U.S. District Court for the District of Wyoming

The U.S. District Court for the District of Wyoming is the sole federal trial court serving the state of Wyoming, exercising original jurisdiction over federal civil and criminal matters arising within Wyoming's borders. This page covers the court's structure, subject-matter jurisdiction, procedural mechanics, and the boundaries that separate it from state-level tribunals. Understanding how this court fits into the broader legal landscape is essential for anyone navigating federal litigation in Wyoming.

Definition and scope

The U.S. District Court for the District of Wyoming is a federal Article III court established under the authority of 28 U.S.C. § 133, which grants Congress the power to create and staff district courts. Wyoming constitutes a single judicial district — meaning one federal district covers the entire state, unlike larger states divided into multiple districts. The court maintains three active courthouses: Cheyenne (the primary location and primary location), Casper, and Jackson.

As a component of the federal judiciary under Article III of the U.S. Constitution, the court's judges are appointed by the President and confirmed by the Senate, serving lifetime tenure during good behavior. The District of Wyoming typically operates with 3 authorized district judgeships (Federal Judicial Center, District Court Tables) and is supplemented by magistrate judges who handle preliminary matters and, with consent of the parties, full civil proceedings under 28 U.S.C. § 636.

Scope and coverage: This court's jurisdiction is limited to cases that invoke federal subject-matter jurisdiction. It does not apply to disputes arising purely under Wyoming state law unless diversity jurisdiction attaches (parties from different states with an amount in controversy exceeding $75,000 per 28 U.S.C. § 1332). State criminal prosecutions, family law matters, probate proceedings, and most landlord-tenant disputes are not covered by this federal court — those fall within Wyoming's state court system. Matters involving the Wind River Indian Reservation may implicate both this court and tribal courts with their own sovereign jurisdiction.

For a foundational orientation to how federal and state courts interact within Wyoming's legal structure, see the conceptual overview of the Wyoming U.S. legal system.

How it works

The District of Wyoming follows the Federal Rules of Civil Procedure (FRCP) and the Federal Rules of Criminal Procedure (FRCrP), as adopted and supplemented by the court's own Local Rules (D. Wyo. Local Rules). Cases proceed through identifiable phases:

1. Filing and assignment — A complaint or indictment is filed with the clerk. Civil cases are assigned to a district judge and a magistrate judge by automated random selection. Criminal cases are assigned following indictment or information.
2. Pleadings and motions — Defendants respond within the timeframes set by FRCP Rule 12. Pre-trial motions — including motions to dismiss, motions for summary judgment, and suppression motions in criminal cases — are briefed and decided before trial.
3. Discovery — Civil cases proceed through the discovery framework under FRCP Rules 26–37, which govern depositions, interrogatories, requests for production, and electronic discovery. The court's scheduling order, issued under FRCP Rule 16, sets controlling deadlines.
4. Pretrial conference — The court convenes parties to narrow issues, address evidentiary disputes, and set a trial date.
5. Trial — Bench trials (decided by the judge) or jury trials are conducted in accordance with the Federal Rules of Evidence. Felony criminal defendants have a Sixth Amendment right to jury trial. Civil jury trials attach when the amount in controversy and the nature of the claim trigger the Seventh Amendment.
6. Judgment and post-trial motions — After verdict, motions under FRCP Rules 50 and 59 may challenge the result before appeal.
7. Appeal — Final judgments from this court are appealed to the U.S. Court of Appeals for the Tenth Circuit, which sits in Denver, Colorado. Tenth Circuit decisions are authoritative precedent binding on this district.

The court's Electronic Case Filing (ECF) system, administered through PACER (Public Access to Court Electronic Records), governs document filing for attorneys. Pro se litigants may file paper documents under specific court procedures; the pro se self-representation framework describes the standards that apply.

Common scenarios

Federal litigation in the District of Wyoming clusters around identifiable subject-matter categories:

• Federal criminal prosecutions — Cases brought by the U.S. Attorney's Office for the District of Wyoming under federal statutes, including drug trafficking offenses under 21 U.S.C. § 841, firearms violations, wire fraud, and federal public lands crimes. Wyoming's vast federal land holdings — comprising approximately 48% of the state's land area (Bureau of Land Management, Wyoming) — generate a distinct category of federal criminal matters involving illegal resource extraction, trespass, and off-road vehicle violations.
• Civil rights litigation — Claims under 42 U.S.C. § 1983 for constitutional violations by state actors proceed here. Federal employment discrimination claims under Title VII (42 U.S.C. § 2000e) and the Americans with Disabilities Act also fall within this court's jurisdiction, distinct from Wyoming civil rights enforcement mechanisms.
• Energy, natural resources, and environmental disputes — Wyoming's economy is heavily weighted toward energy extraction. Challenges to federal agency decisions affecting oil, gas, and coal leases — particularly actions of the Bureau of Land Management or the Environmental Protection Agency — are reviewed in this court under the Administrative Procedure Act (5 U.S.C. § 706). The intersection of Wyoming's energy and natural resources law with federal regulatory authority is a structurally significant area of this court's docket.
• Diversity jurisdiction cases — Private civil disputes between citizens of different states exceeding $75,000 in controversy, including contract breaches and tort claims, may be filed here even when no federal statute is at issue. The court applies Wyoming state substantive law in such cases under the Erie doctrine (Erie Railroad Co. v. Tompkins*, 304 U.S. 64 (1938)).
• Habeas corpus petitions — State prisoners challenging the constitutionality of their confinement file petitions under 28 U.S.C. § 2254 in this court after exhausting state remedies through the Wyoming appellate process.
• Bankruptcy-adjacent matters — While Wyoming bankruptcy cases are handled by the U.S. Bankruptcy Court for the District of Wyoming (a separate Article I court), district court review of bankruptcy court orders proceeds here under 28 U.S.C. § 158.

The regulatory context for the Wyoming legal system provides additional framing for how federal agencies interact with state law in cases that reach this court.

Decision boundaries

Understanding what this court handles — and what it does not — requires distinguishing several overlapping jurisdictional categories.

Federal question vs. diversity jurisdiction: Federal question jurisdiction under 28 U.S.C. § 1331 requires that the claim arise under the Constitution, a federal statute, or a treaty. Diversity jurisdiction under § 1332 requires complete diversity of citizenship between all plaintiffs and defendants plus the $75,000 threshold. A state-law dispute between two Wyoming residents, regardless of dollar amount, cannot be brought in federal court under either basis.

Article III vs. Article I courts: The District Court is