compensation that cannot be reduced while they serve. Those two clauses are the whole design: a judge who cannot be fired for an unpopular ruling and cannot be punished through salary is meant to be insulated from the other branches. District judges, circuit judges, and Justices are nominated by the President, confirmed by the Senate, and removable only by impeachment. Much of the federal judiciary's daily work, though, is done by judicial officers who do not have that tenure. Under 28 U.S.C. 631, the district judges of a court appoint their own magistrate judges, full-time for eight-year terms and part-time for four; magistrate judges conduct initial proceedings in criminal cases, decide criminal misdemeanor cases, and handle a large share of pretrial matters. Under 28 U.S.C. 152, bankruptcy judges are appointed by the court of appeals for their circuit and serve fourteen-year terms. District judges in the territorial districts of Guam, the Virgin Islands, and the Northern Mariana Islands serve ten-year terms. The distinction is about tenure and independence, not about the importance of the work.

The Supreme Court's discretionary docket

Article III, Section 2 gives the Supreme Court in cases affecting ambassadors and other public ministers and consuls, and in cases where a state is a party; in everything else its jurisdiction is appellate, subject to whatever exceptions and regulations Congress makes. Congress made them. Under 28 U.S.C. 1254, a case in a court of appeals reaches the Supreme Court either by writ of granted on the petition of any party in any civil or criminal case, or by the court of appeals certifying a question of law. The scale matters more than the mechanics. The Court reports that roughly 5,000 to 7,000 new cases are filed each Term, that plenary review with oral argument is currently granted in about 80 of them, and that it typically disposes of about 100 or more without plenary review; the Justices work through roughly 130 petitions a week. By the federal judiciary's own account, four of the nine must vote to accept a case, and the Court is usually under no obligation to hear one at all. The practical consequence for almost every litigant is that the federal court of appeals or the state court of last resort is the last court that will ever look at the case.

The state pattern, and why the names mislead

State systems differ, but a common shape recurs. At the bottom are courts of limited jurisdiction, which handle violations, infractions, and minor misdemeanors and take the early steps in felony cases before those move up. Above them are courts of general jurisdiction, which try felonies and major misdemeanors. Most states, though not all, have an intermediate appellate level, and a few have more than one. Every state has a court of last resort, usually but not always called the supreme court. Then the names stop cooperating. New York's own Unified Court System chart puts the Court of Appeals at the top; the Appellate Divisions of the Supreme Court, the Appellate Terms of the Supreme Court for the First and Second Departments, and the County Courts at the intermediate appellate level; and the Supreme Courts, County Courts, District Courts, New York City Criminal Courts, City Courts, Town Courts, and Village Courts among the courts of original instance. In New York, the Supreme Court is where a felony trial happens, and the County Court appears at two levels at once. Read the chart for the state you are studying and treat the label as a name, not a description.

Jurisdiction decides where a case goes

Jurisdiction is the legal authority of a court to hear and decide a certain type of case, and it splits along several axes at once. asks what kind of case this is: criminal, probate, tax, patent. Authority over the parties asks who is before the court, which is why juvenile courts and courts-martial exist as separate tracks. Seriousness sorts limited-jurisdiction courts from general-jurisdiction courts. Geography follows federalism, so an Oregon court has no authority over a crime committed in California. Original jurisdiction means a court is the first to hear a case; means it has power to review another court's judgment. The exclusive-versus-concurrent cut is the one that surprises students most, and 18 U.S.C. 3231 states it plainly: the district courts have original jurisdiction, exclusive of the state courts, over all offenses against the laws of the United States, and nothing in title 18 takes away or impairs state court jurisdiction under state law. Federal crimes go to federal court and nowhere else. State crimes go to state court. When one act violates both codes, both systems have authority over their own offense.

One act, two sovereigns

That last sentence has a doctrinal name and a recent test. Gamble pleaded guilty to Alabama's felon-in-possession offense; federal prosecutors then indicted him for the same instance of possession. He argued that the second prosecution put him twice in jeopardy for the same offence under the Fifth Amendment. In Gamble v. United States, argued December 6, 2018 and decided June 17, 2019, the Supreme Court declined to overturn the dual-sovereignty doctrine and affirmed the Eleventh Circuit. Its reasoning ran through the word offence: an offence is defined by a law, each law is defined by a sovereign, so two sovereigns produce two laws and two offences. Justice Alito wrote for a seven-Justice majority; Justices Ginsburg and Gorsuch each dissented. The point for a courts unit is structural rather than moral. The constitutional bar most people assume exists does not, and seeing why requires seeing that the two systems answer to separate governments rather than sitting at two levels of one. The Court itself observed that eliminating the dual-sovereignty rule would do little to prevent many successive state and federal prosecutions for the same criminal conduct.

The people in the room

A courtroom is not staffed by strangers. The judge, the prosecutor, and the defense attorneys in a given courthouse appear before one another week after week, and criminal courts scholarship has long treated them as a workgroup rather than three independent offices. Reviewing that literature in 2013, Richard Young described the as a standard framework for explaining the patterns of decisions and the internal dynamics of criminal trial courts across common law jurisdictions, one built around the interdependent relationships among its members. The study usually named alongside the framework is James Eisenstein and Herbert Jacob's Felony Justice: An Organizational Analysis of Criminal Courts, published in 1977. The framework is descriptive, and it cuts both ways. Repeat-player relationships make courts predictable, let routine cases move, and give each side reliable information about the other. They can also produce local expectations about how an ordinary case is handled that appear in no statute, which is why the framework is used to explain variation between courthouses rather than between codes.

How judges get their jobs, and specialized dockets

Federal judges are appointed and confirmed. State judges are not, or not only. The Administrative Office describes state selection methods as including election, appointment for a set number of years, appointment for life, and combinations such as appointment followed by election. Merit selection, usually called the Missouri Plan, is one of those combinations. Missouri voters adopted the Nonpartisan Selection of Judges Court Plan by initiative in November 1940; under it a judicial commission reviews applications, interviews candidates, and sends the governor a panel of three names, with the commission itself choosing if the governor does not act within 60 days. After at least a year in office, the judge stands for a retention election on a separate ballot without party designation and needs a majority to stay. Which method produces better judges is genuinely disputed, and this lesson takes no position. A separate structural development is the problem-solving court, a specialized docket led by a judicial officer that aims at an underlying problem such as addiction or mental illness. BJS counted 3,052 of them in 2012, most commonly drug courts (1,330) and mental health courts (337); 65 percent took cases only after a guilty plea, and participants spent a median of one year in the program. On effectiveness, the National Institute of Justice's CrimeSolutions clearinghouse rated adult drug courts Promising for crime and delinquency outcomes, both across offense types and for drug and alcohol offenses, and Ineffective for substance use outcomes. That is a real but bounded result, and it is worth stating at exactly that strength rather than rounding it up or down.

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Eli explains

The same idea, in plain words

Explain it like I’m 10

Imagine two separate school districts in the same town. Each has its own rules, its own principals, and its own way of handling problems. A student in one district does not appeal a detention to the principal of the other district, because that principal has no authority there. American courts work like that. State courts handle crimes a state legislature wrote, and federal courts handle crimes Congress wrote. Inside each system there are levels: a trial court where the facts get sorted out, and appeal courts that only check whether the trial court followed the rules. Appeal courts never hear witnesses. The one place the two systems meet is the U.S. Supreme Court, which can take a case from either side, but only if it wants to, and it grants full review with argument in about 80 cases a year out of the thousands it is asked to take.

Picture it like this

Court structure is like two separate ladders standing next to each other, one federal and one for your state, with a single narrow bridge at the very top that only a few cases ever cross.

Where the picture stops working

The ladders are not the same height or shape. Some states have three rungs and some have four, and the two ladders are not doing the same job, because state courts handle far more criminal cases than federal courts do. The bridge is also one-way and narrow: cases can go up to the U.S. Supreme Court on questions of federal law, but no federal court can reach across and tell a state court what that state's own law means.

Worked example

Follow one case through the structure. Terance Gamble was convicted in Alabama state court under that state's felon-in-possession statute after a guilty plea. Federal prosecutors then charged him for the same instance of possession, because possession by a felon is also a federal offense, and 18 U.S.C. 3231 gives federal district courts exclusive jurisdiction over federal crimes. He moved to dismiss on double jeopardy grounds, lost in the district court, pleaded guilty while preserving the issue, and appealed to the Eleventh Circuit, which affirmed. He then petitioned the Supreme Court for a writ of certiorari, which the Court granted. On June 17, 2019, the Court affirmed 7-2, holding that two sovereigns define two offences, so this was not a second prosecution for the same offence. Every step in that path is a structural feature: exclusive federal jurisdiction, a trial court, an appeal by right to a circuit court, and a discretionary petition to a court that takes almost nothing.

Key takeaway

The United States has two parallel court systems rather than one national hierarchy, and jurisdiction, not rank or name, decides which court may hear a case; the federal ladder runs from 94 district courts through 13 courts of appeals to a Supreme Court that chooses almost none of the cases offered to it, while each state builds its own levels under its own labels.

Quick check

3 questions here, of 5 in this lesson’s practice set. Answers stay hidden until you check.

Question 1 of 3foundational

How many U.S. courts of appeals sit below the Supreme Court in the federal system, and how are they organized?

Choose an answer, then check it.
Question 2 of 3intermediate

In New York's court structure, where does the court named the Supreme Court sit?

Choose an answer, then check it.
Question 3 of 3intermediate

A person pleads guilty in state court to a state firearms offense. Federal prosecutors then charge the same act as a federal firearms offense. Under Gamble v. United States (2019), how does the Double Jeopardy Clause apply?

Choose an answer, then check it.
Practice all 5

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Practice this lesson
Study tools & related lessonsYou’ll learn to · Common mistakes · Easily confused · Key vocabulary · Related

You’ll learn to

  • Define the dual court system and explain why the federal and state judiciaries are parallel rather than stacked.
  • Distinguish district courts, courts of appeals, and the Supreme Court by function, and Article III judges from magistrate, bankruptcy, and territorial judges by tenure.
  • Apply the distinctions between subject-matter and party-based, original and appellate, and exclusive and concurrent jurisdiction to decide which court may hear a case.
  • Explain the dual sovereignty doctrine as the Supreme Court applied it in Gamble v. United States (2019).
  • Analyze how the courtroom workgroup and the method of judicial selection shape everyday court practice, and evaluate what the evidence does and does not show about problem-solving courts.

Common mistakes

  • Treating state courts as the bottom of a single national hierarchy, so that a losing party in state court appeals into the federal court of appeals.

    The systems are parallel. A state case moves up through that state's own appellate levels, and its court of last resort has the final word on state law. The only route into the federal system is a petition to the U.S. Supreme Court raising a federal question, and that review is discretionary.

  • Assuming a court called the Supreme Court is a state's highest court.

    Names vary. New York's own court structure chart shows its Supreme Court among the courts of original instance, with the Court of Appeals at the top and the Appellate Divisions of the Supreme Court sitting at the intermediate appellate level.

  • Concluding that a federal prosecution after a state conviction for the same act is unconstitutional double jeopardy.

    Gamble v. United States (2019) declined to overturn the dual-sovereignty doctrine: an offence is defined by a law and each law by a sovereign, so two sovereigns create two offences. Whether such a second prosecution happens is a matter of prosecutorial policy, not a constitutional bar.

  • Picturing an appeal as a second trial with better lawyers.

    Appellate courts take no new evidence, hear no witnesses, and use no jury. A federal circuit panel of three judges reads the record and the briefs and decides whether the law was applied correctly below.

  • Assuming every federal judge has life tenure.

    Only Article III judges hold office during good behavior. Magistrate judges serve eight-year full-time terms and are appointed by the district judges themselves, bankruptcy judges serve fourteen-year terms appointed by the circuit, and territorial district judges serve ten years.

Easily confused

Federal court system vs. State court system

Federal courts exist under Article III and Congress's statutes and hear federal questions, federal crimes, bankruptcy, admiralty, and disputes between states; each state's courts exist under that state's constitution and decide most criminal cases. Neither is an appellate tier of the other, and a state's highest court is the final authority on state law.

Trial court vs. Appellate court

A trial court has original jurisdiction: it receives evidence, resolves disputed facts, and enters judgment. An appellate court exercises appellate jurisdiction over the record only, without witnesses, new evidence, or a jury, asking whether the law was applied correctly.

Exclusive jurisdiction vs. Concurrent jurisdiction

18 U.S.C. 3231 gives federal district courts jurisdiction over federal offenses exclusive of the state courts, so a federal crime cannot be tried in state court. Concurrent authority arises when one act violates both a state and a federal statute, in which case each sovereign may prosecute its own offense.

Article III judge vs. Fixed-term federal judicial officers

Article III judges are nominated by the President, confirmed by the Senate, and hold office during good behavior with protected salary. Magistrate judges (eight years), bankruptcy judges (fourteen years), and territorial district judges (ten years) serve fixed terms and are appointed within the judiciary itself.

Appeal of right to a court of appeals vs. Petition for certiorari to the Supreme Court

A party who loses in a federal district court may appeal to the circuit court, which must decide the appeal. Review by the Supreme Court is asked for, not owed: four Justices must vote to grant, and plenary review is currently given in roughly 80 of the 5,000 to 7,000 cases filed each Term.

Key vocabulary

dual court system
The arrangement in which a federal judiciary and each state's own judiciary operate in parallel, every one created by its own constitution and carrying its own trial and appellate levels.
subject-matter jurisdiction
A court's authority over a particular kind of case, such as criminal, probate, tax, or patent matters, as distinct from its authority over the people involved.
original jurisdiction
The power to hear a case first, taking evidence and deciding the disputed facts rather than reviewing what another court already did.
appellate jurisdiction
The power to review the judgment of a lower court for legal error, working from the record and briefs rather than from witnesses or new evidence.
concurrent jurisdiction
A situation in which more than one court system has authority over the same conduct, as when a single act violates both a state code and a federal statute.
certiorari
The discretionary writ by which the U.S. Supreme Court agrees to review a case, granted on the petition of a party rather than owed to a litigant as of right.
Article III judge
A federal judge nominated by the President and confirmed by the Senate who holds office during good behavior, with compensation that cannot be reduced during service.
magistrate judge
A judicial officer appointed by the district judges of a court for a fixed term who conducts initial criminal proceedings, decides criminal misdemeanor cases, and handles much pretrial work.
court of last resort
The highest court in a given system, whose ruling on that system's own law ends the matter; every state has one, though not all are named supreme court.
courtroom workgroup
The judge, prosecutors, and defense attorneys who appear together repeatedly in one courthouse, analyzed as an interdependent group whose shared expectations shape how ordinary cases are handled.

Sources & references

  1. Comparing Federal and State Courts — Administrative Office of the U.S. Courts
  2. Court Role and Structure — Administrative Office of the U.S. Courts
  3. About the U.S. Courts of Appeals — Administrative Office of the U.S. Courts
  4. About the U.S. District Courts — Administrative Office of the U.S. Courts
  5. Supreme Court Procedures — Administrative Office of the U.S. Courts
  6. Glossary of Legal Terms — Administrative Office of the U.S. Courts
  7. The Supreme Court at Work — Supreme Court of the United States
  8. The Court and Its Procedures — Supreme Court of the United States
  9. 28 U.S.C. 1254 - Courts of appeals; certiorari; certified questions — Office of the Law Revision Counsel, U.S. House of Representatives
  10. 28 U.S.C. 631 - Appointment and tenure of United States magistrate judges — Office of the Law Revision Counsel, U.S. House of Representatives
  11. 28 U.S.C. 152 - Appointment of bankruptcy judges — Office of the Law Revision Counsel, U.S. House of Representatives
  12. 18 U.S.C. 3231 - District courts — Office of the Law Revision Counsel, U.S. House of Representatives
  13. Gamble v. United States, 587 U.S. ___ (2019) (slip opinion, No. 17-646) — Supreme Court of the United States
  14. Structure of the Courts (New York State Unified Court System criminal court structure chart) — New York State Unified Court System
  15. Nonpartisan Court Plan — Missouri Judiciary (Office of State Courts Administrator)
  16. Census of Problem-Solving Courts, 2012 (NCJ 249803) — Bureau of Justice Statistics, U.S. Department of Justice
  17. Practice Profile: Adult Drug Courts — CrimeSolutions, National Institute of Justice
  18. SOU-CCJ230 Introduction to the American Criminal Justice System, 7.2: Jurisdiction — Lore Rutz-Burri / Open Oregon Educational Resources
  19. SOU-CCJ230 Introduction to the American Criminal Justice System, 7.3: The Dual Court and Federal Court System — Lore Rutz-Burri / Open Oregon Educational Resources
  20. SOU-CCJ230 Introduction to the American Criminal Justice System, 7.4: Structure of the Courts: State Courts — Lore Rutz-Burri / Open Oregon Educational Resources
  21. Exploring the Boundaries of the Criminal Courtroom Workgroup — Common Law World Review (Richard Young), volume 42, issue 3, pages 203-239
  22. Open Library catalog record: Felony justice: an organizational analysis of criminal courts (James Eisenstein, Herbert Jacob, 1977) — Open Library / Internet Archive

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Researched 2026-08-19

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