Countries › Mexico › December 2025
Mexico: conflict events in December 2025
Monthly report from UCDP event data.
Mexico saw 158 recorded events and 152 estimated deaths in December 2025. That is -21% compared with 199 events the month before. The death toll range is 100 to 210.
98% of the month's events were non-state conflict. Civilian deaths: 4.
Events were concentrated in Sinaloa state (52), Guanajuato state (37), Chihuahua state (22).
The most active pairing was Sinaloa Cartel - Los Chapitos - Sinaloa Cartel - Los Mayos with 50 events.
Where events happened
Regions, December 2025
| Region | Events | Est. deaths |
|---|---|---|
| Sinaloa state | 52 | 32 |
| Guanajuato state | 37 | 28 |
| Chihuahua state | 22 | 29 |
| Guerrero state | 18 | 22 |
| Baja California state | 15 | 13 |
| Tabasco state | 5 | 6 |
| Chiapas state | 2 | 7 |
| Jalisco state | 2 | 4 |
| Michoacán state | 1 | 6 |
| Sonora state | 1 | 2 |
Deadliest events, December 2025
| Date | Where | Parties | Est. deaths |
|---|---|---|---|
| 28 Dec 2025 | Cintalapa municipality Chiapas state | Jalisco Cartel New Generation vs Sinaloa Cartel Non-state | 6 |
| 6 Dec 2025 | Coahuayana municipality Michoacán state | Carteles Unidos vs Jalisco Cartel New Generation, Los Blancos de Troya, Los de la Virgen, Los Viagras Non-state, 3 sources | 6 |
| 6 Dec 2025 | Valle de Santiago municipality Guanajuato state | Jalisco Cartel New Generation vs Santa Rosa de Lima Cartel Non-state, 2 sources | 5 |
| 15 Dec 2025 | Irapuato municipality Guanajuato state | Jalisco Cartel New Generation vs Santa Rosa de Lima Cartel Non-state | 4 |
| 12 Dec 2025 | Irapuato municipality Guanajuato state | Jalisco Cartel New Generation vs Santa Rosa de Lima Cartel Non-state, 1 civilian | 4 |
| 29 Dec 2025 | Juárez municipality Chihuahua state | Juarez Cartel vs Sinaloa Cartel Non-state | 3 |
| 29 Dec 2025 | Guadalajara municipality Jalisco state | Jalisco Cartel New Generation, Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state, 1 civilian, 3 sources | 3 |
| 17 Dec 2025 | Concordia municipality Sinaloa state | Sinaloa Cartel - Los Chapitos vs Sinaloa Cartel - Los Mayos Non-state, 2 sources | 3 |
| 3 Dec 2025 | Acapulco de Juárez municipality Guerrero state | Cartel Independiente de Acapulco vs Los Rusos Non-state | 3 |
| 2 Dec 2025 | Juárez municipality Chihuahua state | Juarez Cartel vs Sinaloa Cartel Non-state | 3 |
Parties
| Party | Events |
|---|---|
| Sinaloa Cartel - Los Mayos | 68 |
| Sinaloa Cartel - Los Chapitos | 51 |
| Jalisco Cartel New Generation | 45 |
| Santa Rosa de Lima Cartel | 37 |
| Sinaloa Cartel | 28 |
| Juarez Cartel | 22 |
Type of violence
| Category | Events |
|---|---|
| State-based | 0 |
| Non-state | 155 |
| One-sided | 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. Counts use the "best" fatality estimate. See methodology.