The publication

Are There Cartels in Wyoming? Tren de Aragua, Sinaloa Cartel, 1 Federal Case and Evidence (2026)

Which Mexican cartels and transnational gangs are reported in Wyoming, what federal prosecutors have charged since 2024, and our latest Wyoming coverage. Every item links to its source.

Cartels in the U.S.: map and all states · Mexico cartel map

At a glance

Groups reported with Wyoming-specific evidence: Tren de Aragua, Sinaloa Cartel
Federal drug-trafficking cases since Jan 2024: 1 (1 sentenced)
Cities in those cases: Cheyenne

How to read this page

Reported presence comes from DEA, Congressional Research Service, Justice Department and news reports that name Wyoming or a city in it. It shows where groups have been reported, not how many people are involved.
Federal cases are Justice Department, U.S. Attorney, DEA, FBI and HSI announcements since January 2024. We name a cartel only when the release itself does; other cases are listed as drug-trafficking cases. Charged people are presumed innocent until convicted, so we don’t list defendants’ names here. Follow the link to read the release.
What it doesn’t tell you: cartel activity in your neighborhood, or crime rates. It is a record of what officials and reporters have published.

Nationwide: the DEA’s 2025 National Drug Threat Assessment says associates, facilitators and affiliates of the Sinaloa Cartel and CJNG operate in almost all 50 U.S. states. [Small Wars Journal (summary of DEA NDTA 2025), 2025-05-18] The state-by-state evidence below goes further: named cities, federal cases and official reports.

Groups reported in Wyoming

Tren de Aragua (news report, as of 2024) [Homeland Security Newswire, 2024-12-31]

Federal cases in Wyoming (since Jan 2024)

Date	City	Charges	Stage	Source
2025-11-10	Cheyenne	Release names: Sinaloa Cartel	Sentenced	USAO-District of Wyoming

Our Wyoming coverage

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Last reviewed: September 30, 2026. Report errors via our corrections page.