Mexico › Sinaloa state › December 2025
Sinaloa state: conflict events in December 2025
Monthly report from UCDP event data for Sinaloa state, Mexico. Country-wide report: Mexico, December 2025.
Sinaloa state, Mexico saw 52 recorded events and 32 estimated deaths in December 2025. That is -31% compared with 75 events the month before. The death toll range is 23 to 63.
94% of the month's events were non-state conflict. Civilian deaths: 2.
The most active pairing was Sinaloa Cartel - Los Chapitos - Sinaloa Cartel - Los Mayos with 47 events.
Where events happened
Deadliest events, December 2025
| Date | Where | Parties | Est. deaths |
|---|---|---|---|
| 17 Dec 2025 | Concordia municipality Sinaloa state | Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state, 2 sources | 3 |
| 23 Dec 2025 | Navolato municipality Sinaloa state | Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state | 2 |
| 9 Dec 2025 | Culiacán municipality Sinaloa state | Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state | 2 |
| 3 Dec 2025 | Culiacán municipality Sinaloa state | Jalisco Cartel New Generation, Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state | 2 |
| 28 Dec 2025 | Culiacán municipality Sinaloa state | Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state | 1 |
| 26 Dec 2025 | Concordia municipality Sinaloa state | Jalisco Cartel New Generation, Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state | 1 |
| 25 Dec 2025 | Culiacán municipality Sinaloa state | Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state | 1 |
| 25 Dec 2025 | Culiacán municipality Sinaloa state | Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state | 1 0–1 |
| 23 Dec 2025 | Navolato municipality Sinaloa state | Sinaloa Cartel vs Civilians One-sided, 1 civilian | 1 0–1 |
| 23 Dec 2025 | Culiacán municipality Sinaloa state | Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state | 1 |
Parties
| Party | Events | Est. deaths |
|---|---|---|
| Sinaloa Cartel - Los Mayos | 49 | 30 |
| Sinaloa Cartel - Los Chapitos | 47 | 27 |
| Sinaloa Cartel | 3 | 2 |
| Jalisco Cartel New Generation, Sinaloa Cartel - Los Chapitos | 2 | 3 |
All months
Monthly reports:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Jan 2026Dec 2025Nov 2025Oct 2025Sep 2025Aug 2025Jul 2025Jun 2025May 2025Apr 2025Mar 2025Feb 2025Jan 2025Dec 2024Nov 2024Oct 2024Sep 2024Aug 2024Jul 2024
Source: UCDP GED and Candidate Events, CC BY 4.0. See methodology.